YSS902 Datasheet, PDF (3/12 Pages) YAMAHA CORPORATION – Dolby Digital (AC-3) / Pro Logic decoder + Sub DSP

YSS902
PIN FUNCTION
No. Name I/O
1 VDD1
-
2 RAMCEN O
3 RAMA16 O
4 RAMA15 O
5 SDIB0 I+
6 SDIB1 I+
7 SDIB2 I+
8
XI
I
9
XO
O
10 VSS
-
11 AVDD -
12 TEST
13 TEST
14 TEST
15 OVFB O
16 TEST
17 TEST
18 TEST
19 CPO
A
20 AVSS
-
21 VDD2
-
22 SDOA2 O
23 SDOA1 O
24 SDOA0 O
25 RAMA14 O
26 RAMA13 O
27 RAMA12 O
28 RAMA11 O
29 RAMA10 O
30 VSS
-
31 VDD1
-
32 OPORT0 O
33 OPORT1 O
34 OPORT2 O
35 OPORT3 O
36 OPORT4 O
37 OPORT5 O
38 OPORT6 O
39 OPORT7 O
40 VSS
-
41 VDD2
-
42 RAMA9 O
43 RAMA8 O
44 RAMA7 O
45 SDOB2 O
46 SDOB1 O
47 SDOB0 O
48 SDBCK1 I+
49 SDWCK1 I+
50 VSS
-
51 VDD2
-
52 NONPCM O
53 CRC
O
54 MUTE O
55 KARAOKE O
FUNCTION
+5V power supply (for I/Os)
External SRAM interface /CE
External SRAM interface address 16
External SRAM interface address 15
PCM input 0 to Sub DSP
PCM input 1 to Sub DSP
PCM input 2 to Sub DSP
Crystal oscillator connection (6.125MHz - 50.0MHz)
Crystal oscillator connection
Ground
+3.3 V power supply (for PLL circuit)
Test terminal (to be open in normal use)
Test terminal (to be open in normal use)
Test terminal (to be open in normal use)
Detection of overflow at Sub DSP
Test terminal (to be open in normal use)
Test terminal (to be open in normal use)
Test terminal (to be open in normal use)
Output terminal for PLL, to be connected to ground through the external analog filter circuit
Ground (for PLL circuit)
+3.3 V power supply (for core logic)
PCM output from Main DSP (C, LFE)
PCM output from Main DSP (LS, RS )
PCM output from Main DSP (L, R)
External SRAM interface address 14
External SRAM interface address 13
External SRAM interface address 12
External SRAM interface address 11
External SRAM interface address 10
Ground
+5V power supply (for I/Os)
Output port for general purpose
Output port for general purpose
Output port for general purpose
Output port for general purpose
Output port for general purpose
Output port for general purpose
Output port for general purpose
Output port for general purpose
Ground
+3.3 V power supply (for core logic)
External SRAM interface address 9
External SRAM interface address 8
External SRAM interface address 7
PCM output from Sub DSP
PCM output from Sub DSP
PCM output from Sub DSP
Bit clock input for SDOA, SDIB, SDOB
Word clock input for SDOA, SDIB, SDOB
Ground
+3.3 V power supply (for core logic)
Detection of non-PCM data
Detection of CRC error
Detection of auto mute
Detection of AC-3 karaoke data
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