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XI
XO
CPO
SDOA0
24
19
9
8
23
22
5
6
7
12
88
2
89
15
87
86
70
59
61
34
64
58
42 ~ 44
25 ~ 29
52
16
17
53
54
55
56
85
84
82
83
57
92 ~ 99
32 ~ 39
66
67
68
69
65
48
47
46
45
18
49
SDOA1
SDOA2
SDIB0
SDIB1
SDIB2
SDIB3
RAMD0~7
72 ~ 79
RAMCEN
RAMWEN
RAMOEN
RAMA0~16
OVFB
SDOB INTERFACE
SDIB INTERFACE
SDOA INTERFACE
SDIA INTERFACE
CRC
SDIASEL
SDIBSEL
IPORT0~7
CONT.
/SDBCK0
SDBCK0
SDWCK0
SDIA0
SDIA1
SURENC
STREAM0~7
OPERATION
CLOCK (30MHz)
KARAOKE
MUTE
CRC
AC3DATA
DTSDATA
NONPCM
PLL
DELAY RAM
L, R
Ls, Rs
C, LFE
INPUT
BUFFER
CONTROL REGISTER
U-COM INTERFACE
24 * 24
Main DSP
Dolby digital/ProLogic/DTS
DECODER
COEFFICIENT
PROGRAM
RAM
24 * 16
Sub DSP
DATA RAM
SDOB3
RAMD : RAM data
RAMA : RAM address
SDOB2
SDOB1
SDOB0
SDWCK1
SDBCK1
EXT. RAM
INTERFACE
CONT.
SDOACKSEL
SDIBCKSEL
SDOBCKSEL
ERAMUSE
/CS
SO
SI
SCK
OPORT0~7
/CSB
SCK
SI
11
KRF-V7020D/V8020D/VR-307/309/357
CIRCUIT DESCRIPTION
5. Dolby digital/DTS IC: YSS902/YSS912 (X08: IC1)
5-1 Block diagram (YSS912)