Datasheet

−0.00010
−0.00008
−0.00006
−0.00004
−0.00002
0.00000
0.00002
0.00004
0.00006
0.00008
0.00010
0.0 0.1 0.2 0.3 0.4 0.5
Frequency (x f
S
)
Amplitude (dB)
G033
−120
−100
−80
−60
−40
−20
0
0 1 2 3 4
Frequency (x f
S
)
Amplitude (dB)
G011
−0.6
−0.4
−0.2
0.0
0.2
0.4
0.6
0.8
1.0
0 50 100 150 200 250 300 350 400
Samples
Amplitude (FFS)
G022
PCM5100, PCM5101, PCM5102
www.ti.com SLAS764B –MAY 2011–REVISED SEPTEMBER 2012
The low-latency x8 / x4 / x2 / x1(bypass) Interpolation filter is programmed in 256 cycles 1 sample time (t
S
) for
sample rates from 8kHz to 384kHz.
Table 12. Low latency x8 Interpolation Filter
Parameter Condition Value (Typ) Units
Filter Gain Pass Band 0 ……. 0.45f
S
±0.0001 dB
Filter Gain Stop Band 0.55f
S
….. 7.455f
S
–52 dB
Filter Group Delay 3.5t
S
s
Figure 25. Low latency x8 Interpolation Filter Figure 26. Low latency x8 Interpolation Filter
Frequency Response Impulse Response
Figure 27. Low latency x8 Interpolation Filter Passband Ripple
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