SBAA381B April   2019  – May 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. 6Revision History

2.1.1 Supported Sample Rates

The response of the default decimation filter is linear phase. It is supported for all sample rates from 8 kHz to 768 kHz. The low latency and ultra-low latency responses are supported for a subset of the sample rates as shown in Table 2-2. Unsupported filters are marked as 'NA'. For supported filters, Table 2-2 lists the maximum channel count. Note that to support the channel count shown in Table 2-2, certain processing blocks may have to be disabled, as shown in Section 3.

Table 2-2 Maximum Channel Count for Decimation Filters
SAMPLE RATE (kHz)LINEAR PHASELOW LATENCYULTRA-LOW LATENCY
822NA
16222
24222
32222
48222
96222
192222
3842NA2
7681NANA