TA2109F
TA2109F
TOSHIBA Bipolar Linear Integrated Circuit Silicon Monolithic
TA2109F
RF Amplifier for Digital Servo CD System
TA2109F is a 3-beam type PUH compatible RF Amplifier for
Digital Servo to be used in the CD system.
In combination with a CMOS single chip processor
TC9432AF/TC9462F a CD system can be composed very simply.
Features
·
Built in amplifier for reference (VREF, 2 VREF) supply.
·
Built in Auto Laser Power Control circuit.
·
Built in RF amplifier.
·
Built in focus error amp and tracking error amp.
·
Built in sub-beam adder signal amplifier.
·
Capable of tracking balance control with TC9432AF/TC9462F.
·
Capable of RF gain adjustment circuit with TC9432AF/TC9462F.
·
Built in signal amplifier for track counter.
·
Capable of 4 times speed operation.
·
24 pin mini flat package.
Weight: 0.3 g (typ.)
1
http://www.tosharp.cn
2002-08-06
TA2109F
Block Diagram
SEL
LDC
SW1
SW2
SW3
L
ON
OFF
OFF
HiZ
OFF
ON
ON
H
OFF
ON
ON
2
http://www.tosharp.cn
2002-08-06
TA2109F
Pin Function
Pin
No.
Symbol
I/O
1
VCC
―
2
FNI
I
Main beam I-V amp input terminal
Connected to pin diode A, C
3
FPI
I
Main beam I-V amp input terminal
Connected to pin diode B, D
4
TPI
I
Sub beam I-V amp input terminal
Connected to pin diode F
5
TNI
I
Sub beam I-V amp input terminal
Connected to pin diode E
6
MDI
I
Monitor photo diode amp input terminal
Connected to monitor photo diode
7
LDO
O
Laser diode amp output terminal
Connected to laser control circuit
8
SEL
I
Laser diode control signal input terminal
and APC circuit ON/OFF control signal input terminal
3 signal input
(VCC, HiZ, GND)
9
TEB
I
Tracking error balance adjustment signal input terminal Controlled 3 signal input
by 3 PWM signal (PWM carrier = 88.2 kHz)
(2 VREF, VR, GND)
10
2VRO
O
Reference voltage (2 VREF) output terminal
2 VREF = 4.2 V when VCC = 5 V
11
TEN
I
TE amp negative input terminal
12
TEO
O
TE error signal output terminal
―
13
SBAD
O
Sub beam adder signal output terminal
―
14
FEO
O
Focus error signal output terminal
―
15
FEN
I
FE amp negative input terminal
16
VRO
O
Reference voltage (VREF) output terminal
VREF = 2.1 V when VCC = 5 V
―
17
RFRP
O
Track count signal output terminal
―
18
RFIS
I
RFRP detect circuit input terminal
19
RFGO
O
RF gain signal output terminal
20
RFGC
I
RF amplitude adjustment control signal input terminal
Controlled by 3 PWM signal (PWM carrier = 88.2 kHz)
3 signal input
(2 VREF, VR, GND)
21
AGCI
I
RF signal amplitude adjustment amp input terminal
Connected to RFO through
condenser
22
RFO
O
RF signal output terminal
―
23
GND
―
Ground terminal
―
24
RFN
I
RF amp negative input terminal
―
Functional Description
Remark
Power supply input terminal
―
―
Connected to TEO through
feedback register
Connected to FEO through
feedback register
Connected to RFO through
condenser
―
Maximum Ratings (Ta = 25°C)
Characteristics
Symbol
Rating
Unit
VCC
8
V
Power dissipation
PD
400
mW
Operating temperature
Topr
−40~85
°C
Storage temperature
Tstg
−55~150
°C
Power supply voltage
3
http://www.tosharp.cn
2002-08-06
TA2109F
Electrical Characteristics (unless otherwise specified, VCC = 5 V, Ta = 25°C)
AC Characteristics
Symbol
Test
Circuit
Test Condition
Min
Typ.
Max
Unit
Assured supply voltage
VCC
1
―
4.5
5.0
5.5
V
Power supply voltage
ICC
1
18
24
30
mA
2VR
1
4.0
4.2
4.4
V
IOH2
1
∆V = −0.1 V
3.0
―
―
mA
IOL2
1
∆V = +0.1 V
0.1
―
―
mA
VR
1
2.0
2.1
2.2
V
∆VR
1
2 × VR/2 VR −1
−3.0
0.0
+3.0
%
IOH1
1
∆V = −0.1 V
5.0
―
―
mA
IOL1
1
∆V = +0.1 V
5.0
―
―
mA
Transfer resistance
RT
1
f = 100 kHz, RNF = 22 kΩ
117
130
143
kΩ
Frequency characteristic
fc
1
−3dB point
―
5.0
―
MHz
Characteristics
Power
supply
Reference voltage
Reference
voltage:
Output current
2VREF
Input current
Reference voltage
Reference Reference voltage limit
voltage:
Output current
VREF
Input current
Output slew rate
RF1
FPI (FNI)
→ RFO
RF2
(AGC)
RFO
→ RFGO
―
SR
1
CRFO = 20 pF
10
20
―
V/µs
THD
1
f = 100 kHz, VRFO = 1.2 Vp-p
―
−40
―
dB
Upper limit output voltage
VOH
1
GND reference
3.6
―
―
V
Lower limit output voltage
VOL
1
GND reference
―
―
0.7
V
Permissive load
resistance
RLM
1
10
―
―
kΩ
Lower limit gain voltage
GV1
1
f = 100 kHz, RFGC = 0.6 V
0.66
0.73
0.80
V/V
Upper limit gain voltage
GV2
1
f = 100 kHz, RFGC = 3.6 V
1.60
1.75
1.90
V/V
Frequency characteristic
fc
1
−3dB point
―
5.0
―
MHz
Output slew rate
SR
1
CRFGO = 20 pF
10
20
―
V/µs
Upper limit output voltage
VOH
1
GND reference
3.6
―
―
V
Lower limit output voltage
VOL
1
GND reference
―
―
0.7
V
Noise/Distortion rate
THD
1
f = 100 kHz, VRFGO = 1.2 Vp-p
―
−40
―
dB
Permissive load
resistance
RLM
1
―
10
―
―
kΩ
Gv
1
f = 1 kHz
―
200
―
V/V
VMDI
1
VLDO = 3.5 VDC
170
178
192
mV
VLDOP
1
LDC = L, VCC reference,
SEL = L
−0.7
―
―
V
II
1
VMDI = 178 mV
−200
―
+200
nA
Transfer resistance
RT
1
f = 1 kHz, RNF = 39 kΩ
198
220
242
kΩ
Gain balance
GB
1
−1.0
―
+1.0
dB
Operation reference
voltage
LD Off voltage
Input bias current
Frequency characteristic
FE
FNI (FPI)
→ FEO
―
Noise/Distortion rate
Gain voltage
APC
MDI
→ LDO
SEL = VCC
―
―
fc
1
−3dB point
―
22
―
kHz
Output offset voltage
VOS
1
VR reference, input open
−30
―
+30
mV
Noise/distortion rate
THD
1
f = 1 kHz, VFEO = 2.4 Vp-p
―
−40
―
dB
Upper limit output voltage
VOH
1
GND reference
3.8
―
―
V
Lower limit output voltage
VOL
1
GND reference
―
―
0.5
V
Permissive load
resistance
RLM
1
10
―
―
kΩ
―
4
http://www.tosharp.cn
2002-08-06
TA2109F
Characteristics
Transfer resistance
Symbol
Test
Circuit
RT
1
∆RT
1
Transfer resistance range
Max transfer resistance
Min transfer resistance
Gain balance
TE
TPI (TNI)
→ TEO
Max
Unit
f = 1 kHz, TEB = VR,
RNF = 33 kΩ
1.53
1.70
1.87
MΩ
TEB = VR reference
TEB = GND
TEB = 2 VR
35
45
55
%
−55
−45
−35
%
−1.0
―
+1.0
dB
―
44
―
kHz
―
240
―
kHz
TEB = VR
Cut-Off frequency 1
fc1
1
RNF = 33 kΩ
Cut-Off frequency 2
fc2
Frequency characteristic
Output offset voltage
VOS
1
VR reference, input open
−80
―
+80
mV
Noise/Distortion rate
THD
1
f = 1 kHz, VTEO = 2.0 Vp-p
―
−40
―
dB
Upper limit output voltage
VOH
1
GND reference
3.8
―
―
V
Lower limit output voltage
VOL
1
GND reference
―
―
0.5
V
Permissive load
resistance
RLM
1
10
―
―
kΩ
RT
1
416
520
624
kΩ
―
f = 1 kHz, TEB = VR
fc
1
−3dB point
―
44
―
kHz
Noise/Distortion rate
THD
1
f = 1 kHz, VSBAD = 1.5 Vp-p
―
−40
―
dB
Operation reference
voltage
VOPR
1
TNI/TPI = VR, VR reference
−1.1
−1.0
−0.9
TNI/TPI = HiZ, VR reference
−1.2
−1.1
−1.0
Upper limit output voltage
VOH
1
GND reference
3.8
―
―
V
Permissive load
resistance
RLM
1
―
10
―
―
kΩ
Gain voltage
Gv
1
―
1.37
1.46
1.54
V/V
Detection frequency
characteristic
fc
―
SEL = VCC
―
100
―
kHz
Operation reference
voltage 1
VOPR1
1
VR reference, No signal
−1.1
−1.0
−0.9
V
Operation reference
voltage 2
VOPR2
1
VR reference, 700 kHz,
1.2 Vp-p
+0.65
+0.75
+0.85
V
RLM
1
10
―
―
kΩ
Permissive load
resistance
Note:
Typ.
1
Frequency characteristic
RFRP
RFIS
→ RFRP
Min
GB
Transfer resistance
SBAD
TPI (TNI)
→ SBAD
Test Condition
―
V
If the IC is used abnormally (ex. wrongly mounted), it may be damaged or destroyed.
5
http://www.tosharp.cn
2002-08-06
http://www.tosharp.cn
Test Circuit
6
2002-08-06
TA2109F
http://www.tosharp.cn
Application Circuit
7
2002-08-06
TA2109F
TA2109F
Package Dimensions
Weight: 0.3 g (typ.)
8
http://www.tosharp.cn
2002-08-06
TA2109F
RESTRICTIONS ON PRODUCT USE
000707EBA
· TOSHIBA is continually working to improve the quality and reliability of its products. Nevertheless, semiconductor
devices in general can malfunction or fail due to their inherent electrical sensitivity and vulnerability to physical
stress. It is the responsibility of the buyer, when utilizing TOSHIBA products, to comply with the standards of
safety in making a safe design for the entire system, and to avoid situations in which a malfunction or failure of
such TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified operating ranges as
set forth in the most recent TOSHIBA products specifications. Also, please keep in mind the precautions and
conditions set forth in the “Handling Guide for Semiconductor Devices,” or “TOSHIBA Semiconductor Reliability
Handbook” etc..
· The TOSHIBA products listed in this document are intended for usage in general electronics applications
(computer, personal equipment, office equipment, measuring equipment, industrial robotics, domestic appliances,
etc.). These TOSHIBA products are neither intended nor warranted for usage in equipment that requires
extraordinarily high quality and/or reliability or a malfunction or failure of which may cause loss of human life or
bodily injury (“Unintended Usage”). Unintended Usage include atomic energy control instruments, airplane or
spaceship instruments, transportation instruments, traffic signal instruments, combustion control instruments,
medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA products listed in this
document shall be made at the customer’s own risk.
· The products described in this document are subject to the foreign exchange and foreign trade laws.
· The information contained herein is presented only as a guide for the applications of our products. No
responsibility is assumed by TOSHIBA CORPORATION for any infringements of intellectual property or other
rights of the third parties which may result from its use. No license is granted by implication or otherwise under
any intellectual property or other rights of TOSHIBA CORPORATION or others.
· The information contained herein is subject to change without notice.
9
http://www.tosharp.cn
2002-08-06
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement