SLAAEG6A November   2023  – September 2024 TAA5212 , TAA5242 , TAA5412-Q1 , TAC5111 , TAC5111-Q1 , TAC5112 , TAC5112-Q1 , TAC5142 , TAC5211 , TAC5212 , TAC5212-Q1 , TAC5242 , TAC5311-Q1 , TAC5312-Q1 , TAC5411-Q1 , TAC5412-Q1 , TAD5112 , TAD5112-Q1 , TAD5142 , TAD5212 , TAD5212-Q1 , TAD5242

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Operating Modes for the Clocking
    1. 2.1 Automatic Modes of Operation
  6. 3Clocking Modes
    1. 3.1 Auto Primary BCLK Ratio
    2. 3.2 Auto Secondary BCLK Ratio
    3. 3.3 Auto MCLK Ratio
    4. 3.4 Auto MCLK Fixed
    5. 3.5 Custom Mode and Semi Automatic Mode of Operation
      1. 3.5.1 Semi-Automatic Mode
    6. 3.6 Additional Clocks
      1. 3.6.1 PDM Clocks
      2. 3.6.2 Boost Clock
      3. 3.6.3 SAR Clock
      4. 3.6.4 CLKOUT
  7. 4Clocking in Hardware Controlled Devices
  8. 5Revision History

3.5.1 Semi-Automatic Mode

At times there is a need to work with Non-Standard Clock Rates. To enable detection of a nonstandard clock rate, the frequency range has to be specified, see Table 3-11 and Table 3-12. This specification can be done by setting the following registers.

  • PASI_SAMP_RATE(5..O) in Register 0x32
  • SASI_SAMP_RATE(5..O) in Register 0x33

After defining the settings, the automatic configuration functions if the incoming FSYNC frequency is matching with the sample rate setup in 0x32 and 0x33.

Table 3-11 Frequency Ranges
S.No Fs Bin (Hz) Oscillator Count Range
Min Typical Max Min Max
1 670320 768000 806400 12 21
2 536256 614400 645120 15 26
3 446880 512000 537600 18 30
4 383040 438857.14 460800 22 35
5 335160 384000 403200 25 40
6 297920 341333.33 358400 28 45
7 268128 307200 322560 32 50
8 223440 256000 268800 38 59
9 191520 219428.57 230400 45 69
10 167580 192000 201600 52 78
11 148960 170666.67 179200 58 88
12 134064 153600 161280 65 98
13 111720 128000 134400 78 117
14 95760 109714.29 115200 92 136
15 83790 96000 100800 105 155
16 74480 85333.33 89600 118 175
17 67032 76800 80640 132 194
18 55860 64000 67200 158 232
19 47880 54857.14 57600 185 271
20 41895 48000 50400 211 309
Table 3-12 Frequency Ranges
S.No Fs Bin (Hz) Oscillator Count Range
Min Typical Max Min Max
21 37240 42666.67 44800 238 348
22 33516 38400 40320 265 386
23 27930 32000 33600 318 463
24 23940 27428.57 28800 371 540
25 20947.50 24000 25200 424 617
26 18620 21333.33 22400 478 694
27 16758 19200 20160 531 771
28 13965 16000 16800 637 925
29 11970 13714.29 14400 744 1079
30 10473.75 12000 12600 850 1233
31 9310 10666.67 11200 957 1387
32 8379 9600 10080 1063 1541
33 6982.50 8000 8400 1276 1849
34 5985 6857.14 7200 1489 2157
35 5236.88 6000 6300 1702 2465
36 4655 5333.33 5600 1915 2773
37 4189.50 4800 5040 2127 3081
38 3491.25 4000 4200 2553 3696
39 2992.50 3428.57 3600 2979 4312
40 2618.44 3000 3150 3405 4928