Table of Contents
Advertisement
QQ
3 7 63 1515 0
2.Pin functions (2/2)
Pin No.
Symbol
47
DAC CS
48~51
-
52
DISC SEL
53
DAC SEL
54
-
55
TEST MODE
56
MP3 SEL
57
8V DET
58
REST
59
SW2
60
RESET
61
SW1
62
B.DET
63
P.DET
64
BUS INT
65
MP3 REQ
66
-
67
VSS0
68
VDD1
69
X2
70
X1
71
VPP
72
XT2
73
XT1
TE
L 13942296513
74
VDD0
75
AVDD
76
IOP
77
KEY0
78
KEY1
79
KEY2
80
KET3
LA47503 (IC301) : Power amp
1. Pin layout
1
www
.
http://www.xiaoyu163.com
I/O
Function
O
DAC chip select terminal
-
No use
I
8cm disc corespondance mode select terminal (respondance:L)
I
DAC select mode input terminal
-
-
I
LCD/AD key/Remocon invalid select mode input terminal L:invalid
I
MP3 select mode input terminal
I
CD mechanism power supply detection terminal (L:8V on)
I
CD mechanism rest switch input terminal
I
CD mechanism SW2 input terminal
I
Riset signal input terminal
I
CD mechanism SW1 input terminal
I
Backup power supply detection input terminal (H:Stop mode)
I
Main power off detection input terminal (H:HALT mode)
I
JVC BUS comunication start squeeze input terminal
I
CD MP3 request signal input terminal
-
-
-
Connect to GND
-
Connect to 3.3V
O
Ocsillator (6MHz)
I
Oscillator (6MHz)
-
Connec to GND
O
Open
I
Connect to GND
-
Connect to 3.3V
-
Connect to ADCONT
I
Pickup IOP measurment input terminal
I
Key input 0 (8bit A/D input) terminal
I
Key input 1 (8bit A/D input) terminal
I
Key input 2 (8bit A/D input) terminal
I
Key input 3 (8bit A/D input) terminal
2. Block diagram
9
7
8
5
20
25
6
x
ao
y
11
1
i
http://www.xiaoyu163.com
8
Q Q
3
6 7
1 3
3
2
22
17
Mute
circuit
Ripple
filter
Stand by
switch
u163
12
4
10
15
.
2 9
9 4
2 8
1 5
0 5
8
2 9
9 4
19
18
21
23
Muting &
ON Time control
m
co
25
13
14
KD-SX980
9 9
2 8
9 9
24
Circuit
16
1-31
Hide quick links:
Advertisement
Table of Contents
