Denon S-301 Service Manual page 73

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PCM1802 (IC803; 1U-3683)
block diagram
V IN L
V REF1
V REF 2
V IN R
TE
L 13942296513
PCM1803 (IC804: 1U-3683)
V L
IN
V 1
REF
V 2
REF
V R
IN
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V L 1
IN
V R 2
IN
3
V 1
REF
V 2 4
REF
V 5
CC
AGND 6
PDWN 7
BYPAS 8
FSYNC 9
LRCK 10
5 th Order
Single-End
/Differential Delta-Sigma
Converter Modulator
Reference
5 th Order
Single-End
/Differential Delta-Sigma
Converter Modulator
Power Supply
V CC AGND DGND
V L
IN
V R
IN
V 1
REF
V 2
REF
V
CC
AGND
PDWN
BYPAS
TEST
LRCK
BLOCK DIAGRAM
DeltaœSigma
Modulator
Reference
DeltaœSigma
Modulator
x ao
y
Power Supply
i
V AGND DGND
CC
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8
PCM1802
(TOP VIEW)
20 MODE1
19 MODE0
18
FMT1
17 FMT0
16 OSR
15 SCKI
14 V
DD
13 DGND
12 DOUT
11 BCK
1/64 ( 1/128)
Decimation
Filter
with
DC Cut Filter
Clock and Timing Control
Q Q
V DD
3 6 7 1 3
1 20
MODE1
2 19
MODE0
3 18
FMT1
4 17 FMT0
5 16 OSR
6 15 SCKI
7 14 V
DD
8 13 DGND
9 12 DOUT
BCK
10 11
ψ1/64 , ψ1/128
Decimation
Filter
With
HighœPass Filter
u163
Clock and Timing Control
.
V
DD
73
2 9 9 4 2 8
BCK
LRCK
FSYNC
Serial
Interface
DOUT
Mode/
FMT0
Format
Control
FMT1
MODE0
MODE1
BYPAS
OSR
PDWN
SCKI
1 5 0 5 8 2 9 9 4
BCK
LRCK
DOUT
Serial
Interface
Mode/
FMT0
Format
Control
FMT1
MODE0
MODE1
BYPAS
m
TEST
OSR
co
PDWN
SCKI
S-301
9 9
2 8 9 9