SLOU563A april   2023  – september 2023 TAS6424R-Q1

 

  1.   1
  2.   Evaluation Module
  3.   Trademarks
  4. 1Hardware Overview
    1. 1.1 TAS6424R-Q1 Evaluation Module Description
  5. 2Software Overview
    1. 2.1 PurePath Console 3 (PPC3) Access and Description
    2. 2.2 PurePath Console 3 – TAS6424E EVM Home Window
    3. 2.3 PurePath Console 3 – TAS6424E EVM Register Map Window
    4. 2.4 PurePath Console 3 – TAS6424E EVM Monitor and Control Window
    5. 2.5 TAS6424R-Q1 EVM Start-Up Procedure
      1. 2.5.1 TAS6424R-Q1 EVM Setup
      2. 2.5.2 TAS6424R-Q1 Settings on Device Monitor and Control Window
        1. 2.5.2.1 Global Control Section
        2. 2.5.2.2 Channel Control Section
        3. 2.5.2.3 Miscellaneous Control Section
        4. 2.5.2.4 Faults and Warnings Section
        5. 2.5.2.5 AC Load Diagnostics Section
        6. 2.5.2.6 DC Load Diagnostics Section
      3. 2.5.3 TAS6424R-Q1 Settings on Register Map Window
      4. 2.5.4 I2C Window
  6. 3Schematic, Board Layouts, and Bill of Materials
    1. 3.1 TAS6424R-Q1 EVM Schematic
    2. 3.2 TAS6424R-Q1 EVM Layouts
    3. 3.3 Bill of Materials
  7. 4Revision History

2.5.2.3 Miscellaneous Control Section

There are miscellaneous settings that are available on the GUI for easy access.

  1. OSR is the oversampling bit. For lower idle noise, 64X OSR is set as default. For wider bandwidth, 128X OSR can be used. 64X OSR is recommended.
  2. TAS6424R-Q1 supports parallel Bridge-Tied Load. Channels 1 and 2 can be one PBTL channel and channels 3 and 4 can be the other. Before setting a set of channels to PBTL mode, connect the (+) terminals as PBTL channel (+) and the (-) terminals as PBTL channel (-). Then connect the speaker (+) to the PBTL channel (+) and connect the speaker (-) to the PBTL channel (-).
  3. The overcurrent has two levels. The lower level is 1. The default is level 2. When running at a lower output current, the OC level can be set to 1. I2S and TDM are automatically detected. Use the pull-down menu from the Input Format box to manually select the audio format.
  4. If the sampling frequency is greater than 48 kHz, then select 96 kHz from the Input FS pull-down.
  5. Overtemperature warning can be programmed by using the pull-down menu to choose the OTW temperature. The default setting is 120°C.
  6. The output switching frequency (FSW) or Pulse Width Modulation frequency (PWM) is set at 2.1 MHz. The pull-down menu on the PWM FRQ box is used to choose a lower FSW. The LC value must be adjusted when FSW is changed.
  7. The offset phase for each channel is set at 45 degrees and helps lower the ripple current on the power supply, as not all the channels switch at the same time. To choose a different phase offset, use the pull-down menu on the Phase box.
  8. There are four gain settings in TAS6424R-Q1: low, normal, high and maximum. The default setting is high. However, the recommended setting is normal for lower noise performance for driving speakers at
    14.4 VDC. The gain setting can be selected via the drop-down menu in the Gain box.
  9. The volume slew rate is measured with the sampling frequency. The default setting is 1 period of the sampling frequency (FSYNC or FS). This rate can be selected from 1 to 8 sampling periods with the drop-down menu under Vol Rate box.
GUID-A507A773-9846-4004-BC6C-E5536B706B8B-low.png Figure 2-12 Miscellaneous Control Section