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2
3
4
5
6
7
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B
C
D
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Title: Digital AV Decoder
Approved by:
Drawn by:
File Name:
Path: M:\IanS\temp\temp.ddb - Documents\SC011891.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:
8
13
8
Sheet
CRYSTAL audio decoder and signal processing DSP
1-Apr-1999
Cummins/Sells
VDD1
1
V
SS1
2
XMT958
3
WR , D
S
, EMWR
4
RD
, R/W , EMO
E
5
A1,
S
C
D
IN
6
A
0
,SCCLK
7
DAT
A7
8
DAT
A6
9
DAT
A5
10
DAT
A4
11
VDD2
12
V
SS2
13
DAT
A3
14
DAT
A2
15
DAT
A1
16
DAT
A0
17
CS
18
S
C
DI
O,
S
C
DOUT
19
AB
OOT
,
I
N
T
R
E
Q
20
EX
TMEM
21
SDATAN1
22
VDD3
23
V
SS3
24
SCLKN1,STCCLK2
25
LRCLKN1
26
SDATAN2,CMPDAT,RCV958
27
SCLKN2,CMPCLK
28
LRCLKN2,CMPREQ
29
CLKIN
30
CLKSEL
31
FILTD
32
FILTS
33
VDDA
34
V
SSA
35
RESET
36
DBDA
37
DBCLK
38
AUDATA2
39
AUDATA1
40
AUDATA0
41
LRCLK
42
SCLK
43
MCLK
44
PLL
Clock Manager
Compressed Data
Input Interface
S/PDIF Receiver
Digital Audio
Input Interface
Parallel or Serial Host Interface
Output
Formatter
Framer
Shifter
Input
Buffer
Controller
Input
Buffer
RAM
Output
Buffer
RAM
Memory
RAM
Program
Memory
RAM
Data
Memory
RAM
Program
Memory
RAM
Data
24-bit
DSP Processing
STC
IC802
44-pin PLCC socket
Fit CRYSTAL CS492603-CL during assembly
GND
4
VC
C
8
OUT
5
NC
1
X801
IQXO-23 C BU 49.152MHz
CLK
3
PRE
4
CLR
1
D
2
Q
5
Q
6
VDD
14
IC804A
MC74HC74AD
CLK
11
PRE
10
CLR
13
D
12
Q
9
Q
8
GND
7
IC804B
5
6
4
IC
803B
9
8
10
IC803D
EnableMasterClock
9
8
10
IC801D
12
11
13
IC801C
5
6
4
IC801B
/SS dsp
spi SCK
spi MOSI
spi MISO
+3.3V
systemLRCLK
systemSCLK
codecSDATA
systemMCLK
HOST
micro
comms
ds
pME
M
ds
pOE
dspDAT
A0
dspDAT
A1
dspDAT
A2
dspDAT
A3
dspDAT
A4
dspDAT
A5
dspDAT
A6
dspDAT
A7
To Ext
ernal
Decoder M
em
o
ry
/dspRESET
R802
47R
R803
47R
/dspINTREQAutoBoot
2
3
14
7
1
IC803A
MM74LVX125M
GND
C803
47n
GND
R811
47R
R806
100k
R807
100k
+3.3V
GND
Select Serial Host Mode
(/RD=1 /WR=0 at /RESET)
+5V
GND
C806
10n
C805
100n
GND
R813
47R
R814
47R
R815
100k
R816
DNF
+3.3V
GND
R821
47R
This provides Fs of 48.0 kHz
= 49.152 MHz / (4 * 256)
R819
47R
GND
GND
C821
47n
C807
220n
L804
1.0u-FSL
GND
L805
1.0u-FSL
C810
10n
C809
47u
6.3V
L803
1.0u-FSL
+3.3V
C808
10n
GND
C814
10n
C815
47u
6.3V
C816
10n
C817
47u
6.3V
C818
10n
C819
47u
6.3V
L806
1.0u-FSL
L807
1.0u-FSL
GND
GND
C811
10n
C812
10n
C813
10n
GND
GND
+3.3V
+3.3V
2
3
14
7
1
IC801A
MM74LVX125M
GND
C801
10n
GND
NOTE: 74LCXx devices are 3.3 Volt
parts with 5V tolerent inputs.
12
11
13
IC803C
GND
R809
47R
L802
1.0u-FSL
C804
47n
GND
L801
1.0u-FSL
C802
47n
GND
+5V
L808
1.0u-FSL
C820
47n
GND
systemLRCLK
systemSCLK
R810
47R
GND
R808
47R
RP804C
RP804B
RP805A
CAT16-470J4
47R
RP805B
RP805C
RP804A
CAT16-470J4
47R
RP805D
R820
47R
RP801A
CAT16-470J4
47R
RP801C
RP801B
RP801D
RP802A
CAT16-470J4
47R
RP802B
RP802C
RP802D
RP803A
CAT16-470J4
47R
RP803B
RP803C
RP803D
R804
68k
R805
100k
GND
R812
DNF
12.288MHz
49.152MHz
12.288MHz
49.152MHz
12.288MHz
MasterMode12.288MHz
R817
100k
R818
100k
+3.3V
+3.3V
+3.3V
R801
4k7
GND
SDATA Left/Right
SDATA Surround
SDATA Centre/Sub