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–
Frequency Normalized With Respect to f
S
ADC Channel Response for Decimation Filter A
(Red line corresponds to –44 dB)
TLV320ADC3101
www.ti.com ...................................................................................................................................... SLAS553A – NOVEMBER 2008 – REVISED SEPTEMBER 2009
Decimation Filter B
Filter B is intended to support sampling rates up to 96 kHz at an oversampling ratio of 64.
Table 11. Specification for ADC Decimation Filter B
Parameter Condition Value (Typical) Unit
AOSR = 64
Filter gain pass band 0 – 0.39 f
S
± 0.077 dB
Filter gain stop band 0.6 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, 44.18 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 45. ADC Decimation Filter B, Frequency Response
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