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RX-V990
IC7: YSS223
Digital Dolby Pro Logic Decoder with Auto Input Balance
No.
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
SYNCO
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Note:
Letters used in the above I/O column represent as follows.
I : Input terminal
15
Name
110
-
AO
0
A1
0
A2
0
A3
0
A4
0
External data RAM address terminal
A5
0
A6
0
A7
0
A12
0
-
A14
0
-
DVDD
]
+5V power supply (digital section)
-
DVDD
/WE
0
External delay RAM write enable terminal
A13
0
A8
0
] E~'mal d,'ay RAMadd""
A9
0
A11
0
fOE
0
External delay RAM output enable terminal
A10
0
External delay RAM address terminal
ICE
0
External delay RAM chip enable terminal
1
D7
1/0t
D6
I/Ot
D5
1/0t
E>rt,mald'~y RAMdata"'mioal
D4
I/Ot
D3
1/0t
0
External
256FS
External
0
ADD
It
External
64FS
0
External
XO
0
]
Crystal oscillator connecting terminal
XI
I
DGND
-
Ground (digital section)
AVDD
A-
+5V power supply (Analog section)
FR
AO
FR channel
FL
FL channel
AO
CHL
A-
L1NS input
L1NS
L channel
AI
RINS
R channel
AI
CHR
A-
RINS input
RL
AO
RL channel
RR
RR channel
AO
CV
ND,
multiplying DAC center voltage
AO
AGND
A-
Ground (Analog section)
0 : Output terminal
t : TTL level
Function
",mioal
ND
converter word clock terminal
ND
converter 256fs clock terminal
ND
converter data input terminal
ND
converter 64fs clock terminal
D/A input
D/A output
Sample/hold
Capacitor external terminal
ND
input
ND
input
Sample/hold
Capacitor external terminal
D/A output
D/A input
C : CMOS level
S : Schmidt input
A: Analog
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