SBAU141A January   2009  – April 2024 PCM2912A

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Pin Assignments and Terminal Functions
    2. 2.2 Interface and Connections
  9. 3Software
    1. 3.1 Software Setup Guide
      1. 3.1.1 Basic Operating Setup for Windows 10
        1. 3.1.1.1 Basic Setup Before Evaluation
        2. 3.1.1.2 Volume and Mute Settings
        3. 3.1.1.3 Sampling Frequency
      2. 3.1.2 Basic Operating Setup for Mac OS
        1. 3.1.2.1 Basic Setup Before Evaluation
        2. 3.1.2.2 Volume Settings
        3. 3.1.2.3 Sampling Frequency
  10. 4Implementation Results
    1. 4.1 Evaluation Setup
    2. 4.2 Performance Data and Results
      1. 4.2.1 Measurements for Dynamic Characteristics
      2. 4.2.2 Playback Performance
      3. 4.2.3 Recording Performance
  11. 5Hardware Design Files
    1. 5.1 Schematics
    2. 5.2 PCB Layout
    3. 5.3 Bill of Materials (BOM)
  12. 6Additional Information
    1. 6.1 Trademarks
  13. 7Related Documentation
  14. 8Revision History

Features

Major features of the PCM2912A include:

  • Analog Front End:
    • Microphone amplifier (+20 dB gain)
    • Mono input
  • Analog Back End:
    • Stereo/Mono headphone amplifier or line output with volume
  • Analog Performance:
    • Dynamic range: 90 dB (DAC)
    • Dynamic range: 90 dB (ADC)
    • 25-mW headphone output at RL = 16 Ω
  • Power-Supply Voltage
    • Single power supply of 5.0 V (VBUS)
  • Low Power Dissipation:
    • 425 mW at analog-to-digital converter (ADC) and digital-to-analog converter (DAC) operation, 44.1 kHz
    • 0.8 mW in Suspend mode
  • Sampling Frequency: 8 kHz, 11.025 kHz, 16 kHz, 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz for ADC and DAC
  • Programmable Function:
    • –76-dB to 0-dB gain for analog outputs
    • –12-dB to +30-dB gain for analog inputs
    • –76-dB to 0-dB gain for sidetone
    • 0-dB/20-dB gain for microphone amplifier
    • High-pass filter: 0.078 ×fS cutoff frequency
  • Package: 32-pin TQFP
  • Operating Temperature Range: –25°C to +85°C