PCM1822-Q1 Series
Automotive, stereo, 117-dB SNR, 192-kHz hardware-controlled audio ADC
Manufacturer: Texas Instruments
Catalog
Automotive, stereo, 117-dB SNR, 192-kHz 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-Q1 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-Q1 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
AI
The PCM1822-Q1 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-Q1 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-Q1 is specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.
The PCM1822-Q1 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-Q1 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-Q1 is specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.
