Sharp CD-XP120 Service Manual page 38

CD-XP120
IC401 VHiMN6627482W: CD Signal Control (MN6627482WA)
V
DD
V
SS
DV
DD1
TIMING
DV
SS1
GENERATOR
/RST
/TEST
PITCH CONTROL
FE
TE
RFENV
TRCRS
VDET
BDO
/RFDET
OFT
VCO
MICRO
COMPUTER
INTERFACE
SERVO
CPU
OUTPUT PORT
D/A
CONVERTER
Figure 38 BLOCK DIAGRAM OF IC
SUBCODE
DSL • PLL VCO
BUFFER
EFM DEMODULATION
SYNC INTERPOLATION
SUBCODE DEMODULATION
CIRC ERROR CORRECTION
DEINTERLEAVE
INTER
POLATION
CLV
SOFT MUTING
SERVO
DIGITAL
ATTENUATION
– 38 –
CD-TEXT
BUFFER
16k
SRAM
DIGITAL
AUDIO
INTERFACE
DIGITAL
DEEMPHSIS
8TIMES
OVER
SAMPLING
DIGITAL FILTER
1 BIT DAC
PWMLOGIC
PWM PWM
(L) (R)
- -
+ +