Sony STR-K990 Service Manual page 40

STR-K990
QQ
3 7 63 1515 0
– DIGITAL Board –
IC1401 PCM1803DBR
20 19 18 17
5 th Order
Delta-Sigma
Modulator
TE
L 13942296513 Single-End
/Differential
Converter
1 2 3 4
IC1452 PCM1602APT
RST 37
SCKI 38
SCKO 39
BCK 40
LRCK 41
TEST 42
VDD 43
DGND 44
DATA1 45
DATA2 46
DATA3 47
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ZEROA 48
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40
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Mode/
Serial
Format
Interface
Control
× 1/64 (× 1/128)
Decimation
Filter
with
DC Cut Filter
5 th Order
Delta-Sigma
Modulator
Single-End
Reference
/Differential
Converter
32 31 30
36 35 34 33
FUNCTION
CONTROL
INTERFACE
SYSTEM
SYSTEM
CLOCK
CLOCK
MANAGER
4X/8X ENHANCED
OVER SAMPLING
SERIAL
DIGITAL
INPUT
FILTER
INTERFACE
WITH
MOJULATOR
FUNCTION
CONTROLLER
x ao
y
ZERO DETECT
i
1 2 3 4 5 6 7
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8
Clock and Timing Control
Q Q
3 6 7 1 3
Power Supply
5 6
29 28 27 26 25
OUTPUT AMP
DAC
AND LPF
OUTPUT AMP
DAC
AND LPF
OUTPUT AMP
DAC
AND LPF
MULTI- OUTPUT AMP
DAC
AND LPF
LEVEL
DELTA-
SIGMA
OUTPUT AMP
DAC
AND LPF
OUTPUT AMP
DAC
AND LPF
OUTPUT AMP
DAC
AND LPF
u163
OUTPUT AMP
DAC
AND LPF
.
8 9
2 9 9 4 2 8
16 15 14 13 12 11
1 5 0 5 8 2 9 9 4
7 8 9 10
24 VCC3
23 AGND3
22 VCC4
21 AGND4
20 VOUT8
19 AGND6
18 VCC5
17 AGND5
16 VOUT7
15 VCOM
14 VOUT1
m
13 VOUT2
co
10 11 12
9 9
2 8 9 9