HA12220F Datasheet, PDF (4/20 Pages) Hitachi Semiconductor – CD-ROM Drive Head Amplifier IC

HA12220F
Pin Description and Equivalent Circuit (cont)
Pin No. Pin Name Equivalent Circuit
10
CI
2.5k
11
CO
10k
12
VC
20k
13
XRST
4k
14
CLK
15
DATA
16
XLT
17
FOK
V_CC
20k
18
MIRR
V_CC
10k
19
MIRH
20
DFT
100k
V_CC
20k
Function
FSA amplifier output monitor
Setting FOK reference voltage
Reference voltage output
Reset input
Serial data synchronous clock
input
Serial data input
Serial data latch input
FOK detection signal output
Mirror detection signal output
Mirror envelope hold signal
output
Defect detection signal output
Rev.1, Apr. 1997, page 4 of 20