HA12220 Hitachi Semiconductor, HA12220 Datasheet - Page 5

• Manufacturer Part Number: HA12220
• Description: CD-ROM Drive Head Amplifier IC
• Manufacturer: Hitachi Semiconductor

Pin Description and Equivalent Circuit (cont)
Pin No.
21
22
23
24
25
26
27
Pin Name
DFH
AGCO
AGCF
RFC
VCF
BYPS
V
CC
Equivalent Circuit
—
100k
2k
5k
20k
4k
4k
V
CC
40k
40k
GND
V
CC
5k
4k
Function
Defect envelope hold signal
output
AGC amplifier output
Capacitor connection for AGC
Capacitor connection for AGC
Capacitor connection for
reference voltage ripple filter
Capacitor connection for ripple
filter
V
Rev.1, Apr. 1997, page 5 of 20
CC
HA12220F