Datasheet


SLAS412− DECEMBER 2003
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54
AUDIO CODEC FILTER FREQUENCY RESPONSES
Pass-Band Frequency Response of ADC Digital Filter
Frequency Response of Full ADC Channel Digital Filter at Fs = 48 kHz
0.02
0
−0.02
−0.04
−0.06
−0.06
−0.1
−0.12
−0.14
−0.16
−0.18
Magnitude − dB
0.2
0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
Frequency − Hz
x 10
4
Frequency Response of ADC High-Pass Filter (Fcut-off = 0.0045 Fs)
0
−2
−4
−6
−8
−10
−12
−14
0 500 1000 1500 2000 2500 3000 3500 4000
4500
Frequency Response of ADC HPF at Fs = 48 kHz With −3 dB at 0.0045 Fs
Magnitude − dB
Frequency − Hz