49
4-23.
IC PIN FUNCTION DESCRIPTION
•
MAIN BOARD IC300 CXD2727Q (DIGITAL SIGNAL PROCESSOR, DIGITAL FILTER, D/A CONVERTER)
Pin No.
Pin Name
I/O
Description
1
VSS1
—
Ground terminal (digital system)
2 to 15
T.P
I
Input terminal for the test (fixed at “L”)
16 to 21
TST0 to TST5
I
Input terminal for the test (fixed at “L”)
22 to 24
JPE1 to JPE3
I
External condition jump terminal “H”: condition jump (fixed at “L”)
25
VDD1
—
Power supply terminal (+3.3V) (digital system)
26
AVS3
—
Ground terminal (for D/A converter 1) (analog system)
27
AOUTL1
O
D/A converter 1 (L-ch side) output terminal
Analog signal output for front side (L-ch side) output in this set
28
AVD3
—
Power supply terminal (+3.3V) (for D/A converter 1) (analog system)
29
AOUTR1
O
D/A converter 1 (R-ch side) output terminal
Analog signal output for rear side (L-ch side) output in this set
30
AVD5
—
Power supply terminal (+3.3V) (for D/A converter 1) (analog system)
31
AVS5
—
Ground terminal (for D/A converter 1) (analog system)
32
AVD1
—
Power supply terminal (+3.3V) (for L-ch side A/D converter) (analog system)
33
AVS1
—
Ground terminal (for L-ch side A/D converter) (analog system)
34
LREF
O
Connected to the bus control for A/D converter (for L-ch side)
35
LIN
I
A/D converter (L-ch side) analog input terminal
Tuner and bus audio input signal (L-ch side) in this set
36
AVS7
—
Ground terminal (for D/A converter 2) (analog system)
37
AVD7
—
Power supply terminal (+3.3V) (for D/A converter 2) (analog system)
38
AOUTL2
O
D/A converter 2 (L-ch side) output terminal Not used (open)
39
AVDX
—
Power supply terminal (+3.3V) (for master clock) (analog system)
40
XTLO38
O
System clock output terminal (16.9344 MHz)
41
XTLI38
I
System clock input terminal (16.9344 MHz)
42
AVSX
—
Ground terminal (for master clock) (analog system)
43
AOUTR2
O
D/A converter 2 (R-ch side) output terminal
Analog signal output for sub woofer output in this set
44
AVD8
—
Power supply terminal (+3.3V) (for D/A converter 2) (analog system)
45
AVS8
—
Ground terminal (for D/A converter 2) (analog system)
46
RIN
I
A/D converter (R-ch side) analog input terminal
Tuner and bus audio input signal (R-ch side) in this set
47
RREF
O
Connected to the bus control for A/D converter (for R-ch side)
48
AVS2
—
Ground terminal (for R-ch side A/D converter) (analog system)
49
AVD2
—
Power supply terminal (+3.3V) (for R-ch side A/D converter) (analog system)
50
AVS6
—
Ground terminal (for D/A converter 3) (analog system)
51
AVD6
—
Power supply terminal (+3.3V) (for D/A converter 3) (analog system)
52
AOUTL3
O
D/A converter 3 (L-ch side) output terminal
Analog signal output for rear side (R-ch side) output in this set
53
AVD4
—
Power supply terminal (+3.3V) (for D/A converter 3) (analog system)
54
AOUTR3
O
D/A converter 3 (R-ch side) output terminal
Analog signal output for front side (R-ch side) output in this set
55
AVS4
—
Ground terminal (for D/A converter 3) (analog system)
56
VSS2
—
Ground terminal (digital system)
57
XRST
I
System reset signal input from the master controller (IC500) “L”: reset
58
BFOT
O
Master clock signal output terminal Not used (open)
Содержание MDX-C8970
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Страница 40: ...MDX C8970 40 40 4 21 PRINTED WIRING BOARD RELAY Board See page 24 for Circuit Boards Location Page 38 Page 29 ...
Страница 41: ...41 MDX C8970 4 22 SCHEMATIC DIAGRAM RELAY Board Page 39 Page 33 ...