ta2157f TOSHIBA Semiconductor CORPORATION, ta2157f Datasheet - Page 3

• Manufacturer Part Number: ta2157f
• Description: Digital Servo Head Amp For Cd System
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Pin Function
No.
Pin
1
2
3
4
5
6
7
8
Symbol
LDO
V
MDI
SEL
FNI
FPI
TPI
TNI
CC
I/O
¾
O
I
I
I
I
I
I
3.3 V power supply pin
Main-beam amp input pin
Main-beam amp input pin
Sub-beam amp input pin
Sub-beam amp input pin
Monitor photo diode amp input pin
Laser diode amp output pin
APC circuit ON/OFF control signal, laser diode
(LDO) control signal input or bottom/peak
detection frequency change pin.
GND
SEL
V
HiZ
CC
Circuit
APC
OFF
ON
ON
Function Description
Connected to V
through 1 kW resistor
Control signal output
Control signal output
LDO
CC
3
ON: LD-OFF
OFF: LD-ON
2
3
4
5
6
7
8
1.75 kW
100 W
30 kW
1 kW
1 kW
Internal Circuit
ON/OFF
¾
22 kW
VC
VC
TA2157F/FN
50 kW
2002-11-21
14 kW