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Title: Digital AV Decoder
Approved by:
Drawn by:
File Name:
Path: M:\IanS\temp\temp.ddb - Documents\SC011591.SCH
Print date:
Drawn date:
Issue:
Sheet of
2-Apr-2008
0
Huntingdon, United Kingdom.
This drawing is the intellectual property of Cyrus Electronics Ltd.
O
c
Description:
5
13
5
Sheet
CRYSTAL multi-channel codec featuring:
6 x 20-bit resolutiom DACs, 2 x 20-bit ADCs with attenuation
1-Apr-1999
Cummins/Sells
DAT
AUX/R
X
4
1
HOL
D/R
U
B
IT
2
SCL/CCLK
3
S
DA/C
DOUT
4
ADI
/C
DI
N
5
AD0/C
S
6
SPI/I2S
7
PDN
8
AIN3R/AUDIO
9
AIN3L/AUTODATA
10
AIN2L/FREQ0
11
AIN2R/FREQ1
12
AIN1R
13
AIN1L
14
AINAUX
15
CMOUT
16
FILT
17
AGND1
18
VA+
19
AGND2
20
AOUT1
21
AOUT2
22
AOUT3
23
AOUT4
24
AOUT5
25
AOUT6
26
DEM
27
XT
I
28
XT
O
29
OVL/ERR
30
C
L
KOUT
31
SDIN3
32
SDIN2
33
SDIN1
34
SDOUT2
35
SDOUT1
36
LRCK
37
SCLK
38
DGND2
39
VD+
40
DGND1
41
RX
1
42
S
C
L
KAUX/R
X
2
43
L
R
C
KAUX/R
X
3
44
Voltage
Reference
Input
Mux
S/PDIF RX/Auxiliary
PLL
Clock Osc/
Divider
DEM
Serial
Mux
ADC
Right
ADC
Left
ADC
Mono
Input
Analog
Control Port
Control
Volume
#6
DAC
Control
Volume
#5
DAC
Control
Volume
#4
DAC
Control
Volume
#3
DAC
Control
Volume
#2
DAC
Control
Volume
#1
DAC
Digital
Audio
Data
Interface
Filters
Low
Pass
and
Output
Stage
Digital
Filters
Gain
IC502
CS4226KQ
GND
To
Outputs
Filters
codecADCRight[1]
codecADCLeft[1]
From DSP
systemLRCLK
systemSCLK
SDATA Left/Right
SDATA Surround
SDATA Centre/Sub
systemMCLK
9
8
10
IC501D
12
11
13
IC501C
5
6
4
IC501B
/SS codec
spi SCK
spi MOSI
spi MISO
HOST micro comms
/audioRESET
R501
47R
codecSDATA
C505
10n
C506
47u
6.3V
GND
C503
10n
C504
47u
6.3V
L502
1.
0u-FSL
C502
10n
C501
10n
+5Vcodec
GND
GND
R503
3k3
C510
18nF
C509
180nF
GND
GND
2
3
14
7
1
IC501A
MM74HC125M
GND
GND
C508
10n
L503
1.0u-FSL
C507
10n
GND
+5V
codecDACLeft
codecDACRight
codecDACLeftSurround
codecDACRightSurround
codecDACSub
codecDACCentre
L501
1.
0u-FSL
R504
47R
R505
47R
GND
GND
NOTE: 74LCXx and 74LVX devices are 3.3 Volt
parts with 5V tolerent inputs.
R506
47R
GND
C
512
100p
GND GND GND GND GND GND GND GND
C
513
100p
C
514
100p
C
515
100p
C
516
100p
C
517
100p
C
518
100p
C
519
100p
+5Vcodec
IEC958 IN
RP503A
CAT16-470J4
47R
RP503B
RP503C
RP503D
RP504A
CAT16-470J4
47R
RP504B
RP504D
RP502A
CAT16-470J4
47R
RP502B
RP502C
RP502D
RP501A
CAT16-470J4
47R
RP501C
RP501B
RP501D
RP504C
MasterMode12.288MHz
GND GND
C
520
100p
C
521
100p
GND GND
C
522
100p
C
523
100p
From
Input
Op-Amps
codecADCRight[2]
codecADCLeft[2]
codecADCRight[3]
codecADCLeft[3]
C534 10u 16V
C533 10u 16V
C532 10u 16V
C531 10u 16V
C530 10u 16V
C529 10u 16V
C528 10u 16V
C527 10u 16V
C526 10u 16V
C525 10u 16V
C524 10u 16V
C535 10u 16V
C511 10u 16V
R502
100k
Enabled in ADC mode only
spi MISO
spi MISObuff
Set to 5k6 100nF &10nF