New 103dB 2ch S/W controlled audio ADC with universal front end

29-05-2015 | Texas Instruments | Semiconductors

This post sponsored by Texas Instruments A new approach to audio-function integration to ease compliance with European Ecodesign legislation while enabling high-performance end products - Texas Instruments' (TI) has introduced the PCM186x family of audio front-end devices. With no need for a 5V supply or an external programmable-gain amplifier, smaller, smarter products are now feasible at reduced cost. The PCM186x's highly-flexible audio front end supports input levels from small-mV microphone inputs to 2.1 VRMS line Inputs without external resistor dividers. The PCM186x family integrates many system-level functions that assist or replace some DSP functions. All these features are available using a single 3.3V power supply. An integrated bandgap voltage reference provides exceptional PSRR, so that a dedicated analog 3.3V rail may not be required, says the company.

By Craig Dyball