SBAA381A April   2019  – January 2024 TLV320ADC3140 , TLV320ADC5140 , TLV320ADC6140

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Processing Blocks of TLV320ADCx140/PCMx140-Q1
    1. 2.1 Decimation Filter Response
      1. 2.1.1 Supported Sample Rates
    2. 2.2 AGC or DRE
      1. 2.2.1 Supported Sample Rates
      2. 2.2.2 Channel Assignment
    3. 2.3 Channel Summer, Digital Mixer, and Bi-quads
  6. 3Processing Blocks Supported for Different Sample Rates
    1. 3.1 8 kHz Sample Rate
    2. 3.2 16 kHz-48 kHz Sample Rate
    3. 3.3 96 kHz Sample Rate
    4. 3.4 192 kHz Sample Rate
    5. 3.5 384 kHz Sample Rate
    6. 3.6 768 kHz Sample Rate
  7. 4Example Configurations
  8. 5References
  9.   Revision History

3.4 192 kHz Sample Rate

All three decimation filter options are supported for 192 kHz operation.

Figure 3-4 shows the channel combinations supported for 192 kHz sample rate with linear phase decimation filter response when DRE or AGC is enabled. Figure 3-5 shows the combinations supported without AGC or DRE. Bi-quads, channel summers, and digital mixer are supported with the linear phase decimation filter option.

GUID-2D60AA1A-B23D-4F5A-BA28-34EBCE98FD2F-low.pngFigure 3-4 Channel Combinations for 192 kHz Linear Phase Filter with AGC/DRE Enabled
GUID-DDC315D6-0F1D-4BD7-A065-DED5933DEC0A-low.pngFigure 3-5 Channel Combinations for 192 kHz Linear Phase Filter with AGC/DRE Disabled

For the low latency (and ultra-low latency) decimation filter response option, a maximum of three channels are supported when AGC or DRE is disabled. Only one channel is supported when AGC or DRE is enabled. Bi-quads, channel summers, and digital mixer are not supported for this mode.