PT2257 controller equivalent, electronic volume controller.
* CMOS technology
* Low power consumption
* Least external components
* Attenuation range: 0 to -79dB at 1dB/step
* Operating voltage: 3 to 9V
* L.
The PT2257 provides an I2C control interface, an attenuation range of 0 to -79dB, low noise, and high channel separatio.
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.
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