PCM1840 Audio Analog-to-Digital Converter (ADC)

Texas Instruments PCM1840 Audio Analog-to-Digital Converter (ADC) supports simultaneous sampling of up to four analog channels. The device supports differential line and microphone inputs with a 2V_RMS full-scale signal. The device integrates microphone bias voltage, a phase-locked loop (PLL), a DC removal high-pass filter (HPF), and supports sample rates up to 192kHz. The device supports time-division multiplexing (TDM), I²S, or left-justified (LJ) audio formats, selectable with the hardware pin level. Additionally, the PCM1840 supports master and slave mode selection for the audio-bus interface operation. These integrated high-performance features and the ability to be powered from a single supply of 3.3V make the device an excellent choice for cost-sensitive, space-constrained audio systems in far-field microphone recording applications. The Texas Instruments PCM1840 is specified from –40°C to +125°C and is offered in a 24-pin WQFN package.