Datasheet
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2
Magnitude – dB
FrequencyNormalizedtof
S
ADCChannelResponseforDecimationFilter A
(RedLineCorrespondsto –44dB)
TLV320AIC3100
www.ti.com
SLAS667A –NOVEMBER 2009–REVISED MAY 2012
5.4.4.4.2 Decimation Filter B
Filter B is intended to support sampling rates up to 96 kHz at an oversampling ratio of 64.
Table 5-22. ADC Decimation-Filter-B Specifications
Parameter Condition Value (Typical) Unit
AOSR = 64
Filter gain pass band 0…0.39 f
S
±0.077 dB
Filter gain stop band 0.60 f
S
…32 f
S
–46 dB
Filter group delay 11/f
S
s
Pass-band ripple, 8 ksps 0…0.39 f
S
0.076 dB
Pass-band ripple, 44.1 ksps 0…0.39 f
S
0.06 dB
Pass-band ripple, 48 ksps 0…0.39 f
S
0.06 dB
Pass-band ripple, 96 ksps 0…20 kHz 0.11 dB
Figure 5-14. ADC Decimation-Filter-B Frequency Response
Copyright © 2009–2012, Texas Instruments Incorporated APPLICATION INFORMATION 39
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