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Texas Instruments PCM1809 Analog-To-Digital Converter

Texas Instruments PCM1809 Analog-To-Digital Converter (ADC) is a low-power, stereo-channel audio converter with flexible audio interface control options. This ADC offers 2-channel analog microphones or line-in, 104dB differential input, 102dB single-ended input, and sample rates up to 192kHz. The PCM1809 converter features 2VRMS differential full-scale input and integrates a high-performance Phase-Locked Loop (PLL). This analog-to-digital converter supports 32-bit, 2-channel Time-Division Multiplexing (TDM) or 32-bit, 2-channel I2S audio formats. Typical applications include smart speakers, DVD recorders and players, AV receivers, video conference systems, and IP network cameras.

The PCM1809 ADC operates at 3.3V single supply voltage and 3.3V or 1.8V I/O supply. This converter also features an integrated High-Pass Filter (HPF) and supports controller and target mode selection for the audio bus interface operation. The PCM1809 converter operates at -40°C to 105°C temperature range and comes in a 20-pin WQFN package.

Features

  • 2-channel analog microphones or line-in stereo low-power ADC
  • ADC line and microphone differential and single-ended input performance:
    • PCM1809 dynamic range:
      • 104dB differential input
      • 102dB single-ended input
  • -95dB THD+N
  • 2VRMS differential full-scale input
  • Direct coupling:
    • Wide input common mode support
    • AC/DC coupling support
  • ADC sample rate (fS) = 8kHz to 192kHz
  • Hardware pin control configurations
  • Linear-phase or low-latency filter selection
  • Flexible audio serial data interface:
    • Controller or target interface selection
    • 32-bit and 2-channel TDM
    • 32-bit and 2-channel I2S
  • Automatic power-down upon loss of audio clocks
  • Integrated high-performance audio PLL
  • 3.3V single-supply voltage operation
  • 3.3V or 1.8V I/O-supply operation
  • Power consumption for 3.3V AVDD supply:
    • 19.6mW/channel at 16kHz sample rate
    • 21.3mW/channel at 48kHz sample rate

Applications

  • Smart speakers
  • DVD recorders and players
  • AV receivers
  • Video conference systems
  • IP network cameras

Associated Eval Module

Texas Instruments PCM1809EVM Evaluation Module

Facilitates the testing of the capabilities of the PCM1809 ADC.

Learn MoreTexas Instruments PCM1809EVM Evaluation Module hakkında View ProductsTexas Instruments PCM1809EVM Evaluation Module ile ilgili

Simplified Block Diagram

Block Diagram - Texas Instruments PCM1809 Analog-To-Digital Converter

Typical Application Circuit Diagram

Application Circuit Diagram - Texas Instruments PCM1809 Analog-To-Digital Converter
Yayınlandı: 2024-07-19 | Güncellenmiş: 2024-08-09