SBAA494A May   2021  – April 2022 PCM3120-Q1 , PCM5120-Q1 , PCM6120-Q1 , TLV320ADC3120 , TLV320ADC5120 , TLV320ADC6120

 

  1.   Trademarks
  2. 1Introduction
  3. 2Processing Blocks of TLV320ADCx120 and PCMx120-Q1
    1. 2.1 Decimation Filter Response
      1. 2.1.1 Supported Sample Rates
    2. 2.2 AGC, DRE, or DRC
      1. 2.2.1 Supported Sample Rates
      2. 2.2.2 Channel Assignment
    3. 2.3 Channel Summer, Digital Mixer, and Bi-quads
  4. 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
  5. 4Example Configurations
  6. 5Related Documentation
  7.   A Revision History

2.1.1 Supported Sample Rates

The default response for the decimation filter is linear phase and is supported for all sample rates from 8 kHz to 768 kHz. The low latency and ultra-low latency decimation filters are supported for a subset of the sample rates as shown in Table 2-2. Unsupported decimation filters are marked as 'NA'. For supported decimation 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
8 or 7.3544NA
16 or 14.7444
24 or 22.05444
32 or 29.4444
48 or 44.1444
96 or 88.2444
192 or 176.4433
384 or 352.82NA2
768 or 705.61NANA