PCM1822 Series

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

Catalog

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

Part	Type	Data Interface	Voltage Supply Source	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Resolution (Bits)	Voltage - Supply [Max]	Voltage - Supply [Min]	Supplier Device Package	Number of Channels [custom]	Package / Case
Texas Instruments PCM1822IRTER	ADC Audio	I2S	Analog and Digital	Surface Mount	125 °C	-40 °C	32 b	3.6 V	3 V	20-WQFN (3x3)	2	20-WFQFN Exposed Pad

Catalog

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

Key Features

• Stereo high-performance ADC:2-channel analog microphones or line-inADC line and microphone differential and single-ended input performance:PCM1822 dynamic range:117-dB, dynamic range enhancer enabled111-dB, dynamic range enhancer disabledTHD+N: –95 dB1-VRMSfull-scale inputADC sample rate (fS) = 8 kHz to 192 kHzHardware pin control configurationsLinear-phase or low-latency filter selectionFlexible audio serial data interface:Master or slave interface selection32-bits, 2-channel TDM32-bits, 2-channel I2SAutomatic power-down upon loss of audio clocksIntegrated high-performance audio PLLSingle-supply operation: 3.3 VI/O-supply operation: 3.3 V or 1.8 VPower consumption for 3.3-V AVDD supply:19.6 mW/channel at 16-kHz sample rate21.3 mW/channel at 48-kHz sample rateStereo high-performance ADC:2-channel analog microphones or line-inADC line and microphone differential and single-ended input performance:PCM1822 dynamic range:117-dB, dynamic range enhancer enabled111-dB, dynamic range enhancer disabledTHD+N: –95 dB1-VRMSfull-scale inputADC sample rate (fS) = 8 kHz to 192 kHzHardware pin control configurationsLinear-phase or low-latency filter selectionFlexible audio serial data interface:Master or slave interface selection32-bits, 2-channel TDM32-bits, 2-channel I2SAutomatic power-down upon loss of audio clocksIntegrated high-performance audio PLLSingle-supply operation: 3.3 VI/O-supply operation: 3.3 V or 1.8 VPower consumption for 3.3-V AVDD supply:19.6 mW/channel at 16-kHz sample rate21.3 mW/channel at 48-kHz sample rate

Description

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-VRMSfull-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. 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-VRMSfull-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.