CS5376A データシートの表示（PDF） - Cirrus Logic
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CS5376A Datasheet PDF : 107 Pages
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CS5376A
Bits
23:20
19:16
15:12
11:8
Selection
0000
0000
IIR2
IIR1
7:4
FIR2
3:0
FIR1
Bits 15:12
0000
0001
0010
0011
0100
IIR2 Coefficients
3 Hz @ 2000 SPS
3 Hz @ 1000 SPS
3 Hz @ 500 SPS
3 Hz @ 333 SPS
3 Hz @ 250 SPS
Bits 11:8
0000
0001
0010
0011
0100
IIR1 Coefficients
3 Hz @ 2000 SPS
3 Hz @ 1000 SPS
3 Hz @ 500 SPS
3 Hz @ 333 SPS
3 Hz @ 250 SPS
Bits 3:0
0000
0001
FIR1 Coefficients
Linear Phase
Minimum Phase
Bits 7:4
0000
0001
FIR2 Coefficients
Linear Phase
Minimum Phase
Figure 3. FIR and IIR Coefficient Set Selection Word
Test Bit Stream Characteristic Equation:
(Signal Freq) * (# TBS Data) * (Interpolation + 1) = Output Rate
Example: (31.25 Hz) * (1024) * (0x07 + 1) = 256 kHz
Signal
Frequency
(TBSDATA)
10.00 Hz
10.00 Hz
25.00 Hz
25.00 Hz
31.25 Hz
31.25 Hz
50.00 Hz
50.00 Hz
125.00 Hz
125.00 Hz
Output
Rate
(TBSCLK)
256 kHz
512 kHz
256 kHz
512 kHz
256 kHz
512 kHz
256 kHz
512 kHz
256 kHz
512 kHz
Output Rate
Selection
(RATE)
0x4
0x5
0x4
0x5
0x4
0x5
0x4
0x5
0x4
0x5
Interpolation
Selection
(INTP)
0x18
0x31
0x09
0x13
0x07
0x0F
0x04
0x09
0x01
0x03
Table 2. TBS Configurations Using On-Chip Data
11
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