PCM9211
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SBAS495 –JUNE 2010
The relationship between SFSOUT[3:0] outputs and the range of sampling frequency fS is shown in Table 8.
Table 8. Calculated Biphase Sampling Frequency Output
CALCULATED SAMPLING FREQUENCY OUTPUT(1)
ACTUAL SAMPLING
NOMINAL fS
Out of range
8 kHz
FREQUENCY RANGE
Out of range
SFSOUT3
SFSOUT2
SFSOUT1
SFSOUT0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
7.84 kHz to 8.16 kHz
11.025 kHz
12 kHz
10.8045 kHz to 11.2455 kHz
11.76 kHz to 12.24 kHz
15.68 kHz to 16.32 kHz
21.609 kHz to 22.491 kHz
23.52 kHz to 24.48 kHz
31.36 kHz to 32.64 kHz
43.218 kHz to 44.982 kHz
47.04 kHz to 48.96 kHz
62.72 kHz to 65.28 kHz
86.436 kHz to 89.964 kHz
94.08 kHz to 97.92 kHz
125.44 kHz to 130.56 kHz
172.872 kHz to 179.928 kHz
188.16 kHz to 195.84 kHz
16 kHz
22.05 kHz
24 kHz
32 kHz
44.1 kHz
48 kHz
64 kHz
88.2 kHz
96 kHz
128 kHz
176.4 kHz
192 kHz
(1) The flag SFSOUT[3:0] is output from the register and MPIOs are assigned as SFSOUT[3:0].
'0' or '1' indicates the register output data. The symbol 'H' or 'L' refers to the MPIO output electrical signal.
The Biphase Sampling Frequency Calculator is also used for restricting the type of data that can be received.
1. If Register 27h/MSK128 is set to '1', the PCM9211 does not accept 128-kHz sampling frequency data
2. If Register 27h/MSK64 is set to '1', the PCM9211 does not accept 64-kHz sampling frequency data.
3. If Register 27h/NOMLMT is set to '1', the PCM9211 only accepts the nominal audio sampling frequency
within ±2%.The nominal audio sampling frequencies are 8 kHz, 11.025 kHz, 12 kHz, 16 kHz, 22.05 kHz, 24
kHz,32 kHz, 44.1 kHz, 48 kHz, 64 kHz, 88.2 kHz, 96 kHz, 128 kHz, 176.4 kHz, and 192 kHz.
4. For Register 27h/HILMT[1:0] and Register 27h/LOLMT[1:0]: These registers are used for setting a higher or
lower limit to the acceptable sampling frequency.
Register 21h/RXFSRNG is used for global control of the acceptable sampling frequencies. If normal mode is
selected, the range of acceptable sampling frequency is restricted from 28 kHz to 108 kHz. If wide mode is
selected, the range is from 7 kHz to 216 kHz.
Copyright © 2010, Texas Instruments Incorporated
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