Sharp MD-S301 - Page 42

MD-S301/S301W
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IC702 VHiiR3R54N/-1 (IR3R54N): Audio Amp.
IC831, IC832 VHiiR3M09N/-1 (IR3M09N): Power Driver
1
2
3
4
8
7
6
5
NC
GND
DO
DI
V
CC
CS
SK
PROTECT
8 Pin SSOP
Top view
IC402 VHiS29L294A-1 (S29L294A): E
2
-PROM
12
OSCIN OSCOUT ROSC STATE VCC OUT
VREF
OSC
STAND-BY
VREF
PWM
LOGIC
Vcc
1
2
DB EAIN(-)EAIN(+) EAOUT GND
11 10 9 8 7
1 2 3 4 5 6
13 LATCH 12 R OUTPUT
14 CLOCK 11 R HP INPUT
LINE R INPUT
MIC SELECT R INPUT
MIC R OUTPUT
R HEADPHONE OUTPUT
MIC SELECT L INPUT
MIC L OUTPUT
L HEADPHONE OUTPUT
L OUTPUT
LINE L OUTPUT
L HP INPUT
15 SERIAL DATA 10
16 9
17 VEE
VCC
8 HP AMP BIAS
18 7 A GND
D GND
19 6
20 5
21 BIAS INPUT
MIC R INPUT
MIC L INPUT
MIC GND
4
22 3
23 2
24 1
LOGIC INPUT SECTION
HP
HP
LOGIC
INPUT
Figure 42 BLOCK DIAGRAM OF IC