Datasheet

−0.05
−0.04
−0.03
−0.02
−0.01
0.00
0.01
0.02
0.03
0.04
0.05
0.0 0.5 1.0
Frequency (x f
S
)
Amplitude (dB)
G031
−120
−100
−80
−60
−40
−20
0
0 1 2 3 4
Frequency (x f
S
)
Amplitude (dB)
G009
−0.4
−0.2
0.0
0.2
0.4
0.6
0.8
1.0
0 20 40 60 80 100 120 140 160
Samples
Amplitude (FFS)
G020
PCM5100A , PCM5101A , PCM5102A
PCM5100A-Q1 , PCM5101A-Q1 , PCM5102A-Q1
www.ti.com SLAS859C –MAY 2012–REVISED MAY 2015
The normal x4 / x2 / x1 (bypass) interpolation filter is programmed for sample rates from 8 kHz to 384 kHz.
Table 5. Normal x4 Interpolation Filter
Parameter Condition Value (Typ) Value (Max) Units
Filter gain pass band 0 ……. 0.45f
S
±0.02 dB
Filter gain stop band 0.55f
S
….. 7.455f
S
–60 dB
Filter group delay 22t
S
s
Figure 18. Normal x4 Interpolation Filter Frequency Figure 19. Normal x4 Interpolation Filter Impulse
Response Response
Figure 20. Normal x4 Interpolation Filter Passband Ripple
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