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Convertidores de audio
ADC de audio

PCM1840

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Convertidor analógico-digital (ADC) de audio de 32 bits y 192 kHz de cuatro canales

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PCM1840

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Detalles del producto

Number of ADC channels 4 Analog inputs 4 Digital audio interface I2S, TDM Control interface H/W Sampling rate (max) (kHz) 192 ADC SNR (typ) (dB) 122 Rating Catalog Analog outputs 0 Operating temperature range (°C) -40 to 125
Number of ADC channels 4 Analog inputs 4 Digital audio interface I2S, TDM Control interface H/W Sampling rate (max) (kHz) 192 ADC SNR (typ) (dB) 122 Rating Catalog Analog outputs 0 Operating temperature range (°C) -40 to 125
WQFN (RTW) 24 16 mm² 4 x 4
  • Multichannel high-performance ADC:
    • 4-channel analog microphones or line-in
  • ADC line and microphone differential input performance:
    • Dynamic range:
      • 123-dB, dynamic range enhancer enabled
      • 113-dB, dynamic range enhancer disabled
    • THD+N: –98 dB
  • ADC differential 2-VRMS full-scale input
  • ADC sample rate (fS) = 8 kHz to 192 kHz
  • Hardware pin control configurations
  • Linear-phase or low-latency filter selection
  • Flexible audio serial data interface:
    • Master or slave interface selection
    • 32-bits, 4-channel TDM
    • 32-bits, 2-channel TDM
    • 32-bits, 2-channel I2S
    • 32-bits, 2-channel left-justified (LJ)
  • Automatic power-down upon loss of audio clocks
  • Integrated high-performance audio PLL
  • Low-noise MICBIAS 2.75-V output
  • Single-supply operation: 3.3 V
  • I/O-supply operation: 3.3 V or 1.8 V
  • Power consumption for 3.3-V AVDD supply:
    • 17.0 mW/channel at 16-kHz sample rate
    • 18.4 mW/channel at 48-kHz sample rate
  • Multichannel high-performance ADC:
    • 4-channel analog microphones or line-in
  • ADC line and microphone differential input performance:
    • Dynamic range:
      • 123-dB, dynamic range enhancer enabled
      • 113-dB, dynamic range enhancer disabled
    • THD+N: –98 dB
  • ADC differential 2-VRMS full-scale input
  • ADC sample rate (fS) = 8 kHz to 192 kHz
  • Hardware pin control configurations
  • Linear-phase or low-latency filter selection
  • Flexible audio serial data interface:
    • Master or slave interface selection
    • 32-bits, 4-channel TDM
    • 32-bits, 2-channel TDM
    • 32-bits, 2-channel I2S
    • 32-bits, 2-channel left-justified (LJ)
  • Automatic power-down upon loss of audio clocks
  • Integrated high-performance audio PLL
  • Low-noise MICBIAS 2.75-V output
  • Single-supply operation: 3.3 V
  • I/O-supply operation: 3.3 V or 1.8 V
  • Power consumption for 3.3-V AVDD supply:
    • 17.0 mW/channel at 16-kHz sample rate
    • 18.4 mW/channel at 48-kHz sample rate

The PCM1840 is a high-performance, Burr-Brown™ audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to four analog channels. The device supports differential line and microphone inputs with 2-VRMS full-scale signal. The device integrates microphone bias voltage, 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), I2S, or left-justified (LJ) audio formats, selectable with the hardware pin level. Additionally, the PCM1840 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 PCM1840 is specified from –40°C to +125°C, and is offered in a 24-pin WQFN package.

The PCM1840 is a high-performance, Burr-Brown™ audio analog-to-digital converter (ADC) that supports simultaneous sampling of up to four analog channels. The device supports differential line and microphone inputs with 2-VRMS full-scale signal. The device integrates microphone bias voltage, 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), I2S, or left-justified (LJ) audio formats, selectable with the hardware pin level. Additionally, the PCM1840 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 PCM1840 is specified from –40°C to +125°C, and is offered in a 24-pin WQFN package.
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Documentación técnica

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* Data sheet PCM1840 Quad Channel, 32-Bit, 192-kHz, Burr-BrownTM Audio ADC datasheet PDF | HTML 01 abr 2020
EVM User's guide PCM1840 Evaluation Module User's Guide (Rev. A) PDF | HTML 26 may 2022

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Placa de evaluación

PCM1840EVM — Módulo de evaluación del ADC de audio de 32 bits y 192 kHz PCM1840

The PCM1840 evaluation module (EVM) allows the user to test the capabilities of the PCM1840 product, which is a hardware-controlled quad-channel high-performance audio analog-to-digital converter (ADC). PCM1840 is intended for use in a wide range of applications (...)

Guía del usuario: PDF | HTML
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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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