PCM1809 Series
Stereo-channel 32-bit 192kHz audio ADC with 102dB SNR and no external AC-coupling capacitors
Manufacturer: Texas Instruments
Catalog
Stereo-channel 32-bit 192kHz audio ADC with 102dB SNR and no external AC-coupling capacitors
Key Features
• Stereo low power ADC:2-channel analog microphones or line-inADC line and microphone differential and single-ended input performance:PCM1809 dynamic range:Differential Input: 104dBSingle-ended Input: 102dBTHD+N: –95 dB2-VRMS differential full-scale inputDirect CouplingWide Input Common Mode supportAC/DC Coupling supportADC sample rate (fS) = 8 kHz to 192 kHzHardware pin control configurationsLinear-phase or low-latency filter selectionFlexible audio serial data interface:Controller or target 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 low power ADC:2-channel analog microphones or line-inADC line and microphone differential and single-ended input performance:PCM1809 dynamic range:Differential Input: 104dBSingle-ended Input: 102dBTHD+N: –95 dB2-VRMS differential full-scale inputDirect CouplingWide Input Common Mode supportAC/DC Coupling supportADC sample rate (fS) = 8 kHz to 192 kHzHardware pin control configurationsLinear-phase or low-latency filter selectionFlexible audio serial data interface:Controller or target 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 PCM1809 is a low power 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 2VRMS full-scale differential signal. The device integrates 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) or I2S audio formats, selectable with the hardware pin level. Additionally, the PCM1809 supports Controller and target mode selection for the audio bus interface operation. These integrated features, along with 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 microphone recording applications.
The PCM1809 is specified from –40°C to +105°C, and is offered in a 20-pin WQFN package.
The PCM1809 is a low power 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 2VRMS full-scale differential signal. The device integrates 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) or I2S audio formats, selectable with the hardware pin level. Additionally, the PCM1809 supports Controller and target mode selection for the audio bus interface operation. These integrated features, along with 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 microphone recording applications.
The PCM1809 is specified from –40°C to +105°C, and is offered in a 20-pin WQFN package.
