Datasheet for Ic-dual AF PWR AMP

Datasheet for Ic-dual AF PWR AMP
NTE1675
Integrated Circuit
Dual AF Power Amp, 8.5W
Features:
D Small idling current (20mA/2 channels) enabling prolonged battery life.
D Small dependence of idling current on VCC.
D High power (8.5W typ. X 2).
D High ripple rejection (60dB at steady state). Since filters are arranged in 3 stages (including 1
stage inside IC) to attain satisfactory ripple rejection at transient state, ripple occurring at the
time of motor start can be prevented from mising in.
D Small pop noise at the time of power supply ON/OFF and good starting balance between both
channels (0.6 sec) due to built−in pop noise limiter.
D Pins provided for compensating high frequency response.
D Small residual noise (0.4mV).
D Wide supply voltage range (6 to 24V) easing design of transformer power supply.
D Built−in thermal shutdown circuit.
D Designed so that inverse insertion or short between adjacent pins causes no destruction.
D Channel−to−channel mirror image pin assignment and provision of Pre GND, Power GND
pins enabling stable operation and easing artwork of printed circuit board.
D Minimum number of external parts required (9 pcs. min, 12 pcs. typ)
D Audio muting capability (for automatic music selection, electronic tuner).
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage, VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24V
Maximum Output Current, Iopeak 1 channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A
Allowable Power Dissipation, Pdmax With infinite heat sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15W
Operating Temperature, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20 to +75°C
Storage Temperature, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40 to +150°C
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Recommended Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Load Resistance, RL Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3ohm
Electrical Characteristics
Parameter
Quiescent Current
Voltage Gain
Voltage Gain Difference
Output Power
Total Harmonic Distortion
Input Resistance
Output Noise Voltage
Ripple Rejection
Channel Separation
(TA = 25°C, VCC = 15V, RL = 30Ω (Stereo), f = 1kHz, Rg = 600Ω
unless otherwise specified)
Symbol
ICCO
Test Conditions
Min
Typ
10
20
30
mA
48
50
52
dB
−
−
±1
dB
7.5
8.5
−
W
−
0.3
1.5
%
−
30
−
kΩ
Rg = 0, f = 20Hz to 20kHz, Band−pass filter
−
0.4
1.0
mV
Rg = 10kΩ, f = 20 to 20kHz, Band−pass filter
−
0.6
2.0
mV
Rg=0, fR = 100Hz, VR = 0dBm
50
60
−
dB
Rg = 10kΩ, VO = 0dBm
45
55
−
dB
Stereo
VG
∆VG
Channels 1,2
PO
THD = 10%
THD
VO = 2V
ri
VNO
Rr
ch sep
Pin Connection Diagram
VCC
Bootstrap
Switch Distortion
Output
Phase Compensation
Phase Compensation
N.F.
Input
DC (A)
Pre GND
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
Power GND
Bootstrap
Switch Distortion
Output
Phase Compensation
Phase Compensation
N.F.
Input
DC (B)
TSD Control
.945 (24.0)
11
20
.142 (3.6)
.335 (8.5)
1
.700 (17.78)
10
.602
(15.3)
1.062 (26.9)
.197
(5.0)
.161
(4.0)
.020
(.508)
.118
(2.9)
Typ
Max Unit
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