Sanyo DC-DA1200V - Page 15

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IC BLOCK DIAGRAM & DESCRIPTION
IC441 TC9422F (Volume Control)
GND
2
1
VDD
28
3
4
5
6
7
8
9
10
11
12
13 14 15 16
27
26
25
24
23
22
21
20
19
18
17
Vref CK DATA STB
32BIT SR
50k
500
750
50k
100k
MAIN VR
50k / 64STEP
13k
13k
1k
BASS VR
50k /
16STEP
TREBLE VR
50k /
16STEP
50k
CAPACITOR FOR
OSCILLATION
GAIN CONTROL
0, 6, 12, 18dB
INPUT
SELECTOR
500
750
50k
100k
MAIN VR
50k / 64STEP
13k
13k
1k
BASS VR
50k /
16STEP
TREBLE VR
50k /
16STEP
CAPACITOR FOR
OSCILLATION
GAIN CONTROL
0, 6, 12, 18dB
INPUT
SELECTOR
L-IN1
L-IN2
L-IN3
L-IN4
L-SW-OUT
L-VR-IN
L-B1
L-B2
L-B3
L-Tone-OUT
L-T1
R-IN1
R-IN2
R-IN3
R-IN4
R-SW-OUT
R-VR-IN
R-B1
R-B2
R-B3
R-Tone-OU
T
R-T1