– 70 –
• IC Block Diagrams
– BD Board –
IC121
CXD2535CR
SHCK
4
DFCT
3
FOK
2
TEOK
1
75
70
69 68 67 66 65
63 62 61 60
59
58
57
56 55
54
53 52 51
50 DVSS
DIPO
TEST2
MVC1
RAOF
EFMO
49
48
46
45
GFS
43
GTOP
42
RFCK
40
WDCK
39
DVDD
38
XBCK
37
MCLK
36
XTAI
35
XTAO
34
LRCK
33
BCK
32
C2PO
31
DTO
30
DTI
DIDT
28
DODT
27
DOVF
26
WFCK
41
XPLCK
44
74
73
72
71
AVSS
ADRB
ADRT
AVDD
BIA2
ADIO
VC
AUX
FE
ABCD
BOTM
PEAK
FILO
FILI
PCO
CLTV
AVSS
DVDD
DIFO
DIFI
DICV
RFI
BIAS
ASYI
ASYO
DVSS
25
REC
ADER
23
FMCK
22
DOUT
20
SBIOT
SBODT
18
SBOCK
XRST
DQSY
15
SQSY
14
ADSY
13
SENS
12
SRDT
11
XLAT
10
SCLK
9
SWDT
8
DIRC
7
WRPWR
SSTOP
DVSS 100
COUT 99
OFTRK 98
XDCL 97
DCLI 96
DCLO 95
SPFD 94
SPRD 93
SFDR 92
SRDR 91
FS4 90
FRDR 89
DVDD 88
FFDR 87
TFDR 86
TRDR 85
LDDR 84
TS25 83
ADFG
TEST1 81
APC 80
MID 79
TENV 78
TE 77
SE 76
DIN
ANALOG MUX
34 MHz
PLL
A/D
CONVERTER
OP AMP
SERVO DSP
PWM GENERATOR
DIGITAL
CLV
PROCESSOR
OFTRK/DFCT/
FOK/C OUT/
SHCK/TEOK
PROCESSOR
SERVO
CONTROL
CPU I/F
SENS
CONTROL
SERVO AUTO
SEQUENCER
APC COMP./
FILTER
APC PWM
GENERATOR
DIN PLL
(22 MHz)
COMP
ECC
ENCODER/
DECODER
REGISTER
32K RAM
REGISTER
AUDIO
DATA
CONTROL
EFM
MODULATOR
TIMING
GENERATOR
EFM
DIGITAL PLL
EFM SYNC
DETECTOR/
PROTECTOR
TIMING GENERATOR
DIGITAL
AUDIO
IN/OUT
PEAK
DETECT
64
47
EFM
DEMODULATOR
CLOCK
GENERATOR
29
24
21
19
SUBCODE
P~W
PROCESSOR
17
16
ADIP
DEMODULATOR
ADIP
DECODER
6
5
82
TRACKING PWM
FOCUS PWM
SLED PWM
TRACKING SERVO
FOCUS SERVO
SLED SERVO
SUBCODE Q
READER/
GENERATOR