JVC TH-A5 Service Manual page 20

TH-A5
CS493292 (DIC11) : Audio decoder
1. Pin layout
A0,SCCLK
DATA7,EMAD7,GPIO7
DATA6,ENAD6,GPIO6
DATA5,EMAD5,GPIO5
DATA4,EMAD4,GPIO4
VD2
DGND2
DATA3,EMAD3,GPIO3
DATA2,EMAD2,GPIO2
DATA1,EMAD1,GPIO1
DATA0,EMAD0,GPIO0
2. Block diagram
RESET
CMPDAT
SDATAN2
Compressed
CMPCLK
Data Input
SCLKN2
Interface
CMPREQ
LRCLKN2
SCLKN1
STCCLK2
Digital
Audio
LRCLKN1
Input
Interface
SDATAN1
CLKIN
Clock Manager
CLKSEL
FILT1 FILT2
1-20
6 5 4 3 2 1 44 43 42 41 40
7
8
9
10
11
12
13
14
15
16
17
18 19 20 21 22 23 24 25 26 27 28
RD
DATA7:0 R/W
EMAD7:0 EMOE
GPIO7:0 CS GPIO11
Framer
Shifter
Input
Buffer
Controller
RAM Input
Buffer
PLL
VA AGND DGND[3:1]
AUDATA2
39
DC
38
DD
37
RESET
36
AGND
35
VA
34
FILT1
33
FILT2
32
CLKSEL
31
CLKIN
30
29 CMPREQ,LRCLKN2
WR SCDIO
DS SCDOUT
EMWR PSEL A0
GPIO10 GPIO9 SCCLK
Parallel or Serial Host Interface
24-Bit
DPS Processing
RAM
RAM
Program Data
Memory Memory
Output
Buffer
ROM
ROM
Program
Data
Memory
Memory
STC
VD[3:1]
A1 ABOOT EXTMEM
SCDIN INTERQ GPIO8
RAM
DC
DD
MCLK
SCLK
LRCLK
AUDATA[2.0]
XMT958
/AUDATA3