Stereo, 117-dB SNR, 192-kHz, low-power, hardware-controlled, audio ADC

The PCM1822 is a

high-performance, Burr-Brown™ audio

analog-to-digital converter (ADC) that supports simultaneous sampling of up to two

analog channels. The device supports single-ended and differential line and

microphone inputs with a 1-VRMS full-scale signal. The device integrates

a phase-locked loop (PLL), a DC removal high-pass filter (HPF), and supports sample

rates up to 192 kHz. The device supports time-division multiplexing (TDM) or

I2S audio formats, selectable with the hardware pin level.

Additionally, the PCM1822 supports master and slave mode selection

for the audio bus interface operation. These integrated high-performance features,

along with the ability to be powered from a single supply of 3.3 V, make the device

an excellent choice for cost-sensitive, space-constrained audio systems in far-field

microphone recording applications.

The PCM1822 is

specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.