47
WGATE
RFPDSH
Optical
Pick-up
LD
Driver
Write
Strategy
FsDAC
WDAC
IAPC
R160
LPF
&
Gain
WFPDSH
FMON
RWAPC
buffe
r
2.5VREF
Buffer
S/H
B/H
+
-
13
S/H MU
X
AM
P
APCDAC
(REDA/WRDA)
SCLK, SDATA, WDEN
12
9
9
8
10
28
29
126
127
CN101
IC101 (R2S35002))
IC301 (R8J32007)
BCNT
5
6
TCPH
32
134
175
R106
R105
C106
25,26,28
120,121,123
108
C105
DESCRIPTION OF CIRCUIT
1. ALPC (Automatic Laser Power Control) Circuit
1-1. Block Diagram