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參數(shù)資料
| 型號(hào)： | 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)： | 4/20頁 |
| 文件大?。?/td> | 360K |
| 代理商： | PT2257L |
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Tel: 886-2-66296288
FUNCTION DESCRIPTION
BUS INTERFACE
Data are transmitted to and from the microprocessor to the PT2257 via the SDA and SCL. The SDA
and SCL make up the BUS Interface. It should be noted that the pull-up resistors must be connected to
the positive supply voltage.
DATA VALIDITY
A data on the SDA Line is considered valid and stable only when the SCL Signal is in HIGH State. The
HIGH and LOW States of the SDA Line can only change when the SCL signal is LOW. Please refer to
the figure below.
PT2257 V1.3
- 4 -
December, 2006
Electronic Volume Controller IC
PT2257
DATA
CLK
Data Line
Stable,
DataValid
Data
Change
Allowed
START AND STOP CONDITIONS
A Start Condition is activated when
1. the SCL is set to HIGH and
2. SDA shifts from HIGH to LOW State.
The Stop Condition is activated when
1. SCL is set to HIGH and
2. SDA shifts from LOW to HIGH State.
Please refer to the timing diagram below.
DATA
CLK
Start
Stop
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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