PCMD3180 Series

Eight-channel pulse-density-modulation input to TDM or I²S output converter

Catalog

Eight-channel pulse-density-modulation input to TDM or I²S output converter

Part	Type	Mounting Type	Supplier Device Package	Sampling Rate (Per Second)	Voltage - Supply [Min]	Voltage - Supply [Max]	Data Interface	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Number of Channels	Voltage Supply Source
Texas Instruments PCMD3180IRTWT	PDM To TDM	Surface Mount	24-WQFN (4x4)	768k	1.65 V 1.7 V 3 V	1.9 V 1.95 V 3.6 V	I2C SPI	125 °C	-40 °C	24-WFQFN Exposed Pad	8	Analog and Digital
Texas Instruments PCMD3180IRTWR	PDM To TDM	Surface Mount	24-WQFN (4x4)	768k	1.65 V 1.7 V 3 V	1.9 V 1.95 V 3.6 V	I2C SPI	125 °C	-40 °C	24-WFQFN Exposed Pad	8	Analog and Digital

Catalog

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:127-dB dynamic range (DR) with high performance 5thorder PDM input117-dB dynamic range (DR) with high performance 4thorder PDM inputChannel summing mode, DR performance with high performance 4thorder PDM input:120-dB, 2-channel summing123-dB, 4-channel summingProgrammable PDM clock output :768 kHz to 6.144 MHzProgrammable output sample rate (fS) :8 kHz to 768 kHzProgrammable channel settings:Digital volume control: –100 dB to 27 dBGain calibration with 0.1-dB resolutionPhase calibration with 163-ns 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 bitsMaster or slave interfaceSingle-supply operation: 3.3 V or 1.8 VI/O-supply operation: 3.3 V or 1.8 VPower consumption for 1.8-V supply:2.9 mW/channel at 16-kHz sample rate2.5 mW/channel at 48-kHz sample rate8-channel PDM microphones simultaneous conversionPDM input to TDM or I2S output converter performance:127-dB dynamic range (DR) with high performance 5thorder PDM input117-dB dynamic range (DR) with high performance 4thorder PDM inputChannel summing mode, DR performance with high performance 4thorder PDM input:120-dB, 2-channel summing123-dB, 4-channel summingProgrammable PDM clock output :768 kHz to 6.144 MHzProgrammable output sample rate (fS) :8 kHz to 768 kHzProgrammable channel settings:Digital volume control: –100 dB to 27 dBGain calibration with 0.1-dB resolutionPhase calibration with 163-ns 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 bitsMaster or slave interfaceSingle-supply operation: 3.3 V or 1.8 VI/O-supply operation: 3.3 V or 1.8 VPower consumption for 1.8-V supply:2.9 mW/channel at 16-kHz sample rate2.5 mW/channel at 48-kHz sample rate

Description

The PCMD3180 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 programable 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 768 kHz. 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 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 or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications. The PCMD3180 is specified from –40°C to +125°C, and is offered in a 24-pin WQFN package. The PCMD3180 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 programable 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 768 kHz. 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 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 or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications. The PCMD3180 is specified from –40°C to +125°C, and is offered in a 24-pin WQFN package.