參數(shù)資料
型號: PT2310L
廠商: Princeton Technology Corporation
英文描述: Volume Controller IC
中文描述: 音量控制IC
文件頁數(shù): 4/16頁
文件大?。?/td> 335K
代理商: PT2310L
Tel: 886-2-66296288
FUNCTION DESCRIPTION
ATTENUATION
The PT2310 volume attenuator is consists of resistor ladder and analog switch. The Tap for loudness
function is connected to the Step 10 (-20 dB). The relations of step and attenuation is given in table
below
Step
dB
Step
dB
0
0
21
-42
1
-2
22
-44
2
-4
23
-46
3
-6
24
-48
4
-8
25
-50
5
-10
26
-52
6
-12
27
-54
7
-14
28
-56
8
-16
29
-58
9
-18
30
-60
10
-20
31
-62
11
-22
32
-64
12
-24
33
-66
13
-26
34
-68
14
-28
35
-70
15
-30
36
-72
16
-32
37
-74
17
-34
38
-76
18
-36
39
-78
19
-38
40
-
20
-40
URL: http://www.princeton.com.tw
Fax: 886-2-29174598
PT2310 V1.0
- 4 -
June, 2005
Volume Controller IC
PT2310
Ladder resistors Diagram
OUT
IN
28.5K
LD1
AGND
S0
S1
S9
S10
S11
S40
S39
21.97K
LS1
LS2
S12
LD2
3.7K
Note:
1. Loudness On: LS1=On, LS2=Off
2. Loudness Off: LS1=Off, LS2=On
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