Sony PMC-MD55 Service Manual page 65

Personal minidisc system
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– DG Board –
IC603 PCM3003E/T2
24
23
22
21
20
19
POWER
SUPPLY
1
2
IC606 TC7WH74FU (TR12R)
8
7
6
5
S
R
Q
C
D
Q
1
2
3
4
ANALOG
MULTI-LEVEL
LOW-PASS
DELTA-SIGMA
FILTER
MODULATOR
D/A
CONVERTER
ANALOG
MULTI-LEVEL
LOW-PASS
DELTA-SIGMA
FILTER
MODULATOR
DECIMATION
&
A/D
LOW CUT FILTER
CONVERTER
DELTA-SIGMA
MODULATOR
(+) (-)
ANALOG
FRONT-END
REFERENCE
CIRCUIT
3
4
5
18
17
MODE CONTROL
INTERFACE
INTERPOLATION
FILTER
OVERFLOWING
INTERPOLATION
FILTER
OVERFLOWING
SERIAL
INTERFACE
DECIMATION
&
LOW CUT FILTER
DELTA-SIGMA
MODULATOR
(+) (-)
ANALOG
RESET AND
FRONT-END
POWER DOWN
CIRCUIT
6
7
8
– 104 –
16
15
14
13
CLOCK
9
10
11
12

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