Philips SACD 1000/001 Service Manual page 104

GB 148 9. SACD 1000
DISCS
SACD (DSD) All channels: Normal* L and R: Custom* Other channels: Normal
CD (PCM)
* Normal: output via 1 filter stage (3rd order filter)
• Custom: output via 2 filter stage (6th order filter)
9.25.3 Description of DAC CS4397
CS4397
Block Diagram
SCLK
LRCK
SDATA
CLOCK
MCLK
DIVIDER
M4 M3
(AD0/CS) (AD1/CDIN) (SCL/CCLK)
Pin Configuration
+5 to +3 V
Digital
M ode
S elect
(Contro l P o rt)
A u dio
D ata
P ro cessor
E xternal C lo ck
Typical Connection Diagram - Hardware Mode (Control Port Mode)
Circuit-, IC descriptions and list of abbreviations
Position 1
SERIAL INTERFACE
AND FORMAT SELECT
MULTI-BIT
INTERPOLATION
DS
FILTER
MODULATOR
MULTI-BIT
INTERPOLATION
DS
FILTER
MODULATOR
HARDWARE MODE CONTROL
(CONTROL PORT)
M2 M1 M0 RESET
(SDA/CDOUT)
+
7 8
V D V D
5
M 0 (S D A /C DO U T )
14
M 1 (G N D)
4
M 2 (S CL/C C LK )
3
M 3 (A D1/C DIN)
2
M 4 (AD 0/CS )
16
C /H
CS 4397
12
LR CK
11
S C L K
13
S D AT A
15
M U T E
1
R S T
10
M CL K
D G ND
9
6
Filter switch position
position 2
All channels : Custom
DE-EMPHASIS
SOFT MUTE
FILTER
DYNAMIC
SWITCHED
ELEMENT
CAPACITOR-DAC
MATCHING
AND FILTER
LOGIC
DYNAMIC
SWITCHED
ELEMENT
CAPACITOR-DAC
MATCHING
AND FILTER
LOGIC
VOLTAGE REFERENCE
MUTEC MUTE FILT+ VREF FILT-
+
22
V A
28
V RE F
27
F ILT +
26
FILT -
25
CM O U T
24
A O UT L -
An alog
C ond itio nin g
23
A O UT L+
17
M U T E C
19
A O UT R-
An alog
C ond itio nin g
20
A O U T R+
A G ND
21 18
position 3
All channels: Custom
AOUTL+
AOUTL-
AOUTR+
AOUTR-
CMOUT
+5 V
A na lo g
+5V
An alog
+
+
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