PCMD3180-Q1 Series
Automotive, eight-channel pulse-density-modulation input to TDM or I²S output converter
Manufacturer: Texas Instruments
Catalog
Automotive, eight-channel pulse-density-modulation input to TDM or I²S output converter
Key Features
• 8-channel PDM microphones simultaneous conversionPDM input to TDM or I2S output converter performance:127dB dynamic range (DR) with high performance 5th order PDM input117dB dynamic range (DR) with high performance 4th order PDM inputChannel summing mode, DR performance with high performance 4th order PDM input:120dB, 2-channel summing123dB, 4-channel summingProgrammable PDM clock output:768kHz to 6.144MHzProgrammable output sample rate (fS):8kHz to 768kHzProgrammable channel settings:Digital volume control: –100dB to 27dBGain calibration with 0.1dB resolutionPhase calibration with 163ns resolutionMicrophone bias or supply voltage generationLow-latency signal processing filter selectionProgrammable HPF and biquad digital filtersI2C or SPI controlsIntegrated high-performance audio PLLAutomatic clock divider setting configurationsAudio serial data interface:Format: TDM, I2S, or left-justified (LJ)Word length: 16 bits, 20 bits, 24 bits, or 32 bitsController or target interfaceSingle-supply operation: 3.3V or 1.8VI/O-supply operation: 3.3V or 1.8VPower consumption for 1.8V supply:2.9mW/channel at 16kHz sample rate2.5mW/channel at 48kHz sample rate8-channel PDM microphones simultaneous conversionPDM input to TDM or I2S output converter performance:127dB dynamic range (DR) with high performance 5th order PDM input117dB dynamic range (DR) with high performance 4th order PDM inputChannel summing mode, DR performance with high performance 4th order PDM input:120dB, 2-channel summing123dB, 4-channel summingProgrammable PDM clock output:768kHz to 6.144MHzProgrammable output sample rate (fS):8kHz to 768kHzProgrammable channel settings:Digital volume control: –100dB to 27dBGain calibration with 0.1dB resolutionPhase calibration with 163ns resolutionMicrophone bias or supply voltage generationLow-latency signal processing filter selectionProgrammable HPF and biquad digital filtersI2C or SPI controlsIntegrated high-performance audio PLLAutomatic clock divider setting configurationsAudio serial data interface:Format: TDM, I2S, or left-justified (LJ)Word length: 16 bits, 20 bits, 24 bits, or 32 bitsController or target interfaceSingle-supply operation: 3.3V or 1.8VI/O-supply operation: 3.3V or 1.8VPower consumption for 1.8V supply:2.9mW/channel at 16kHz sample rate2.5mW/channel at 48kHz sample rate
Description
AI
The PCMD3180-Q1 is a high-performance, pulse-density-modulation (PDM) input to time-division multiplexing (TDM) or I2S output converter that supports simultaneous sampling of up to eight digital channels for the PDM microphone input. The device integrates programmable digital volume control, a microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for output sample rates up to 768kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI interface. Additionally, the PCMD3180-Q1 supports controller and target 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 3.3V or 1.8V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.
The PCMD3180-Q1 is specified from –40°C to 125°C and is offered in a 24-pin WQFN package.
The PCMD3180-Q1 is a high-performance, pulse-density-modulation (PDM) input to time-division multiplexing (TDM) or I2S output converter that supports simultaneous sampling of up to eight digital channels for the PDM microphone input. The device integrates programmable digital volume control, a microphone bias voltage, a phase-locked loop (PLL), a programmable high-pass filter (HPF), biquad filters, low-latency filter modes, and allows for output sample rates up to 768kHz. The device supports time-division multiplexing (TDM), I2S, or left-justified (LJ) audio formats, and can be controlled with either the I2C or SPI interface. Additionally, the PCMD3180-Q1 supports controller and target 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 3.3V or 1.8V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.
The PCMD3180-Q1 is specified from –40°C to 125°C and is offered in a 24-pin WQFN package.
