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DS1881 - Dual NV Audio Taper Digital Potentiometer

Description

The DS1881 is a dual, nonvolatile (NV) digital potentiometer designed to operate in audio systems that require 5V signal levels.

The potentiometer settings can be stored in EEPROM so that they are retained when the power is cycled.

Features

  • es Dual, Audio Log Taper Potentiometers Low THD+N and Crosstalk 5V Analog Supply (Independent of Digital Supply) 3V to 5V Digital Supply Range Potentiometer Settings Configurable as NV or Volatile Zero-Crossing Detector Eliminates Switching Noise Two User-Configurable Attenuation Options Configuration Option 1: 63 Positions Provide 1dB Attenuation Steps from 0dB to -62dB Plus Mute Configuration Option 2: (Software-Compatible with the DS1808): 33 Positions Plus Mute as Follows Positions 0.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com Rev 0; 1/06 Dual NV Audio Taper Digital Potentiometer General Description The DS1881 is a dual, nonvolatile (NV) digital potentiometer designed to operate in audio systems that require 5V signal levels. The potentiometer settings can be stored in EEPROM so that they are retained when the power is cycled. The DS1881 has separate supplies for the potentiometers (VCC) and the communication circuitry (VDD). For clickless/popless operation, a zero-crossing detector allows the wiper position to change when there is no voltage across the potentiometer. The device is also designed to minimize crosstalk, and the two digital potentiometers provide 0.5dB channel-to-channel matching to prevent volume differences between channels.
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