PT2257 Description
The PT2257 is an electronic volume controller IC utilizing CMOS technology specially designed for the new generation of AV entertainment products. It has two (2) built-in channels making it ideally suitable for mono and stereo sound applications. The PT2257 provides an I2C control interface, an attenuation range of 0 to -79dB, low noise, and high channel separation.
PT2257 Key Features
- CMOS technology
- Low power consumption
- Least external ponents
- Attenuation range: 0 to -79dB at 1dB/step
- Operating voltage: 3 to 9V
- Low Noise, S/N Ratio>100dB (A-weighting)
- Two channel output
- Available in 8-pin, DIP or SOP