Datasheet

−0.0001
−0.00008
−0.00006
−0.00004
−0.00002
0
0.00002
0.00004
0.00006
0.00008
0.0001
0.0 0.5 1.0
Frequency (x f
S
)
Amplitude (dB)
G030
−120
−100
−80
−60
−40
−20
0
0 1 2 3 4
Frequency (x f
S
)
Amplitude (dB)
G008
−0.6
−0.4
−0.2
0.0
0.2
0.4
0.6
0.8
1.0
0 20 40 60 80 100 120 140 160 180
Samples
Amplitude (FFS)
G019
PCM5141, PCM5142
www.ti.com SLAS759A –AUGUST 2012–REVISED SEPTEMBER 2012
Table 25. Low latency x4 Interpolation Filter, Dual Rate
Parameter Condition Value (Typical) Value (Max) Units
Filter Gain Pass Band 0 ……. 0.45f
S
±0.001 dB
Filter Gain Stop Band 0.55f
S
….. 3.455f
S
–52 dB
Filter Group Delay 3.5t
S
S
Figure 47. Low latency x4 Interpolation Filter Figure 48. Low latency x4 Interpolation Filter
Frequency Response Impulse Response
Figure 49. Low latency x4 Interpolation Filter Passband Ripple
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