PCMD3140-Q1

ACTIVO

Convertidor automotriz, con relación señal-ruido (SNR) de 127 dB, 768 kHz, 4 canales, entrada de mod

Detalles del producto

Number of ADC channels 4 Sampling rate (max) (kHz) 768 Analog inputs 0 Control interface I2C Digital audio interface I2S, L, TDM ADC SNR (typ) (dB) 127 Rating Automotive Operating temperature range (°C) -40 to 125 Analog outputs 0
Number of ADC channels 4 Sampling rate (max) (kHz) 768 Analog inputs 0 Control interface I2C Digital audio interface I2S, L, TDM ADC SNR (typ) (dB) 127 Rating Automotive Operating temperature range (°C) -40 to 125 Analog outputs 0
WQFN (RTE) 20 9 mm² (3 mm × 3 mm)
  • 4-channel PDM microphones simultaneous conversion
  • PDM input to TDM or I2S output converter performance:
    • 127-dB dynamic range (DR) with high-performance, 5th-order PDM input
    • 117-dB dynamic range (DR) with high-performance, 4th-order PDM input
  • Channel summing mode, DR performance with high-performance, 4th-order PDM input:
    • 120-dB, 2-channel summing
  • Programmable PDM clock output:
    • 768 kHz to 6.144 MHz
  • Programmable output sample rate (fS):
    • 8 kHz to 768 kHz
  • Programmable channel settings:
    • Digital volume control: –100 dB to 27 dB
    • Gain calibration: 0.1-dB resolution
    • Phase calibration: 163-ns resolution
  • Microphone bias or supply voltage generation
  • Voice activity detection (VAD)
  • Low-latency signal processing filter selection
  • Programmable HPF and biquad digital filters
  • I2C control
  • Integrated high-performance audio PLL
  • Automatic clock divider setting configurations
  • Audio serial data interface:
    • Format: TDM, I2S, or left-justified (LJ)
    • Word length: 16 bits, 20 bits, 24 bits, or 32 bits
    • Master or slave interface
  • Single-supply operation: 3.3 V or 1.8 V
  • I/O-supply operation: 3.3 V or 1.8 V
  • Power consumption for 1.8-V supply:
    • 2.8mW/channel at 16-kHz sample rate
    • 3.6 mW/channel at 48-kHz sample rate
  • 4-channel PDM microphones simultaneous conversion
  • PDM input to TDM or I2S output converter performance:
    • 127-dB dynamic range (DR) with high-performance, 5th-order PDM input
    • 117-dB dynamic range (DR) with high-performance, 4th-order PDM input
  • Channel summing mode, DR performance with high-performance, 4th-order PDM input:
    • 120-dB, 2-channel summing
  • Programmable PDM clock output:
    • 768 kHz to 6.144 MHz
  • Programmable output sample rate (fS):
    • 8 kHz to 768 kHz
  • Programmable channel settings:
    • Digital volume control: –100 dB to 27 dB
    • Gain calibration: 0.1-dB resolution
    • Phase calibration: 163-ns resolution
  • Microphone bias or supply voltage generation
  • Voice activity detection (VAD)
  • Low-latency signal processing filter selection
  • Programmable HPF and biquad digital filters
  • I2C control
  • Integrated high-performance audio PLL
  • Automatic clock divider setting configurations
  • Audio serial data interface:
    • Format: TDM, I2S, or left-justified (LJ)
    • Word length: 16 bits, 20 bits, 24 bits, or 32 bits
    • Master or slave interface
  • Single-supply operation: 3.3 V or 1.8 V
  • I/O-supply operation: 3.3 V or 1.8 V
  • Power consumption for 1.8-V supply:
    • 2.8mW/channel at 16-kHz sample rate
    • 3.6 mW/channel at 48-kHz sample rate

The PCMD3140-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 four 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 the I2C interface. Additionally, the PCMD3140-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 or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.

The PCMD3140-Q1 is specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.

The PCMD3140-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 four 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 the I2C interface. Additionally, the PCMD3140-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 or 1.8 V, make the device an excellent choice for space-constrained audio systems in far-field microphone recording applications.

The PCMD3140-Q1 is specified from –40°C to +125°C, and is offered in a 20-pin WQFN package.

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* Hoja de datos PCMD3140-Q1 Quad-Channel, PDM Input to TDM or I2S Output Converter datasheet (Rev. A) PDF | HTML 12/07/2022

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Placa de evaluación

PCMD3140Q1EVM-PDK — Módulo de evaluación PCMD3140-Q1 para convertidor de 4 canales de entrada PDM a salida TDM o I²S

El módulo de evaluación (EVM) PCMD3140Q1EVM-PDK se utiliza para probar las capacidades del dispositivo PCMD3140-Q1. El PCMD3140-Q1 es un convertidor de alto rendimiento de entrada de modulación por densidad de pulsos (PDM) a multiplexación por división en el tiempo (TDM) o salida I²S que admite el (...)

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