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