Read Sony CDX-C860 / CDX-C860RDS Service Manual online
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SECTION 4
DIAGRAMS
4-1. IC PIN DESCRIPTIONS
• IC301 CXD2710R (DSP)
• IC301 CXD2710R (DSP)
Pin No.
Pin Name
I/O
Pin Description
1
AMPIN
I
Loop filter amplifier input for PLL.
2
AMPOUT
O
Loop filter amplifier output for PLL.
3
VDD
—
Power supply pin (+5 V)
4
VSS
—
GND
5
AVSS1
—
GND for PLL.
6
VCOC
I
VCO control signal input
7
AVDD1
—
Power supply pin for PLL VCO. (+5 V)
8
—
—
Not used.
9
MCK1
I
Master clock input (768Fs) (Fixed at “H”.)
10
MCK2
I
Master clock input (384Fs) (Fixed at “H”.)
11
MCKOUT
O
Master clock output (Not used.)
12
MCKSEL
I
MCK1/internal VCO select pin (“H” : MCK1, “L” : internal VCO) (Fixed at “L”.)
13
XMUTE
I
Mute signal input of serial interface from DSP system control (IC505).
14
DIN
I
Program data serial input from DSP system control (IC505).
15
VSS
—
GND
16
SCK
I
Program data serial clock input from DSP system control (IC505).
17
XLD
I
Program data load input from DSP system control (IC505).
18
DOUT
O
Internal serial data output to DSP system control (IC505).
19
BUSY
O
Data transfer busy signal output to DSP system control (IC505).
20
XCLK
I
Reset signal input from DSP system control (IC505).
21 – 27
—
—
Connect to GND.
28
VDD
—
Power supply pin (+5 V)
29
VSS
—
GND
30 – 38
—
—
Connect to GND.
39
M1
O
Parallel data output (MSB) (Connect to GND.)
40
VSS
—
GND
41 – 52
M2 – M13
O
Parallel data output (Connect to GND.)
53
VDD
—
Power supply pin (+5 V)
54
VSS
—
GND
55, 56
M14, M15
O
Parallel data output (Connect to GND.)
57
M16
O
Parallel data output (LSB) (Connect to GND.)
58 – 64
—
—
Connect to GND.
65
VSS
—
GND
66 – 74
—
—
Connect to GND.
75, 76
—
—
Fixed at “H”.
77
D.SEL1
I
Serial/parallel select pin (Fixed at “L”.)
78
VDD
—
Power supply pin (+5 V)
79
GND
—
GND
80
D.SEL2
I
Serial/parallel select pin (Fixed at “L”.)
81, 82
—
—
Connect to GND.
83
AVDD2
—
Power supply pin for DRAM. (+5 V)
84
AVSS2
—
GND for D-RAM.
85
AVDD3
—
Power supply pin for DRAM. (+5 V)
86
AVSS3
—
GND for DRAM.
87
SUBDOUT
O
Serial data (1 sampling, 2 channel) output for the sub-woofer speaker.
88
RDOUT
O
Serial data (1 sampling, 2 channel) output for the rear side speaker.
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