SC9235S SILAN [Silan Microelectronics Joint-stock], SC9235S Datasheet - Page 4

• Manufacturer Part Number: SC9235S
• Description: ELECTRONIC VOLUME
• Manufacturer: SILAN [Silan Microelectronics Joint-stock]

FUNCTION DESCRIPTION
1. VOLUME CIRCUIT
*
Volume circuit consist of ladder resistor and analog switch.
Tap for loudness is connected to step 10 (20dB).
Attenuation is as follows when resistor (3.9kΩ) is connected between TP pin and pin.
Equivalence circuit
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Silan
Semiconductors
20.25kΩ
28.5kΩ
GND
OUT
TP
IN
S
S
S
S
S
S
S
S
10
11
30
31
0
1
2
9
4
*
* Step 22 (46dB) initial value.
Step
10
11
12
13
14
15
Volume step and attenuation
(Attenuation is as follows when resistor (3.9kΩ) is
connected between TP pin and GND pin.)
0
1
2
3
4
5
6
7
8
9
Attenuation
0(dB)
10
12
14
16
18
20
22
24
26
28
30
2
4
6
8
Step
*22
16
17
18
19
20
21
23
24
25
26
27
28
29
30
31
SC9235
Rev: 1.0
Attenuation
32(dB)
34
36
38
40
42
46
50
54
58
62
66
70
74
78
∞
2000.12.31