Datasheet

−0.2
−0.15
−0.1
−0.05
0
0.05
0.1
0.15
0.2
0 0.5 1 1.5 2
Frequency ( × f
S
)
Amplitude (dB)
G007
−120
−100
−80
−60
−40
−20
0
0 1 2 3 4
Frequency ( × f
S
)
Amplitude (dB)
G001
−0.4
−0.2
0
0.2
0.4
0.6
0.8
1
0 10 20 30 40 50
Samples
Amplitude (FFS)
G004
PCM5141, PCM5142
www.ti.com SLAS759A –AUGUST 2012–REVISED SEPTEMBER 2012
Table 29. Asymmetric FIR x2 Interpolation Filter, Quad Rate
Parameter Condition Value (Typical) Value (Max) Units
Filter Gain Pass Band 0 ……. 0.40f
S
±0.05 dB
Filter Gain Stop Band 0.72f
S
….. 1.28f
S
–50 dB
Filter Group Delay 1.2t
S
S
Figure 59. Asymmetric FIR x2 Interpolation Filter Figure 60. Asymmetric FIR x2 Interpolation Filter
Frequency Response, Quad Rate Impulse Response, Quad Rate
Figure 61. Asymmetric x2 Interpolation Filter Passband Ripple, Quad Rate
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