ta2157f TOSHIBA Semiconductor CORPORATION, ta2157f Datasheet - Page 2

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

Block Diagram
RFRPIN
AGCIN
GVSW
RFGO
RFGC
RFRP
GND
VRO
FEO
RFO
RFN
FEN
13
14
15
16
17
18
19
20
21
22
23
24
V
GND
V
PIN
CTRL
HiZ
CC
AGC Amp.
20 kW
20 kW
3 kW
3 kW
20 kW 20 kW
BOTTOM
PEAK
15 kW
(APC SW)
(LDO = H)
APC OFF
12 kW
12 kW
50 mA
APC ON
APC ON
SEL
180 kW
40 pF
(TE BAL)
-50%
+50%
TEB
0%
20 kW
20 kW
2
240 kW
240 kW
15 pF
15 pF
PEAK
60 kW
60 kW
40 kW
50 kW
2 kW
(AGC Gain)
40 mA
20 kW
RFGC
+12dB
+6dB
0dB
50 kW
14 kW
94 kW
94 kW
22 kW
22 kW
15 kW
k ´0.5
1 ´0.5
1.75 kW
2 kW
1 kW
´2
´2
CD-RW mode
Normal mode
Normal mode
(+12dB)
12
11
10
GVSW
9
8
7
6
5
4
3
2
1
(0dB)
(0dB)
RFDC
TEO
TEN
TEBC
SEL
LDO
MDI
TNI
TPI
FPI
FNI
V
CC
TA2157F/FN
2002-11-21