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參數(shù)資料
| 型號： | PT2257L |
| 廠商： | Princeton Technology Corporation |
| 英文描述： | Electronic Volume Controller IC |
| 中文描述： | 電子音量控制IC |
| 文件頁數(shù)： | 8/20頁 |
| 文件大小： | 360K |
| 代理商： | PT2257L |
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Tel: 886-2-66296288
DATA BYTES DESCRIPTION
FUNCTION BITS
MSB
2
3
1
1
1
1
1
0
1
1
1
1
0
1
1
0
1
0
0
1
0
0
1
PT2257 V1.3
- 8 -
December, 2006
Electronic Volume Controller IC
PT2257
4
1
1
0
0
1
0
1
5
1
A3
0
A3
0
A3
0
6
1
A2
B2
A2
B2
A2
B2
7
1
A1
B1
A1
B1
A1
B1
LSB
1
A0
B0
A0
B0
A0
B0
Function
Function OFF (-79dB)
2-Channel, -1dB/step
2-Channel, -10dB/step
Left Channel, -1dB/step
Left Channel, -10dB/step
Right Channel, -1dB/step
Right Channel, -10dB/step
2-Channel, MUTE
When M=1, MUTE=ON
When M=0, MUTE=OFF
0
1
1
1
1
0
0
M
ATTENUATION UNIT BIT
A3
A2/B2
0
0
0
0
0
0
0
0
1
1
Where: Ax=-dB/step, Bx=-10dB/step
For example, for a Left Channel Attenuation at -33dB, the data byte is as follows:
START 1
0
1
1
0
0
1
A1/B1
0
0
1
1
0
0
1
1
0
0
A0/B0
0
1
0
1
0
1
0
1
0
1
Attenuation Value (dB)
0/0
-1/-10
-2/-20
-3/-30
-4/-40
-5/-50
-6/-60
-7/-70
-8/
-9/
0
0
0
0
1
1
1
1
0
0
1
ACK
1
0
1
0
0
0
1
1
ACK
STOP
Left Channel -30dB
Left Channel -3dB
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PT2257-SL | Electronic Volume Controller IC |
| PT2258L | 6-Channel Electronic Volume Controller IC |
| PT2258-SL | 6-Channel Electronic Volume Controller IC |
| PT2258 | 6-Channel Electronic Volume Controller IC |
| PT2258-S | 6-Channel Electronic Volume Controller IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PT2257-S | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Electronic Volume Controller IC |
| PT2257-SL | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:Electronic Volume Controller IC |
| PT2258 | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:6-Channel Electronic Volume Controller IC |
| PT2258_07 | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:6-Channel Electronic Volume Controller IC |
| PT2258L | 制造商:PTC 制造商全稱:Princeton Technology Corp 功能描述:6-Channel Electronic Volume Controller IC |
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