47
STR-K995
• IC Pin Function Description
DIGITAL BOARD IC1501 CXD9718BQ (AUDIO DIGITAL SIGNAL PROCESSOR)
Pin No. Pin Name I/O Description
1 VSS — Ground pin
2 XRST I Reset signal input from system control IC
3 EXTIN I Not used. (Fixed to “L”)
4 LRCKI3 I Not used. (Fixed to “L”)
5 VDDI — Power supply pin (+2.6 V)
6 BCKI3 I Not used. (Fixed to “L”)
7 PLOCK O Not used. (Open)
8 VSS — Ground pin
9 MCLK1 I Clock signal input (13.9 MHz)
10 VDDI — Power supply pin (+2.6 V)
11 VSS — Ground pin
12 MCLK2 O Clock signal output (13.9 MHz)
13 MS I Not used. (Fixed to “L”)
14 SCKOUT O Internal system clock signal output for 8CH D/A converter IC
15 LRCKI1 I Sampling clock signal input from A/D converter IC
16 VDDE — Power supply pin (+3.3 V)
17 BCKI1 I Bit clock signal input from A/D converter IC
18 SDI1 I Audio IF data input from A/D converter IC
19 LRCKO O Sampling clock signal output for 8CH D/A converter IC
20 BCKO O Bit clock signal output for 8CH D/A converter IC
21 VSS — Ground pin
22 KFSIO I/O Audio clock signal (384fs/256fs) input/output for digital audio interface receiver IC
23 to 26 SDO1 to SDO4 O Digital audio serial data output for 8CH D/A converter IC
27 SPDIF O Not used. (Open)
28 LRCKI2 I Sampling clock signal input from A/D converter IC
29 BCKI2 I Bit clock signal input from A/D converter IC
30 SDI2 I Digital audio serial data input from digital audio interface receiver IC
31 VSS — Ground pin
32 HACN O Acknowledge signal output for system control IC
33 HDIN I Serial data input from system control IC
34 HCLK I Clock signal input from system control IC
35 HDOUT O Serial data output for system control IC
36 HCS I Chip select signal input from system control IC
37 GP12 I GP12 signal input from system control IC
38, 39 GP13, GP14 O Not used. (Open)
40 VDDI — Power supply pin (+2.6 V)
41 VSS — Ground pin
42 GP15 O Not used. (Open)
43 CE0 O SDRAM enable signal output
44 CS0 O External memory chip select signal output for SDRAM IC
45 WE0 O SDRAM write enable signal output for SDRAM IC
46 VDDE — Power supply pin (+3.3 V)
47 WMD1 I Not used. (Fixed to “H” (+3.3 V))
48 VSS — Ground pin
49 WMD0 I Not used. (Fixed to “H” (+3.3 V))
50 PAGE2 O Not used. (Open)
51 VSS — Ground pin
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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