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TA2157FN Datasheet(PDF) 8 Page - Toshiba Semiconductor

Part # TA2157FN
Description  Digital Servo Head Amp for CD System
PDF  14 Pages
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Manufacturer  TOSHIBA [Toshiba Semiconductor]
Direct Link  http://www.semicon.toshiba.co.jp/eng
Logo TOSHIBA - Toshiba Semiconductor

TA2157FN Datasheet(HTML) 8 Page - Toshiba Semiconductor

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TA2157F/FN
2002-11-21
8
Characteristics
Symbol
Test
Circuit
Test Condition
Min
Typ.
Max
Unit
Voltage gain 1
GV1AG
RFGC
= GND
-1.5
-0.5
0.5
Voltage gain 2
GV2AG
RFGC
= HiZ
5.5
6.5
7.5
Voltage gain 3
GV3AG
¾
f
= 1 MHz
RFGC
= VCC
12
13.5
15
dB
Frequency characteristic 1
fC1AG
RFGC
= GND
¾
15
¾
Frequency characteristic 2
fC2AG
RFGC
= HiZ
¾
15
¾
Frequency characteristic 3
fC3AG
¾
-3dB point
RFGC
= VCC
¾
15
¾
MHz
Output slew rate
SRAG
¾
CRFO = 20 pF
¾
25
¾
V/
ms
Upper limit output voltage
VOHAG
2.2
2.4
¾
Lower limit output voltage
VOLAG
¾
GND reference
¾
0.2
0.4
V
AGC
AGCI
® RFGO
Permissive load resistance
RLMAG
¾
¾
5
10
¾
k
W
Transfer resistance 1
(normal mode)
Rt1FE
GVSW
= VCC
127
145
162
Transfer resistance 2
(CD-RW mode)
Rt2FE
¾
f
= 1 kHz
RFIN = 47 kW
RFEFB = 33 kW GVSW = GND
545
620
694
k
W
Gain balance 1
(normal mode)
GB1FE
GVSW
= VCC, DRt1FE
-1
0
+1
Gain balance 2
(CD-RW mode)
GB2FE
¾
GVSW
= GND, DRt2FE
-1
0
+1
dB
Frequency characteristic 1
(normal mode)
fC1FE
GVSW
= VCC
¾
20
¾
Frequency characteristic 2
(CD-RW mode)
fC2FE
¾
-3dB point
RFEFB = 33 kW
GVSW
= GND
¾
20
¾
kHz
Output offset voltage 1
(normal mode)
VOS1FE
GVSW
= VCC
-50
0
+50
Output offset voltage 2
(CD-RW mode)
VOS2FE
¾
VRO reference
FPI/FNI open
GVSW
= GND
-100
0
+100
mV
Upper limit output voltage
VOHFE
2.9
3.1
¾
Lower limit output voltage
VOLFE
¾
GND reference
¾
0.1
0.3
V
FE
FPI (FNI)
® FEO
Permissive load resistance
RLMFE
¾
¾
5
10
¾
k
W



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