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

Recording Performance

The DEM-PCM2912A EVM playback performance presented in this section was obtained under the following conditions:

  • fS = 44.1 kHz
  • Input PGA (Microphone input volume): 0 dB
  • Jumper setting: set S1-1 to Unmute (OFF), S1-2 to 100 mA (ON), and S1-3 to 0 dB (ON)
  • Application software for playback: Sound Recorder, Media Player and ITunes for Windows Vista/XP; QuickTime and ITunes for Mac OS X.
  • Use analog input data provided by the AP2 analog generator (SYS-2722) with unbalanced floating ground setting.

Configure the equipment as shown in Figure 5-2.

GUID-C296F499-05F5-46A5-B51B-121521CAA2CC-low.gifFigure 4-2 DEM-PCM2912A EVM Configuration for Recording Performance Measurement when Recording Data
Table 4-4 Line Input Recording Performance
Power SupplyPerformanceFilter SettingDOUT
5.0 VTHD+N (–1 dB at 1 kHz)400 Hz to 20 kHz LP0.008%
SNR (BPZ input)400 Hz to 20 kHz LP
+ A-weighting
92.5 dB
DR (–60 dB input)400 Hz to 20 kHz LP
+ A-weighting
90.5 dB