Sony STR-K1600 Service Manual - Page 45

IC1501 CXD9718BQ DSP DIGITAL BOARD 3/4, Pin No., Pin Name, Pin Description

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STR-K1600 Ver. 1.1 • IC Pin Descriptions IC1501 CXD9718BQ (DSP) (DIGITAL BOARD (3/4)) Pin No. Pin Name I/O Pin Description 1 VSS - Ground 2 XRST I Reset signal input from SYSTEM CONTROL IC 3 EXTIN I Not used (Connect to ground) 4 LRCKI3 I Not used (Connect to ground) 5 VDDI I Power supply pin (+1.9 V) 6 BCKI3 I Not used (Connect to ground) 7 PLOCK O Not used (Open) 8 VSS - Ground 9 MCLK1 I Clock signal input (13.9 MHz) 10 VDDI I Power supply pin (+1.9 V) 11 VSS - Ground 12 MCLK2 O Clock signal output (13.9 MHz) 13 MS I Not used (Fixed at L) 14 SCKOUT O Internal system clock signal output for 8CH DAC IC 15 LRCKI1 I Sampling clock signal input from ADC IC 16 VDDE I Power supply pin (+3.4 V) 17 BCKI1 I Bit clock signal input from ADC IC 18 SDI1 I Audio IF data input from ADC IC 19 LRCKO O Sampling clock signal output for 8CH DAC IC 20 BCKO O Bit clock signal output for 8CH DAC IC 21 VSS - Ground 22 KFSIO I/O Audio clock signal (384fs/256fs) input/output for DIR IC 23 to 26 SDO1 to SDO4 O Digital audio serial data output for 8CH DAC IC 27 SPDIF O Not used (Open) 28 LRCKI2 I Sampling clock signal input from ADC IC 29 BCKI2 I Bit clock signal input from ADC IC 30 SDI2 I Digital audio serial data input from ADC IC 31 VSS - Ground 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 I Power supply pin (+1.9 V) 41 VSS - Ground 42 GP15 O Not used (Open) 43 OE0 O Not used (Open) 44 CS0 O External memory chip select signal output for D/A converter IC (SDRAM) 45 WE0 O SDRAM write enable signal output for D/A converter IC (SDRAM) 46 VDDE I Power supply pin (+3.4 V) 47 WMD1 I Not used (Fixed at H) 48 VSS - Ground 49 WMD0 I Not used (Fixed at H) 50 PAGE2 O Not used (Open) 51 VSS - Ground 52, 53 PAGE1, PAGE0 O Not used (Open) 54 BOOT I Not used (Connect to ground) 55 TST1 O Not used (Open) 56 BST I Boot stop signal input from SYSTEM CONTROL IC 45

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45
STR-K1600
Ver. 1.1
• IC Pin Descriptions
IC1501 CXD9718BQ (DSP) (DIGITAL BOARD (3/4))
Pin No.
Pin Name
I/O
Pin Description
1
VSS
—
Ground
2
XRST
I
Reset signal input from SYSTEM CONTROL IC
3
EXTIN
I
Not used (Connect to ground)
4
LRCKI3
I
Not used (Connect to ground)
5
VDDI
I
Power supply pin (+1.9 V)
6
BCKI3
I
Not used (Connect to ground)
7
PLOCK
O
Not used (Open)
8
VSS
—
Ground
9
MCLK1
I
Clock signal input (13.9 MHz)
10
VDDI
I
Power supply pin (+1.9 V)
11
VSS
—
Ground
12
MCLK2
O
Clock signal output (13.9 MHz)
13
MS
I
Not used (Fixed at L)
14
SCKOUT
O
Internal system clock signal output for 8CH DAC IC
15
LRCKI1
I
Sampling clock signal input from ADC IC
16
VDDE
I
Power supply pin (+3.4 V)
17
BCKI1
I
Bit clock signal input from ADC IC
18
SDI1
I
Audio IF data input from ADC IC
19
LRCKO
O
Sampling clock signal output for 8CH DAC IC
20
BCKO
O
Bit clock signal output for 8CH DAC IC
21
VSS
—
Ground
22
KFSIO
I/O
Audio clock signal (384fs/256fs) input/output for DIR IC
23 to 26
SDO1 to SDO4
O
Digital audio serial data output for 8CH DAC IC
27
SPDIF
O
Not used (Open)
28
LRCKI2
I
Sampling clock signal input from ADC IC
29
BCKI2
I
Bit clock signal input from ADC IC
30
SDI2
I
Digital audio serial data input from ADC IC
31
VSS
—
Ground
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
I
Power supply pin (+1.9 V)
41
VSS
—
Ground
42
GP15
O
Not used (Open)
43
OE0
O
Not used (Open)
44
CS0
O
External memory chip select signal output for D/A converter IC (SDRAM)
45
WE0
O
SDRAM write enable signal output for D/A converter IC (SDRAM)
46
VDDE
I
Power supply pin (+3.4 V)
47
WMD1
I
Not used (Fixed at H)
48
VSS
—
Ground
49
WMD0
I
Not used (Fixed at H)
50
PAGE2
O
Not used (Open)
51
VSS
—
Ground
52, 53
PAGE1, PAGE0
O
Not used (Open)
54
BOOT
I
Not used (Connect to ground)
55
TST1
O
Not used (Open)
56
BST
I
Boot stop signal input from SYSTEM CONTROL IC