Read Sony DVP-CX777ES Service Manual online
113
DVP-CX777ES
•
MB BOARD IC501 CXD1938AR (AUDIO DIGITAL SIGNAL PROCESSOR)
Pin No.
Pin Name
I/O
Description
1
CVD00
—
Power supply terminal (+1.8V) (digital system)
2
DSP1ACKO2
O
Acknowledge signal output terminal Not used
3, 4
DSP1ACKO0,
DSP1ACKO1
O
Acknowledge signal output to the AV decoder
5
GND00
—
Ground terminal (digital system)
6
RESET_NI
I
Reset signal input from the system controller “L”: reset
7
GND01
—
Ground terminal (digital system)
8
DSP1DIACKI
I
Audio clock signal input terminal Not used
9
GND02
—
Ground terminal (digital system)
10
DSP1DII
I
Digital audio data input from the DSP
11
IOVDD0
—
Power supply terminal (+3.3V) (digital system)
12
GND03
—
Ground terminal (digital system)
13
CVD01
—
Power supply terminal (+1.8V) (digital system)
14
PLL27_CLNI
I
PLL clock divider reset signal input terminal Not used
15
PLL_ENNI
I
PLL enable signal input terminal Not used
16
PLL_CLNI
I
PLL clock divider reset signal input terminal Not used
17
GND04
—
Ground terminal (digital system)
18
PLL_CLKO
O
PLL clock signal output terminal Not used
19
IOVDD1
—
Power supply terminal (+3.3V) (digital system)
20
PLL_AVDD
O
Power supply terminal (+3.3V) (analog system)
21
GND05
—
Ground terminal (digital system)
22
SCLKI
I
Clock (27 MHz) signal input from the clock generator
23
GND06
—
Ground terminal (digital system)
24
PLL_TST1I
I
Input terminal for the test (normally: fixed at “L”)
25, 26
PLL_TST2I,
PLL_TST3I
I
Input terminal for the test (normally: fixed at “H”)
27
PLL_TST4I
I
Input terminal for the test (normally: fixed at “L”)
28
PLL_AVSS
—
Ground terminal (analog system)
29
IOVDD2
—
Power supply terminal (+3.3V) (digital system)
30
GND07
—
Ground terminal (digital system)
31
CVD02
—
Power supply terminal (+1.8V) (digital system)
32
DSP2DII
I
Digital audio data input from the DSP
33
GND08
—
Ground terminal (digital system)
34
DSP2DIACKI
I
Audio clock signal input terminal Not used
35
GND09
—
Ground terminal (digital system)
36 to 38
DSP2ACKO0 to
DSP2ACKO2
O
Acknowledge signal output terminal Not used
39
IOVDD3
—
Power supply terminal (+3.3V) (digital system)
40
GND10
—
Ground terminal (digital system)
41
CVD03
—
Power supply terminal (+1.8V) (digital system)
42
DSP2LRCKO
O
L/R sampling clock output to the D/A converter and digital audio processor
43
DSP2BCKO
O
Bit clock output to the D/A converter and digital audio processor
44
DSP2EMPO
O
Emphasis control signal output terminal Not used
45
DSP2DO
O
Digital audio data output to the digital audio processor
46
IOVDD4
—
Power supply terminal (+3.3V) (digital system)
47
GND11
—
Ground terminal (digital system)
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