SERVICE MANUAL HTP-8230(S) 5.1-CH HOME THEATER SPEAKER PACKAGE MODEL

HTP-8230
SERVICE MANUAL
Ref. No. 3815
082004
5.1-CH HOME THEATER SPEAKER PACKAGE
MODEL HTP-8230(S)
Powered Subwoofer
"SKW-8230"
Front Speakers (L / R)
"SKF-8230F"
Center Speaker
"SKC-8230C"
Surround Speakers (L / R)
"SKM-8230S"
Silver model
SMDD
120 V AC, 60Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK
ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
HTP-8230
SPECIFICATIONS
Powered Subwoofer (SKW-8230)
Type :
Input sensitivity / impedance :
Maximum output power :
Frequency response :
Cabinet capacity :
Dimensions (W x H x D) :
Weight :
Speaker unit :
Power supply :
Power consumption :
Other :
Powered Bass-reflex
220 mV / 15 k ohm
100 W (Dynamic Power)
35 Hz - 150 Hz
0.91 cubic feet (26 Litter)
9-1/16 x 17-13/16 x 15-7/8
inch
(230 x 436 x 404 mm)
24.7 lbs. (11.2 kg)
8 inch Cone
AC 120 V, 60 Hz
75 W
Auto Standby function
Front Speaker (SKF-8230F)
Type :
Impedance :
Maximum input power :
Output sound pressure level :
Frequency response :
Crossover frequency :
Cabinet capacity :
Dimensions (W x H x D) :
Weight :
Speaker unit :
Woofer :
Tweeter :
Terminal :
Other :
2 Way Bass-reflex
8 ohm
100 W
76 dB/W/m
70 Hz - 50 kHz
4.5 kHz
0.035 cubic feet (1.0 Litter)
4 x 6-5/8 x 4-15/16 inch
(101 x 169 x 126 mm)
2.6 lbs. (1.2 kg)
3-1/8 inch Cone
1 inch Balanced Dome
Spring type Color coded
Magnetic shielding
Center Speaker (SKC-8230C)
Type :
Impedance :
Maximum input power :
Output sound pressure level :
Frequency response :
Crossover frequency :
Cabinet capacity :
Dimensions (W x H x D) :
Weight :
Speaker unit :
Woofer
Tweeter
Terminal :
Other :
2 Way Bass-reflex
8 ohm
100 W
78 dB/W/m
70 Hz - 50 kHz
4.5 kHz
0.057 cubic feet (1.6 Litter)
10-3/8 x 4 x 4-15/16 inch
(264 x 101 x 126 mm)
4.4 lbs. (2.0 kg)
3-1/8" inch Cone x 2
1 inch Balanced Dome
Spring type Color coded
Magnetic shielding
Surround Speaker (SKM-8230S)
Type :
Impedance :
Maximum input power :
Output sound pressure level :
Frequency response :
Crossover frequency :
Cabinet capacity :
Dimensions (W x H x D) :
Weight :
Speaker unit :
Woofer :
Tweeter :
Terminal :
2 Way Bass-reflex
8 ohm
100 W
79 dB/W/m
70 Hz - 30 kHz
10 kHz
0.035 cubic feet (1.0 Litter)
4 x 6-5/8 x 4-15/16 inch
(101 x 169 x 126 mm)
1.8 lbs. (0.8 kg)
3-1/8 inch Cone Woofer
3/4 inch Ceramic Tweeter
Spring type Color coded
Specifications and appearance are subject to change
without prior notice.
HTP-8230
EXPLODED VIEWS-1
SKW-8230 : POWERED SUBWOOFER
SP06
x 10 pcs.
A02
A01
Refer to "EXPLODED VIEWS-2"
A03
U03
U02
U01
A05 x 4 pcs.
A04
F903
F902
HTP-8230
<Note>
IC501---> Refer to "PRINTED CIRCUIT BOARD PARTS LIST"
HTP-8230
EXPLODED VIEWS-2
SKW-8230 : POWERED SUBWOOFER
SP01
SP02
x 4 pcs.
SP04
SP03
SP08
SP05
x 8 pcs.
HTP-8230
SP06
x 8 pcs.
HTP-8230
EXPLODED VIEWS-3
SKF-8230F / SKC-8230C / SKM-8230S
SP13
SP11
SP10
SP12
SP14
SP15
L:
NA ck
I
RM la
TE ite / B
Wh
L:
NA ck
I
RM la
TE en / B
e
Gr
L:
NA
MI ack
R
TE / Bl
Red
"SKF-8230F (L)"
"SKC-8230C"
"SKF-8230F (R)"
SP16
SP18
SP17
SP19
L:
NA
I
RM ck
TE e / Bla
Blu
L:
NA k
I
RM ac
TE y / Bl
Gra
"SKM-8230S (R)"
NOT MAGNETICALLY SHIELDED
HTP-8230
"SKM-8230S (L)"
NOT MAGNETICALLY SHIELDED
HTP-8230
BLOCK DIAGRAM
SKW-8230 : POWERED SUBWOOFER
HTP-8230
HTP-8230
A
B
C
D
HTP-8230
E
F
G
H
SCHEMATIC DIAGRAM
SKW-8230 : POWERED SUBWOOFER
SPEAKER
1
2
3
LINE
INPUT
OUTPUT
LEVEL
4
LED
RED : STANDBY
GREEN : ON
U02 INPUT PC BOARD
U03 VR / LED PC BOARD
U01 MAIN PC BOARD
AC 120V / 60Hz
5
HTP-8230
A
B
C
D
HTP-8230
E
F
G
H
SCHEMATIC DIAGRAM
SKW-8230 : POWERED SUBWOOFER
SPEAKER
1
2
3
LINE
INPUT
OUTPUT
LEVEL
4
LED
RED : STANDBY
GREEN : ON
U02 INPUT PC BOARD
U03 VR / LED PC BOARD
U01 MAIN PC BOARD
AC 120V / 60Hz
5
HTP-8230
A
B
C
D
E
F
G
H
SCHEMATIC DIAGRAM
SKW-8230 : POWERED SUBWOOFER
SPEAKER
1
2
3
LINE
INPUT
OUTPUT
LEVEL
4
LED
RED : STANDBY
GREEN : ON
U02 INPUT PC BOARD
U03 VR / LED PC BOARD
U01 MAIN PC BOARD
AC 120V / 60Hz
5
HTP-8230
PC BOARD CONNECTION DIAGRAM
SKW-8230 : POWERED SUBWOOFER
INPUT PC BOARD
MAIN PC BOARD
VR / LED PC BOARD
HTP-8230
HTP-8230
A
B
C
PRINTED CIRCUIT BOARD VIEW
SKW-8230 : POWERED SUBWOOFER
1
U01 MAIN PC BOARD
2
3
4
U02 INPUT PC BOARD
5
U03 VR / LED PC BOARD
No PC board view
Look over the actual PC board on hand
D
TDA7293
®
120V - 100W DMOS AUDIO AMPLIFIER WITH MUTE/ST-BY
VERY HIGH OPERATING VOLTAGE RANGE
(±50V)
DMOS POWER STAGE
HIGH OUTPUT POWER (100W @ THD =
10%, RL = 8Ω, VS = ±40V)
MUTING/STAND-BY FUNCTIONS
NO SWITCH ON/OFF NOISE
VERY LOW DISTORTION
VERY LOW NOISE
SHORT CIRCUIT PROTECTED (WITH NO INPUT SIGNAL APPLIED)
THERMAL SHUTDOWN
CLIP DETECTOR
MODULARITY (MORE DEVICES CAN BE
EASILY CONNECTED IN PARALLEL TO
DRIVE VERY LOW IMPEDANCES)
MULTIPOWER BCD TECHNOLOGY
Multiwatt15V
Multiwatt15H
ORDERING NUMBERS:
TDA7293V
TDA7293HS
class TV). Thanks to the wide voltage range and
to the high out current capability it is able to supply the highest power into both 4Ω and 8Ω loads.
The built in muting function with turn on delay
simplifies the remote operation avoiding switching
on-off noises.
Parallel mode is made possible by connecting
more device through of pin11. High output power
can be delivered to very low impedance loads, so
optimizing the thermal dissipation of the system.
DESCRIPTION
The TDA7293 is a monolithic integrated circuit in
Multiwatt15 package, intended for use as audio
class AB amplifier in Hi-Fi field applications
(Home Stereo, self powered loudspeakers, TopFigure 1: Typical Application and Test Circuit
+Vs
C7 100nF
C6 1000µF
R3 22K
C2
22µF
BUFFER DRIVER
+Vs
R2
680Ω
C1 470nF
IN-
2
IN+
3
+PWVs
11
7
13
-
R5 10K
MUTE
STBY
BOOT
LOADER
C5
22µF
6
10
5
THERMAL
SHUTDOWN
MUTE
VSTBY
12
4
(**)
VMUTE
OUT
+
R1 22K
SGND
14
9
S/C
PROTECTION
(*)
BOOTSTRAP
CLIP DET
VCLIP
STBY
R4 22K
C3 10µF
C4 10µF
1
8
15
STBY-GND
-Vs
-PWVs
C9 100nF
C8 1000µF
D97AU805A
(*) see Application note
(**) for SLAVE function
January 2003
-Vs
1/15
TDA7293
PIN CONNECTION (Top view)
15
-VS (POWER)
14
OUT
13
+VS (POWER)
12
BOOTSTRAP LOADER
11
BUFFER DRIVER
10
MUTE
9
STAND-BY
8
-VS (SIGNAL)
7
+VS (SIGNAL)
6
BOOTSTRAP
5
CLIP AND SHORT CIRCUIT DETECTOR
4
SIGNAL GROUND
3
NON INVERTING INPUT
2
INVERTING INPUT
1
STAND-BY GND
TAB CONNECTED TO PIN 8
D97AU806
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
±60
90
V
VS
V1
Supply Voltage (No Signal)
V2
Input Voltage (inverting) Referred to -VS
90
V
Maximum Differential Inputs
±30
V
V2 - V3
VSTAND-BY GND Voltage Referred to -VS (pin 8)
V
V3
Input Voltage (non inverting) Referred to -VS
90
V
V4
Signal GND Voltage Referred to -VS
90
V
V5
Clip Detector Voltage Referred to -VS
120
V
V6
V9
Bootstrap Voltage Referred to -VS
Stand-by Voltage Referred to -VS
120
120
V
V
V10
Mute Voltage Referred to -VS
120
V
V11
Buffer Voltage Referred to -VS
120
V
V12
Bootstrap Loader Voltage Referred to -VS
100
V
Output Peak Current
10
A
50
0 to 70
W
°C
150
°C
IO
Ptot
Top
Tstg, Tj
Power Dissipation Tcase = 70°C
Operating Ambient Temperature Range
Storage and Junction Temperature
THERMAL DATA
Symbol
Rth j-case
2/15
Description
Thermal Resistance Junction-case
Typ
Max
Unit
1
1.5
°C/W
TDA7293
ELECTRICAL CHARACTERISTICS (Refer to the Test Circuit VS = ±40V, RL = 8Ω, Rg = 50 Ω;
Tamb = 25°C, f = 1 kHz; unless otherwise specified).
Symbol
Parameter
VS
Iq
Supply Range
Quiescent Current
Ib
Input Bias Current
VOS
Input Offset Voltage
IOS
Input Offset Current
PO
RMS Continuous Output Power
d
Total Harmonic Distortion (**)
ISC
Current Limiter Threshold
SR
Slew Rate
GV
Open Loop Voltage Gain
GV
eN
Closed Loop Voltage Gain (1)
Ri
SVR
TS
Total Input Noise
Test Condition
Min.
Typ.
Max.
Unit
50
±50
100
V
mA
±12
0.3
-10
d = 1%:
RL = 4Ω; VS = ± 29V,
75
d = 10%
RL = 4Ω ; VS = ±29V
PO = 5W; f = 1kHz
PO = 0.1 to 50W; f = 20Hz to 15kHz
90
1
µA
10
mV
0.2
µA
80
80
100
100
W
W
0.005
0.1
VS ≤ ± 40V
6.5
A
5
10
V/µs
29
30
31
dB
1
3
10
µV
µV
80
A = curve
f = 20Hz to 20kHz
Input Resistance
%
%
dB
100
kΩ
Supply Voltage Rejection
f = 100Hz; Vripple = 0.5Vrms
75
dB
Thermal Protection
DEVICE MUTED
150
°C
DEVICE SHUT DOWN
160
°C
STAND-BY FUNCTION (Ref: to pin 1)
VST on
VST off
ATTst-by
Iq st-by
Stand-by on Threshold
1.5
Stand-by off Threshold
3.5
Stand-by Attenuation
70
Quiescent Current @ Stand-by
V
V
90
0.5
dB
1
mA
1.5
V
MUTE FUNCTION (Ref: to pin 1)
VMon
Mute on Threshold
VMoff
Mute off Threshold
3.5
Mute AttenuatIon
60
ATTmute
V
80
dB
CLIP DETECTOR
Duty
Duty Cycle ( pin 5)
THD = 1% ; RL = 10KΩ to 5V
THD = 10% ;
RL = 10KΩ to 5V
10
30
PO = 50W
ICLEAK
40
%
50
%
3
µA
1
V
V
SLAVE FUNCTION pin 4 (Ref: to pin 8 -VS)
VSlave
VMaster
SlaveThreshold
Master Threshold
3
Note (1): GVmin ≥ 26dB
Note: Pin 11 only for modular connection. Max external load 1MΩ/10 pF, only for test purpose
Note (**): Tested with optimized Application Board (see fig. 2)
3/15
TDA7293
Figure 2: Typical Application P.C. Board and Component Layout (scale 1:1)
4/15
TDA7293
APPLICATION SUGGESTIONS (see Test and Application Circuits of the Fig. 1)
The recommended values of the external components are those shown on the application circuit of Figure 1. Different values can be used; the following table can help the designer.
LARGER THAN
SUGGESTED
SMALLER THAN
SUGGESTED
INCREASE INPUT
IMPEDANCE
DECREASE INPUT
IMPEDANCE
COMPONENTS
SUGGESTED VALUE
PURPOSE
R1 (*)
22k
INPUT RESISTANCE
R2
680Ω
R3 (*)
22k
R4
22k
ST-BY TIME
CONSTANT
LARGER ST-BY
ON/OFF TIME
SMALLER ST-BY
ON/OFF TIME;
POP NOISE
R5
10k
MUTE TIME
CONSTANT
LARGER MUTE
ON/OFF TIME
SMALLER MUTE
ON/OFF TIME
C1
0.47µF
INPUT DC
DECOUPLING
HIGHER LOW
FREQUENCY
CUTOFF
C2
22µF
FEEDBACK DC
DECOUPLING
HIGHER LOW
FREQUENCY
CUTOFF
C3
10µF
MUTE TIME
CONSTANT
LARGER MUTE
ON/OFF TIME
SMALLER MUTE
ON/OFF TIME
C4
10µF
ST-BY TIME
CONSTANT
LARGER ST-BY
ON/OFF TIME
SMALLER ST-BY
ON/OFF TIME;
POP NOISE
C5
22µFXN (***)
BOOTSTRAPPING
C6, C8
1000µF
SUPPLY VOLTAGE
BYPASS
C7, C9
0.1µF
SUPPLY VOLTAGE
BYPASS
CLOSED LOOP GAIN DECREASE OF GAIN INCREASE OF GAIN
SET TO 30dB (**)
INCREASE OF GAIN DECREASE OF GAIN
SIGNAL
DEGRADATION AT
LOW FREQUENCY
DANGER OF
OSCILLATION
(*) R1 = R3 for pop optimization
(**) Closed Loop Gain has to be ≥ 26dB
(***) Multiplay this value for the number of modular part connected
Slave function: pin 4 (Ref to pin 8 -VS)
-VS +3V
-VS +1V
-VS
MASTER
UNDEFINED
Note:
If in the application, the speakers are connected
via long wires, it is a good rule to add between
the output and GND, a Boucherot Cell, in order to
avoid dangerous spurious oscillations when the
speakers terminal are shorted.
The suggested Boucherot Resistor is 3.9Ω/2W
and the capacitor is 1µF.
SLAVE
D98AU821
5/15
TDA7293
INTRODUCTION
In consumer electronics, an increasing demand
has arisen for very high power monolithic audio
amplifiers able to match, with a low cost, the performance obtained from the best discrete designs.
The task of realizing this linear integrated circuit
in conventional bipolar technology is made extremely difficult by the occurence of 2nd breakdown phoenomenon. It limits the safe operating
area (SOA) of the power devices, and, as a consequence, the maximum attainable output power,
especially in presence of highly reactive loads.
Moreover, full exploitation of the SOA translates
into a substantial increase in circuit and layout
complexity due to the need of sophisticated protection circuits.
To overcome these substantial drawbacks, the
use of power MOS devices, which are immune
from secondary breakdown is highly desirable.
The device described has therefore been developed in a mixed bipolar-MOS high voltage technology called BCDII 100/120.
1) Output Stage
The main design task in developping a power operational amplifier, independently of the technology used, is that of realization of the output stage.
The solution shown as a principle shematic by
Fig3 represents the DMOS unity - gain output
buffer of the TDA7293.
This large-signal, high-power buffer must be capable of handling extremely high current and voltage levels while maintaining acceptably low harmonic distortion and good behaviour over
frequency response; moreover, an accurate control of quiescent current is required.
A local linearizing feedback, provided by differential amplifier A, is used to fullfil the above requirements, allowing a simple and effective quiescent
current setting.
Proper biasing of the power output transistors
alone is however not enough to guarantee the absence of crossover distortion.
While a linearization of the DC transfer characteristic of the stage is obtained, the dynamic behaviour of the system must be taken into account.
A significant aid in keeping the distortion contributed by the final stage as low as possible is provided by the compensation scheme, which exploits the direct connection of the Miller capacitor
at the amplifier’s output to introduce a local AC
feedback path enclosing the output stage itself.
2) Protections
In designing a power IC, particular attention must
be reserved to the circuits devoted to protection
of the device from short circuit or overload conditions.
Due to the absence of the 2nd breakdown phenomenon, the SOA of the power DMOS transistors is delimited only by a maximum dissipation
curve dependent on the duration of the applied
stimulus.
In order to fully exploit the capabilities of the
power transistors, the protection scheme implemented in this device combines a conventional
SOA protection circuit with a novel local temperature sensing technique which " dynamically" controls the maximum dissipation.
Figure 3: Principle Schematic of a DMOS unity-gain buffer.
6/15
TDA7293
Figure 4: Turn ON/OFF Suggested Sequence
+Vs
(V)
+40
-40
-Vs
VIN
(mV)
VST-BY
PIN #9
(V)
5V
VMUTE
PIN #10
(V)
5V
IQ
(mA)
VOUT
(V)
OFF
ST-BY
PLAY
MUTE
ST-BY
OFF
MUTE
D98AU817
In addition to the overload protection described
above, the device features a thermal shutdown
circuit which initially puts the device into a muting
state (@ Tj = 150 oC) and then into stand-by (@
Tj = 160 oC).
Full protection against electrostatic discharges on
every pin is included.
Figure 5: Single Signal ST-BY/MUTE Control
Circuit
MUTE
MUTE/
ST-BY
STBY
20K
10K
30K
1N4148
mute functions, independently driven by two
CMOS logic compatible input pins.
The circuits dedicated to the switching on and off
of the amplifier have been carefully optimized to
avoid any kind of uncontrolled audible transient at
the output.
The sequence that we recommend during the
ON/OFF transients is shown by Figure 4.
The application of figure 5 shows the possibility of
using only one command for both st-by and mute
functions. On both the pins, the maximum applicable range corresponds to the operating supply
voltage.
10µF
10µF
D93AU014
3) Other Features
The device is provided with both stand-by and
APPLICATION INFORMATION
HIGH-EFFICIENCY
Constraints of implementing high power solutions
are the power dissipation and the size of the
power supply. These are both due to the low efficiency of conventional AB class amplifier approaches.
Here below (figure 6) is described a circuit proposal for a high efficiency amplifier which can be
adopted for both HI-FI and CAR-RADIO applications.
7/15
TDA7293
The TDA7293 is a monolithic MOS power amplifier which can be operated at 100V supply voltage
(120V with no signal applied) while delivering output currents up to ±6.5 A.
This allows the use of this device as a very high
power amplifier (up to 180W as peak power with
T.H.D.=10 % and Rl = 4 Ohm); the only drawback
is the power dissipation, hardly manageable in
the above power range.
The typical junction-to-case thermal resistance of
the TDA7293 is 1 oC/W (max= 1.5 oC/W). To
avoid that, in worst case conditions, the chip temperature exceedes 150 oC, the thermal resistance
of the heatsink must be 0.038 oC/W (@ max ambient temperature of 50 oC).
As the above value is pratically unreachable; a
high efficiency system is needed in those cases
where the continuous RMS output power is higher
than 50-60 W.
The TDA7293 was designed to work also in
higher efficiency way.
For this reason there are four power supply pins:
two intended for the signal part and two for the
power part.
T1 and T2 are two power transistors that only
operate when the output power reaches a certain
threshold (e.g. 20 W). If the output power increases, these transistors are switched on during
the portion of the signal where more output voltage swing is needed, thus "bootstrapping" the
power supply pins (#13 and #15).
The current generators formed by T4, T7, zener
diodes Z1, Z2 and resistors R7,R8 define the
minimum drop across the power MOS transistors
of the TDA7293. L1, L2, L3 and the snubbers C9,
R1 and C10, R2 stabilize the loops formed by the
"bootstrap" circuits and the output stage of the
TDA7293.
By considering again a maximum average
output power (music signal) of 20W, in case
of the high efficiency application, the thermal
resistance value needed from the heatsink is
2.2 oC/W (Vs =±50 V and Rl= 8 Ohm).
All components (TDA7293 and power transistors T1 and T2) can be placed on a 1.5 oC/W
heatsink, with the power darlingtons electrically
insulated from the heatsink.
Since the total power dissipation is less than that
of a usual class AB amplifier, additional cost savings can be obtained while optimizing the power
supply, even with a high heatsink .
BRIDGE APPLICATION
Another application suggestion is the BRIDGE
configuration, where two TDA7293 are used.
In this application, the value of the load must not
be lower than 8 Ohm for dissipation and current
capability reasons.
A suitable field of application includes HI-FI/TV
subwoofers realizations.
8/15
The main advantages offered by this solution are:
- High power performances with limited supply
voltage level.
- Considerably high output power even with high
load values (i.e. 16 Ohm).
With Rl= 8 Ohm, Vs = ±25V the maximum output
power obtainable is 150 W, while with Rl=16
Ohm, Vs = ±40V the maximum Pout is 200 W.
APPLICATION NOTE: (ref. fig. 7)
Modular Application (more Devices in Parallel)
The use of the modular application lets very high
power be delivered to very low impedance loads.
The modular application implies one device to act
as a master and the others as slaves.
The slave power stages are driven by the master
device and work in parallel all together, while the input and the gain stages of the slave device are disabled, the figure below shows the connections required to configure two devices to work together.
The master chip connections are the same as
the normal single ones.
The outputs can be connected together without the need of any ballast resistance.
The slave SGND pin must be tied to the negative supply.
The slave ST-BY and MUTE pins must be connected to the master ST-BY and MUTE pins.
The bootstrap lines must be connected together and the bootstrap capacitor must be increased: for N devices the boostrap capacitor
must be 22µF times N.
The slave IN-pin must be connected to the
negative supply.
THE BOOTSTRAP CAPACITOR
For compatibility purpose with the previous devices of the family, the boostrap capacitor can be
connected both between the bootstrap pin (6) and
the output pin (14) or between the boostrap pin
(6) and the bootstrap loader pin (12).
When the bootcap is connected between pin 6
and 14, the maximum supply voltage in presence
of output signal is limited to 100V, due the bootstrap capacitor overvoltage.
When the bootcap is connected between pins 6
and 12 the maximum supply voltage extend to the
full voltage that the technology can stand: 120V.
This is accomplished by the clamp introduced at
the bootstrap loader pin (12): this pin follows the
output voltage up to 100V and remains clamped
at 100V for higher output voltages. This feature
lets the output voltage swing up to a gate-source
voltage from the positive supply (VS -3 to 6V).
TDA7293
Figure 6: High Efficiency Application Circuit
+50V
D6
1N4001
T1
BDX53A
T3
BC394
R4
270
D1 BYW98100
+25V
T4
BC393
R17 270
L1 1µH
D3 1N4148
C12 330nF
R20
20K
C1
1000µF
63V
C3
100nF
C5
1000µF
35V
C7
100nF
R22
10K
C9
330nF
IN
C2
1000µF
63V
13
TDA7293
C13 10µF
C4
100nF
C6
1000µF
35V
R23
10K
C8
100nF
R2
2
C10
330nF
D5
1N4148
1
R15 10K
10
C14
10µF
D2 BYW98100
-25V
D7
1N4001
R6
20K
C11 22µF
R7
3.3K
L3 5µH
OUT
R18 270
C15
22µF
R8
3.3K
12
8
C16
1.8nF
14
R13 20K
R14 30K
R3 680
R16
13K
6
9
ST-BY
R21
20K
7
2
4
PLAY
GND
T5
BC393
Z1 3.9V
3
R12
13K
R1
2
R5
270
C17
1.8nF
Pot
15
Z2 3.9V
L2 1µH
D4 1N4148
T7
BC394
R19 270
T2
BDX54A
T6
BC393
R9
270
T8
BC394
R10
270
R11
20K
-50V
D97AU807C
Figure 6a: PCB and Component Layout of the fig. 6
9/15
TDA7293
Figure 6b: PCB - Solder Side of the fig. 6.
Figure 7: Modular Application Circuit
+Vs
C7 100nF
C6 1000µF
R3 22K
MASTER
BUFFER
DRIVER
+Vs
C2
22µF
R2
680Ω
C1 470nF
IN-
2
IN+
3
7
+PWVs
13
11
-
R1 22K
VMUTE
R5 10K
SGND
4
MUTE
10
STBY
9
R4 22K
C4 10µF
OUT
12
BOOT
LOADER
6
MUTE
VSTBY
14
+
THERMAL
SHUTDOWN
STBY
S/C
PROTECTION
1
8
15
STBY-GND
-Vs
-PWVs
C9 100nF
C3 10µF
5
C10
100nF
R7
2Ω
C5
47µF
BOOTSTRAP
CLIP DET
C8 1000µF
-Vs
+Vs
C7 100nF
C6 1000µF
BUFFER
DRIVER
+Vs
IN-
2
IN+
3
7
+PWVs
13
11
-
SLAVE
SGND
4
MUTE
10
9
STBY
OUT
12
BOOT
LOADER
6
MUTE
THERMAL
SHUTDOWN
STBY
S/C
PROTECTION
1
8
15
STBY-GND
-Vs
-PWVs
C9 100nF
C8 1000µF
-Vs
10/15
14
+
5
BOOTSTRAP
D97AU808D
TDA7293
Figure 8a: Modular Application P.C. Board and Component Layout (scale 1:1) (Component SIDE)
Figure 8b: Modular Application P.C. Board and Component Layout (scale 1:1) (Solder SIDE)
11/15
TDA7293
Figure 12: Modular Application Derating Rload
vs Vsupply (ref. fig. 7)
Figure 9: Distortion vs Output Power
T.H.D (%)
10
6
5
Minimum Allovable Load (ohm)
2
1
0.5
0.2
Vs = +/-29V
Rl = 4 Ohm
0.1
f = 20 KHz
0.05
0.02
f = 1KHz
0.01
0.005
5
4
3
2
Forbidden Area
Pd > 50W at Tcase=70°C
1
0.002
0
0.001
2
5
10
20
50
100
20
25
Pout (W)
30
35
40
45
50
Supply Voltage (+/-Vcc)
Figure 10: Distortion vs Output Power
Figure 13: Modular Application Pd vs Vsupply
(ref. fig. 7)
T.H.D (%)
10
5
60
Pd limit at Tcase=70°C
2
Dissipated Power for each
device of the modular
application
4ohm
50
Vs = +/-40V
Rl = 8 Ohm
0.5
0.2
0.1
0.05
Pdissipated (W)
1
f = 20 KHz
0.02
0.01
40
30
8ohm
20
f = 1KHz
0.005
10
0.002
0.001
2
5
10
20
50
0
100
20
Pout (W)
25
30
35
40
45
50
Supply Voltage (+/-Vcc)
Figure 11: Distortion vs Frequency
Figure 14: Output Power vs. Supply Voltage
T.H.D. (%)
Po (W)
10
120
110
100
1
VS= +/- 35 V
90
Rl= 8 Ohm
80
Rl=8 Ohm
f= 1 KHz
T.H.D.=10 %
70
60
0.1
50
40
Pout=100 mW
THD=0.5 %
30
0.01
20
10
Po=50 W
0
0.001
0
12/15
0.1
1
Frequency (KHz)
10
100
10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40
Vs (+/-V)
TDA7293
13/15
TDA7293
mm
DIM.
MIN.
TYP.
inch
MAX.
MIN.
TYP.
MAX.
A
5
0.197
B
2.65
0.104
C
1.6
E
0.49
0.55
0.063
0.019
0.022
F
0.66
0.75
0.026
G
1.14
1.27
1.4
0.045
0.050
0.055
G1
17.57
17.78
17.91
0.692
0.700
0.705
H1
19.6
0.030
0.772
H2
20.2
0.795
L
20.57
0.810
L1
18.03
0.710
L2
2.54
0.100
L3
17.25
17.5
17.75
0.679
0.689
0.699
L4
10.3
10.7
10.9
0.406
0.421
0.429
L5
5.28
0.208
L6
2.38
0.094
L7
2.65
2.9
0.104
0.114
S
1.9
2.6
0.075
0.102
S1
1.9
2.6
0.075
0.102
Dia1
3.65
3.85
0.144
0.152
14/15
OUTLINE AND
MECHANICAL DATA
Multiwatt15 H
TDA7293
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
© 2003 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
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http://www.st.com
15/15
LM124/LM224/LM324/LM2902
Low Power Quad Operational Amplifiers
General Description
Advantages
The LM124 series consists of four independent, high gain,
internally frequency compensated operational amplifiers
which were designed specifically to operate from a single
power supply over a wide range of voltages. Operation from
split power supplies is also possible and the low power supply current drain is independent of the magnitude of the
power supply voltage.
Application areas include transducer amplifiers, DC gain
blocks and all the conventional op amp circuits which now
can be more easily implemented in single power supply systems. For example, the LM124 series can be directly operated off of the standard +5V power supply voltage which is
used in digital systems and will easily provide the required
interface electronics without requiring the additional ± 15V
power supplies.
n Eliminates need for dual supplies
n Four internally compensated op amps in a single
package
n Allows directly sensing near GND and VOUT also goes
to GND
n Compatible with all forms of logic
n Power drain suitable for battery operation
Unique Characteristics
n In the linear mode the input common-mode voltage
range includes ground and the output voltage can also
swing to ground, even though operated from only a
single power supply voltage
n The unity gain cross frequency is temperature
compensated
n The input bias current is also temperature compensated
Features
n Internally frequency compensated for unity gain
n Large DC voltage gain 100 dB
n Wide bandwidth (unity gain) 1 MHz
(temperature compensated)
n Wide power supply range:
Single supply 3V to 32V
or dual supplies ± 1.5V to ± 16V
n Very low supply current drain (700 µA) — essentially
independent of supply voltage
n Low input biasing current 45 nA
(temperature compensated)
n Low input offset voltage 2 mV
and offset current: 5 nA
n Input common-mode voltage range includes ground
n Differential input voltage range equal to the power
supply voltage
n Large output voltage swing 0V to V+ − 1.5V
Connection Diagram
Dual-In-Line Package
DS009299-1
Top View
Order Number LM124J, LM124AJ, LM124J/883 (Note 2), LM124AJ/883 (Note 1), LM224J,
LM224AJ, LM324J, LM324M, LM324MX, LM324AM, LM324AMX, LM2902M, LM2902MX, LM324N, LM324AN,
LM324MT, LM324MTX or LM2902N LM124AJRQML and LM124AJRQMLV(Note 3)
See NS Package Number J14A, M14A or N14A
Note 1: LM124A available per JM38510/11006
Note 2: LM124 available per JM38510/11005
© 2000 National Semiconductor Corporation
DS009299
www.national.com
LM124/LM224/LM324/LM2902 Low Power Quad Operational Amplifiers
August 2000
LM124/LM224/LM324/LM2902
Connection Diagram
(Continued)
Note 3: See STD Mil DWG 5962R99504 for Radiation Tolerant Device
DS009299-33
Order Number LM124AW/883, LM124AWG/883, LM124W/883 or LM124WG/883
LM124AWRQML and LM124AWRQMLV(Note 3)
See NS Package Number W14B
LM124AWGRQML and LM124AWGRQMLV(Note 3)
See NS Package Number WG14A
Schematic Diagram
(Each Amplifier)
DS009299-2
www.national.com
2
LM124/LM224/LM324/LM2902
Absolute Maximum Ratings (Note 12)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
LM124/LM224/LM324
LM2902
LM124A/LM224A/LM324A
Supply Voltage, V+
32V
Differential Input Voltage
26V
32V
26V
−0.3V to +32V
−0.3V to +26V
50 mA
50 mA
Molded DIP
1130 mW
1130 mW
Cavity DIP
1260 mW
1260 mW
Small Outline Package
800 mW
800 mW
Input Voltage
Input Current
(VIN < −0.3V) (Note 6)
Power Dissipation (Note 4)
Output Short-Circuit to GND
(One Amplifier) (Note 5)
V+ ≤ 15V and TA = 25˚C
Continuous
Continuous
Operating Temperature Range
−40˚C to +85˚C
LM324/LM324A
0˚C to +70˚C
LM224/LM224A
−25˚C to +85˚C
LM124/LM124A
−55˚C to +125˚C
Storage Temperature Range
−65˚C to +150˚C
−65˚C to +150˚C
260˚C
260˚C
260˚C
260˚C
Vapor Phase (60 seconds)
215˚C
215˚C
Infrared (15 seconds)
220˚C
220˚C
Lead Temperature (Soldering, 10 seconds)
Soldering Information
Dual-In-Line Package
Soldering (10 seconds)
Small Outline Package
See AN-450 “Surface Mounting Methods and Their Effect on Product Reliability” for other methods of soldering surface mount
devices.
ESD Tolerance (Note 13)
250V
250V
Electrical Characteristics
V+ = +5.0V, (Note 7), unless otherwise stated
Parameter
Input Offset Voltage
(Note 8) TA = 25˚C
Input Bias Current
IIN(+) or IIN(−), VCM = 0V,
(Note 9)
TA = 25˚C
Input Offset Current
LM124A
Conditions
Min
IIN(+) or IIN(−), VCM = 0V,
LM224A
Typ
Max
1
Min
LM324A
Typ
Max
2
1
20
50
2
10
Min
Units
Typ
Max
3
2
3
mV
40
80
45
100
nA
2
15
5
30
nA
V+−1.5
V
TA = 25˚C
Input Common-Mode
V+ = 30V, (LM2902, V+ = 26V),
Voltage Range (Note 10)
TA = 25˚C
Supply Current
V+−1.5
0
V+−1.5
0
0
Over Full Temperature Range
RL = ∞ On All Op Amps
mA
V+ = 30V (LM2902 V+ = 26V)
V+ = 5V
Large Signal
V+ = 15V, RL≥ 2kΩ,
Voltage Gain
(VO = 1V to 11V), TA = 25˚C
Common-Mode
DC, VCM = 0V to V+ − 1.5V,
Rejection Ratio
TA = 25˚C
3
1.5
3
0.7
1.2
1.5
3
0.7
1.2
1.5
3
0.7
1.2
50
100
50
100
25
100
V/mV
70
85
70
85
65
85
dB
www.national.com
LM124/LM224/LM324/LM2902
Electrical Characteristics
(Continued)
V+ = +5.0V, (Note 7), unless otherwise stated
Parameter
LM124A
Conditions
Power Supply
V+ = 5V to 30V
Rejection Ratio
(LM2902, V+ = 5V to 26V),
Min
Typ
65
100
LM224A
Max
Min
Typ
65
100
LM324A
Max
Max
Units
Min
Typ
65
100
dB
−120
dB
TA = 25˚C
Amplifier-to-Amplifier
f = 1 kHz to 20 kHz, TA = 25˚C
Coupling (Note 11)
(Input Referred)
Output Current
Source
−120
VIN+ = 1V, VIN− = 0V,
−120
20
40
20
40
20
40
10
20
10
20
10
20
12
50
12
50
12
50
V+ = 15V, VO = 2V, TA = 25˚C
Sink
mA
VIN− = 1V, VIN+ = 0V,
V+ = 15V, VO = 2V, TA = 25˚C
VIN− = 1V, VIN+ = 0V,
µA
V+ = 15V, VO = 200 mV, TA = 25˚C
Short Circuit to Ground
(Note 5) V+ = 15V, TA = 25˚C
Input Offset Voltage
(Note 8)
VOS Drift
RS = 0Ω
40
IIN(+) − IIN(−), VCM = 0V
IOS Drift
RS = 0Ω
Input Bias Current
IIN(+) or IIN(−)
Input Common-Mode
V+ = +30V
Voltage Range (Note 10)
(LM2902, V+ = 26V)
Large Signal
V+ = +15V (VOSwing = 1V to 11V)
Output Voltage
Swing
Output Current
60
7
20
10
200
40
7
20
10
200
40
100
V+−2
0
25
25
15
26
26
26
(LM2902, V+ = 26V)
RL = 10 kΩ
27
28
VIN+ = +1V,
10
20
V+ = 5V, RL = 10 kΩ
Source
VO = 2V
5
mV
7
30
µV/˚C
75
nA
10
300
pA/˚C
200
nA
V+−2
V
40
RL = 2 kΩ
27
28
10
20
20
5
V/mV
V
27
28
10
20
20
5
20
VIN− = 0V,
V+ = 15V
mV
mA
−
Sink
mA
5
0
V+ = 30V
VOL
60
30
100
V+−2
0
40
4
30
RL ≥ 2 kΩ
VOH
40
4
Input Offset Current
Voltage Gain
60
VIN = +1V,
10
15
5
8
5
8
VIN+ = 0V,
V+ = 15V
Electrical Characteristics
V+ = +5.0V, (Note 7), unless otherwise stated
Parameter
Input Offset Voltage
(Note 8) TA = 25˚C
Input Bias Current
IIN(+) or IIN(−), VCM = 0V,
(Note 9)
TA = 25˚C
Input Offset Current
LM124/LM224
Conditions
Min
IIN(+) or IIN(−), VCM = 0V,
Typ
Max
2
LM324
Min
LM2902
Typ
Max
5
2
45
150
3
30
Min
Units
Typ
Max
7
2
7
mV
45
250
45
250
nA
5
50
5
50
nA
V+−1.5
V
TA = 25˚C
Input Common-Mode
V+ = 30V, (LM2902, V+ = 26V),
Voltage Range (Note 10)
TA = 25˚C
Supply Current
V+−1.5
0
V+−1.5
0
0
Over Full Temperature Range
RL = ∞ On All Op Amps
mA
V+ = 30V (LM2902 V+ = 26V)
V+ = 5V
Large Signal
V+ = 15V, RL≥ 2kΩ,
Voltage Gain
(VO = 1V to 11V), TA = 25˚C
Common-Mode
DC, VCM = 0V to V+ − 1.5V,
Rejection Ratio
TA = 25˚C
Power Supply
V+ = 5V to 30V
Rejection Ratio
(LM2902, V+ = 5V to 26V),
www.national.com
4
1.5
3
0.7
1.2
1.5
3
0.7
1.2
1.5
3
0.7
1.2
50
100
25
100
25
100
V/mV
70
85
65
85
50
70
dB
65
100
65
100
50
100
dB
(Continued)
V+ = +5.0V, (Note 7), unless otherwise stated
Parameter
LM124/LM224
Conditions
Min
Typ
Max
LM324
Min
Typ
LM2902
Max
Min
Typ
Max
Units
TA = 25˚C
Amplifier-to-Amplifier
f = 1 kHz to 20 kHz, TA = 25˚C
Coupling (Note 11)
(Input Referred)
Output Current
Source
−120
VIN+ = 1V, VIN− = 0V,
−120
−120
20
40
20
40
20
40
10
20
10
20
10
20
12
50
12
50
12
50
dB
V+ = 15V, VO = 2V, TA = 25˚C
Sink
mA
VIN− = 1V, VIN+ = 0V,
V+ = 15V, VO = 2V, TA = 25˚C
VIN− = 1V, VIN+ = 0V,
µA
V+ = 15V, VO = 200 mV, TA = 25˚C
Short Circuit to Ground
(Note 5) V+ = 15V, TA = 25˚C
Input Offset Voltage
(Note 8)
VOS Drift
RS = 0Ω
40
IIN(+) − IIN(−), VCM = 0V
RS = 0Ω
Input Bias Current
IIN(+) or IIN(−)
Input Common-Mode
V+ = +30V
Voltage Range (Note 10)
(LM2902, V+ = 26V)
Large Signal
V+ = +15V (VOSwing = 1V to 11V)
Swing
Output Current
40
10
150
45
10
300
V+−2
500
V+−2
40
0
25
15
15
V+ = 30V
RL = 2 kΩ
26
26
22
(LM2902, V+ = 26V)
RL = 10 kΩ
27
28
VIN+ = +1V,
10
20
VOL
V+ = 5V, RL = 10 kΩ
Source
VO = 2V
5
27
28
10
20
20
5
200
nA
pA/˚C
500
nA
V+−2
V
V
24
10
20
5
100
VIN− = 0V,
V+ = 15V
Sink
mV
V/mV
23
20
mA
µV/˚C
10
40
0
60
7
100
0
40
7
10
RL ≥ 2 kΩ
VOH
60
9
7
IOS Drift
Output Voltage
40
7
Input Offset Current
Voltage Gain
60
mV
mA
−
VIN = +1V,
5
8
5
8
5
8
VIN+ = 0V,
V+ = 15V
Note 4: For operating at high temperatures, the LM324/LM324A/LM2902 must be derated based on a +125˚C maximum junction temperature and a thermal resistance of 88˚C/W which applies for the device soldered in a printed circuit board, operating in a still air ambient. The LM224/LM224A and LM124/LM124A can be derated based on a +150˚C maximum junction temperature. The dissipation is the total of all four amplifiers — use external resistors, where possible, to allow the amplifier to saturate of to reduce the power which is dissipated in the integrated circuit.
Note 5: Short circuits from the output to V+ can cause excessive heating and eventual destruction. When considering short circuits to ground, the maximum output
current is approximately 40 mA independent of the magnitude of V+. At values of supply voltage in excess of +15V, continuous short-circuits can exceed the power
dissipation ratings and cause eventual destruction. Destructive dissipation can result from simultaneous shorts on all amplifiers.
Note 6: This input current will only exist when the voltage at any of the input leads is driven negative. It is due to the collector-base junction of the input PNP transistors becoming forward biased and thereby acting as input diode clamps. In addition to this diode action, there is also lateral NPN parasitic transistor action on the
IC chip. This transistor action can cause the output voltages of the op amps to go to the V+voltage level (or to ground for a large overdrive) for the time duration that
an input is driven negative. This is not destructive and normal output states will re-establish when the input voltage, which was negative, again returns to a value
greater than −0.3V (at 25˚C).
Note 7: These specifications are limited to −55˚C ≤ TA ≤ +125˚C for the LM124/LM124A. With the LM224/LM224A, all temperature specifications are limited to −25˚C
≤ TA ≤ +85˚C, the LM324/LM324A temperature specifications are limited to 0˚C ≤ TA ≤ +70˚C, and the LM2902 specifications are limited to −40˚C ≤ TA ≤ +85˚C.
Note 8: VO . 1.4V, RS = 0Ω with V+ from 5V to 30V; and over the full input common-mode range (0V to V+ − 1.5V) for LM2902, V+ from 5V to 26V.
Note 9: The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output so
no loading change exists on the input lines.
Note 10: The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V (at 25˚C). The upper end of the
common-mode voltage range is V+ − 1.5V (at 25˚C), but either or both inputs can go to +32V without damage (+26V for LM2902), independent of the magnitude of
V+.
Note 11: Due to proximity of external components, insure that coupling is not originating via stray capacitance between these external parts. This typically can be
detected as this type of capacitance increases at higher frequencies.
Note 12: Refer to RETS124AX for LM124A military specifications and refer to RETS124X for LM124 military specifications.
Note 13: Human body model, 1.5 kΩ in series with 100 pF.
5
www.national.com
LM124/LM224/LM324/LM2902
Electrical Characteristics
LM124/LM224/LM324/LM2902
Typical Performance Characteristics
Input Voltage Range
Input Current
DS009299-34
Supply Current
DS009299-35
Voltage Gain
DS009299-36
DS009299-37
Open Loop Frequency
Response
Common Mode Rejection
Ratio
DS009299-38
DS009299-39
www.national.com
6
(Continued)
Voltage Follower Pulse
Response
Voltage Follower Pulse
Response (Small Signal)
DS009299-40
Large Signal Frequency
Response
LM124/LM224/LM324/LM2902
Typical Performance Characteristics
DS009299-41
Output Characteristics
Current Sourcing
DS009299-42
Output Characteristics
Current Sinking
DS009299-43
Current Limiting
DS009299-45
DS009299-44
7
www.national.com
LM124/LM224/LM324/LM2902
Typical Performance Characteristics
(Continued)
Input Current (LM2902 only)
Voltage Gain (LM2902 only)
DS009299-46
DS009299-47
Application Hints
Where the load is directly coupled, as in dc applications,
there is no crossover distortion.
Capacitive loads which are applied directly to the output of
the amplifier reduce the loop stability margin. Values of
50 pF can be accommodated using the worst-case
non-inverting unity gain connection. Large closed loop gains
or resistive isolation should be used if larger load capacitance must be driven by the amplifier.
The bias network of the LM124 establishes a drain current
which is independent of the magnitude of the power supply
voltage over the range of from 3 VDC to 30 VDC.
Output short circuits either to ground or to the positive power
supply should be of short time duration. Units can be destroyed, not as a result of the short circuit current causing
metal fusing, but rather due to the large increase in IC chip
dissipation which will cause eventual failure due to excessive junction temperatures. Putting direct short-circuits on
more than one amplifier at a time will increase the total IC
power dissipation to destructive levels, if not properly protected with external dissipation limiting resistors in series
with the output leads of the amplifiers. The larger value of
output source current which is available at 25˚C provides a
larger output current capability at elevated temperatures
(see typical performance characteristics) than a standard IC
op amp.
The circuits presented in the section on typical applications
emphasize operation on only a single power supply voltage.
If complementary power supplies are available, all of the
standard op amp circuits can be used. In general, introducing a pseudo-ground (a bias voltage reference of V+/2) will
allow operation above and below this value in single power
supply systems. Many application circuits are shown which
take advantage of the wide input common-mode voltage
range which includes ground. In most cases, input biasing is
not required and input voltages which range to ground can
easily be accommodated.
The LM124 series are op amps which operate with only a
single power supply voltage, have true-differential inputs,
and remain in the linear mode with an input common-mode
voltage of 0 VDC. These amplifiers operate over a wide range
of power supply voltage with little change in performance
characteristics. At 25˚C amplifier operation is possible down
to a minimum supply voltage of 2.3 VDC.
The pinouts of the package have been designed to simplify
PC board layouts. Inverting inputs are adjacent to outputs for
all of the amplifiers and the outputs have also been placed at
the corners of the package (pins 1, 7, 8, and 14).
Precautions should be taken to insure that the power supply
for the integrated circuit never becomes reversed in polarity
or that the unit is not inadvertently installed backwards in a
test socket as an unlimited current surge through the resulting forward diode within the IC could cause fusing of the internal conductors and result in a destroyed unit.
Large differential input voltages can be easily accommodated and, as input differential voltage protection diodes are
not needed, no large input currents result from large differential input voltages. The differential input voltage may be
larger than V+ without damaging the device. Protection
should be provided to prevent the input voltages from going
negative more than −0.3 VDC (at 25˚C). An input clamp diode
with a resistor to the IC input terminal can be used.
To reduce the power supply drain, the amplifiers have a
class A output stage for small signal levels which converts to
class B in a large signal mode. This allows the amplifiers to
both source and sink large output currents. Therefore both
NPN and PNP external current boost transistors can be used
to extend the power capability of the basic amplifiers. The
output voltage needs to raise approximately 1 diode drop
above ground to bias the on-chip vertical PNP transistor for
output current sinking applications.
For ac applications, where the load is capacitively coupled to
the output of the amplifier, a resistor should be used, from
the output of the amplifier to ground to increase the class A
bias current and prevent crossover distortion.
www.national.com
8
LM124/LM224/LM324/LM2902
Typical Single-Supply Applications
(V+ = 5.0 VDC)
Non-Inverting DC Gain (0V Input = 0V Output)
DS009299-5
*R not needed due to temperature independent IIN
DC Summing Amplifier
(VIN’S ≥ 0 VDC and VO ≥ VDC)
Power Amplifier
DS009299-7
DS009299-6
Where: V0 = V1 + V2 − V3 − V4
(V1 + V2) ≥ (V3 + V4) to keep VO
V0 = 0 VDC for VIN = 0 VDC
AV = 10
> 0 VDC
9
www.national.com
LM124/LM224/LM324/LM2902
Typical Single-Supply Applications
(V+ = 5.0 VDC) (Continued)
LED Driver
“BI-QUAD” RC Active Bandpass Filter
DS009299-8
DS009299-9
fo = 1 kHz
Q = 50
AV = 100 (40 dB)
Fixed Current Sources
Lamp Driver
DS009299-11
DS009299-10
www.national.com
10
LM124/LM224/LM324/LM2902
Typical Single-Supply Applications
(V+ = 5.0 VDC) (Continued)
Current Monitor
Driving TTL
DS009299-13
DS009299-12
*(Increase R1 for IL small)
Voltage Follower
Pulse Generator
DS009299-14
DS009299-15
11
www.national.com
LM124/LM224/LM324/LM2902
Typical Single-Supply Applications
(V+ = 5.0 VDC) (Continued)
Squarewave Oscillator
Pulse Generator
DS009299-16
DS009299-17
High Compliance Current Sink
DS009299-18
IO = 1 amp/volt VIN
(Increase RE for Io small)
www.national.com
12
LM124/LM224/LM324/LM2902
Typical Single-Supply Applications
(V+ = 5.0 VDC) (Continued)
Low Drift Peak Detector
DS009299-19
Comparator with Hysteresis
Ground Referencing a Differential Input Signal
DS009299-20
DS009299-21
VO = VR
13
www.national.com
LM124/LM224/LM324/LM2902
Typical Single-Supply Applications
(V+ = 5.0 VDC) (Continued)
Voltage Controlled Oscillator Circuit
DS009299-22
*Wide control voltage range: 0 VDC ≤ VC ≤ 2 (V+ −1.5 VDC)
Photo Voltaic-Cell Amplifier
DS009299-23
AC Coupled Inverting Amplifier
DS009299-24
www.national.com
14
LM124/LM224/LM324/LM2902
Typical Single-Supply Applications
(V+ = 5.0 VDC) (Continued)
AC Coupled Non-Inverting Amplifier
DS009299-25
DC Coupled Low-Pass RC Active Filter
DS009299-26
fO = 1 kHz
Q=1
AV = 2
15
www.national.com
LM124/LM224/LM324/LM2902
Typical Single-Supply Applications
(V+ = 5.0 VDC) (Continued)
High Input Z, DC Differential Amplifier
DS009299-27
High Input Z Adjustable-Gain
DC Instrumentation Amplifier
DS009299-28
www.national.com
16
LM124/LM224/LM324/LM2902
Typical Single-Supply Applications
(V+ = 5.0 VDC) (Continued)
Using Symmetrical Amplifiers to
Reduce Input Current (General Concept)
Bridge Current Amplifier
DS009299-30
DS009299-29
Bandpass Active Filter
DS009299-31
fO = 1 kHz
Q = 25
17
www.national.com
LM124/LM224/LM324/LM2902
Physical Dimensions
inches (millimeters) unless otherwise noted
Ceramic Dual-In-Line Package (J)
Order Number JL124ABCA, JL124BCA, JL124ASCA, JL124SCA, LM124J,
LM124AJ, LM124AJ/883, LM124J/883, LM224J, LM224AJ or LM324J
NS Package Number J14A
MX S.O. Package (M)
Order Number LM324M, LM324MX, LM324AM, LM324AMX, LM2902M or LM2902MX
NS Package Number M14A
www.national.com
18
LM124/LM224/LM324/LM2902
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
Molded Dual-In-Line Package (N)
Order Number LM324N, LM324AN or LM2902N
NS Package Number N14A
Ceramic Flatpak Package
Order Number JL124ABDA, JL124ABZA, JL124ASDA, JL124BDA, JL124BZA,
JL124SDA, LM124AW/883, LM124AWG/883, LM124W/883 or LM124WG/883
NS Package Number W14B
19
www.national.com
LM124/LM224/LM324/LM2902 Low Power Quad Operational Amplifiers
Physical Dimensions
inches (millimeters) unless otherwise noted (Continued)
14-Pin TSSOP
Order NumberLM324MT or LM324MTX
NS Package Number MTC14
LIFE SUPPORT POLICY
NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL
COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or
systems which, (a) are intended for surgical implant
into the body, or (b) support or sustain life, and
whose failure to perform when properly used in
accordance with instructions for use provided in the
labeling, can be reasonably expected to result in a
significant injury to the user.
National Semiconductor
Corporation
Americas
Tel: 1-800-272-9959
Fax: 1-800-737-7018
Email: [email protected]
www.national.com
National Semiconductor
Europe
Fax: +49 (0) 180-530 85 86
Email: [email protected]
Deutsch Tel: +49 (0) 69 9508 6208
English Tel: +44 (0) 870 24 0 2171
Français Tel: +33 (0) 1 41 91 8790
2. A critical component is any component of a life
support device or system whose failure to perform
can be reasonably expected to cause the failure of
the life support device or system, or to affect its
safety or effectiveness.
National Semiconductor
Asia Pacific Customer
Response Group
Tel: 65-2544466
Fax: 65-2504466
Email: [email protected]
National Semiconductor
Japan Ltd.
Tel: 81-3-5639-7560
Fax: 81-3-5639-7507
National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.
1/2 PAGE
HTP-8230
EXPLODED VIEW PARTS LIST
NOTE : THE COMPONENTS IDENTIFIED BY THE MARK
! ARE CRITICAL FOR RISK OF FIRE AND
ELECTRIC SHOCK. REPLACE ONLY WITH PART
NUMBER SPECIFIED.
REF. NO.
EXPLODED
PART NAME
SKW-8230 : POWERED SUBWOOFER
SP01
CABINET ASS'Y
DESCRIPTION
Q'TY PART NO.
MARK
SKW-8230
1
ANK8S404S-BM10
EXPLODED
SP02
PLASTIC FOOT
D87.5 x D37.5 x H50 HIPS
4
BPE8000040001
EXPLODED
SP03
STAND BOARD
F2905-GW
1
ANF860005-BM10
EXPLODED
SP04
LOGO PLATE
SKW-8230 / ONKYO NAME PLATE
1
BPL800150-0001
EXPLODED
SP05
WOOD SCREW
8 x 4 x L75 PAN HEAD (FOR FOOT)
8
NST8550514750
EXPLODED
SP06
WOOD SCREW
4STT+20A (FOR AMPLIFIER / SP)
18
837440204
EXPLODED
SP08
WOOFER SPEAKER
20cm 4ohm 50W
1
W20178A
EXPLODED
A01
REAR PANEL
"SKW-8230" SPCC 190 x 120 x T2.0mm
1
GSE400175-2006
EXPLODED
A02
AC CORD
LINE CORD 2P 1800mm BLK POLARIZE
1
VPA0040120010
!
EXPLODED
A03
BUSHING
AC LINE BUSHING
1
DBU001002-0011
!
EXPLODED
A04
POWER TRANSFORMER
DC30V, DC2.3A, 120V / 60Hz 100W
1
TTI1120010120
!
EXPLODED
A05
SCREW
M4.0 x P0.7 x L25mm (FOR TRANS)
4
HSD1431033250
EXPLODED
F902
FUSE
4A / 250V SLOW WALT
1
KSA0204000011
!
EXPLODED
F903
FUSE
4A / 250V SLOW WALT
1
KSA0204000011
!
EXPLODED
U01
MAIN PC BOARD ASS'Y
MAIN PC BOARD ASS'Y
1
APE4012115001
EXPLODED
EXPLODED
<Note>
EXPLODED
U01 : MAIN PC BOARD ASS'Y = PCB BRACKET + HEAT SINK + ALL PARTS FOR MAIN PC BOARD
EXPLODED
U02
INPUT PC BOARD ASS'Y
INPUT PC BOARD ASS'Y
EXPLODED
<Note>
EXPLODED
U02 : INPUT PC BOARD ASS'Y = INPUT PC BOARD with RCA JACK + CORD ASS'Y
EXPLODED
U03
VR / LED PC BOARD ASS'Y VR / LED PC BOARD ASS'Y
1
APE4012125001
1
APE4012135001
EXPLODED
<Note>
EXPLODED
U03 : VR / LED PC BOARD ASS'Y = VR / LED PC BOARD with VR / LED / CORD ASS'Y etc.
EXPLODED
SKF-8230F : FRONT SPEAKERS (L / R)
SP10
COMPLETE UNIT
EXPLODED
"SKF-8230F (L)"
1
ASL8M404S-BM10
EXPLODED
SP11
BACK LABEL (L)
without serial numbering
1
YLB810006-FL10
EXPLODED
SP12
COMPLETE UNIT
"SKF-8230F (R)"
1
ASL8M404S-BM11
SP13
BACK LABEL (R)
without serial numbering
1
YLB810006-FR10
"SKC-8230C"
1
ASL8C404S-BM10
without serial numbering
1
YLB810006-C010
1
ASL8S404S-BM10
EXPLODED
EXPLODED
EXPLODED
EXPLODED
EXPLODED
EXPLODED
SKC-8230C : CENTER SPEAKER
SP14
COMPLETE UNIT
SP15
BACK LABEL
SKM-8230S : SURROUND SPEAKERS (L / R)
SP16
COMPLETE UNIT
"SKM-8230S (L)"
EXPLODED
SP17
BACK LABEL (L)
without serial numbering
1
YLB810006-SL10
EXPLODED
SP18
COMPLETE UNIT
"SKM-8230S (R)"
1
ASL8S404S-BM11
EXPLODED
SP19
BACK LABEL (R)
without serial numbering
1
YLB810006-SR10
2/2 PAGE
HTP-8230
PRINTED CIRCUIT BOARD PARTS LIST
PWB
PWB
CIRCUIT NO. PART NAME
IC501
POWER IC
DB901
DIODE
DESCRIPTION
IC 15 PIN TDA7293
RS402L 4A 100V
Q'TY PART NO.
1 RHI007293-0001
1
RHD2040100011
MARK
!
HTP-8230
ONKYO CORPORATION
Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN
Tel: 072-831-8023 Fax: 072-831-8124
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