參數(shù)資料
型號(hào): PT2256-SNL
廠商: Princeton Technology Corporation
英文描述: Electronic Volume Controller IC
中文描述: 電子音量控制IC
文件頁(yè)數(shù): 5/21頁(yè)
文件大小: 409K
代理商: PT2256-SNL
URL:http://www.princeton.com.tw
Fax:886-2-29174598
Tel:886-2-66296288
FUNCTION DESCRIPTION
ATTENUATION
The PT2256 volume control circuit consists of ladder resistors and analog switches. The Tap for
loudness function is connected to the Step 10 (-20dB). When the (3.9K
) resistor is connected
between LT and AGND pins, the attenuation is given in table below.
Attenuation
(dB)
(dB)
0
0
16
-32
1
-2
17
-34
2
-4
18
-36
3
-6
19
-38
4
-8
20
-40
5
-10
21
-42
6
-12
22
-46
7
-14
23
-50
8
-16
24
-54
9
-18
25
-58
10
-20
26
-62
11
-22
27
-66
12
-24
28
-70
13
-26
29
-74
14
-28
30
-78
15
-30
31
PT2256 V1.7
- 5 -
August, 2006
Electronic Volume Controller IC
PT2256
The equivalent circuit is shown below:
OUT
Step
Step
Attenuation
IN
LT
AGND
Step 0
Step 1
Step 9
Step 10
Step 11
Step 31
Step 30
29K
22K
Step 2
Note: Step 22 has an initial value of -46dB.
相關(guān)PDF資料
PDF描述
PT2256V Electronic Volume Controller IC
PT2256V(L) Electronic Volume Controller IC
PT2256V-S Electronic Volume Controller IC
PT2256V-S(L) Electronic Volume Controller IC
PT2256V-SN Electronic Volume Controller IC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PT2256V 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Electronic Volume Controller IC
PT2256V(L) 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Electronic Volume Controller IC
PT2256VL 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Electronic Volume Controller IC
PT2256V-S 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Electronic Volume Controller IC
PT2256V-S(L) 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Electronic Volume Controller IC