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

3.1.1.3 Sampling Frequency

Under the Windows operating system, select a specific sampling frequency because the sampling frequency cannot be changed on nearly all application software.

To set the DAC sampling frequency:

  1. Open the Sound options from the Control Panel. (Start→Control Panel→Sound)
  2. Open the speaker properties of the USB audio codec from the Playback options and select the Advanced tab, as Figure 4-5 illustrates.
  3. Select the desired DAC sampling frequency from seven options: 8 kHz, 11.025 kHz,16 kHz, 22.5 kHz, 32 kHz, 44.1 kHz, and 48 kHz.
GUID-07FE7406-9202-4FAD-AD52-5FAD0FD32383-low.gifFigure 3-5 Speakers Properties—Advanced Tab (Windows)

To set the ADC sampling frequency:

  1. Open the Sound options from the Control Panel. (Start→Control Panel→Sound)
  2. Open the microphone properties of the USB audio codec from the Record options and select the Advanced tab, as Figure 4-6 illustrates.
  3. Select the desired ADC sampling frequency from seven options: 8 kHz, 11.025 kHz,16 kHz, 22.5 kHz, 32 kHz, 44.1 kHz, and 48 kHz.
GUID-BF47C157-12AE-4E19-8BBA-3018BAC38FAD-low.gifFigure 3-6 Microphone Properties—Advanced Tab (Windows)