ta2157f TOSHIBA Semiconductor CORPORATION, ta2157f Datasheet - Page 4

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

No.
Pin
10
11
12
13
9
Symbol
GVSW
TEBC
RFDC
TEN
TEO
I/O
O
O
I
I
I
Tracking error balance adjustment signal input pin
TEBC input voltage: GND~V
Tracking error signal generation amp
negative-phase input pin
Tracking error signal generation amp output pin.
RF signal peak detection output pin
AGC/FE/TE amp gain change pin
carrier component from PWM signal (3-state
output, PWM carrier = 88.2 kHz) output from
TC94A14F/FA/FB TEBC pin using RC-LPF and
inputting DC.
TC94A14F/FA/FB configures tracking search
system.
Adjusts TE signal balance by eliminating
Combining TEO signal and RFRP signal with
GVSW
GND
V
HiZ
CC
Function Description
CD-RW
Normal
Mode
CC
4
10
11
12
13
9
15 kW
167 W
167 W
500 W
30 kW
Internal Circuit
15 kW
VC
TA2157F/FN
20 kW
VC
2002-11-21