Datasheet

ADAU1381
Rev. B | Page 17 of 84
TYPICAL PERFORMANCE CHARACTERISTICS
0
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
MAGNITUDE (dBFS)
FREQUENCY (NORMALIZED TO f
S
)
08313-009
Figure 9. ADC Decimation Filter, 64× Oversampling,
Normalized to f
S
0.04
0.02
0
–0.02
–0.04
–0.06
0.400.350.300.250.200.150.100.050
MAGNITUDE (dBFS)
FREQUENCY (NORMALIZED TO f
S
)
08313-010
Figure 10. ADC Decimation Filter Pass-Band Ripple, 64× Oversampling,
Normalized to f
S
0
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
MAGNITUDE (dBFS)
FREQUENCY (NORMALIZED TO f
S
)
08313-011
Figure 11. ADC Decimation Filter, 128× Oversampling,
Normalized to f
S
0.10
–0.10
–0.08
–0.06
–0.04
–0.02
0
0.02
0.04
0.06
0.08
0 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50
MAGNITUDE (dBFS)
FREQUENCY (NORMALIZED TO f
S
)
08313-012
Figure 12. ADC Decimation Filter Pass-Band Ripple, 128× Oversampling,
Normalized to f
S
0
–100
–90
–80
–70
–60
–50
–40
–30
–20
–10
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
MAGNITUDE (dBFS)
FREQUENCY (NORMALIZED TO f
S
)
08313-013
Figure 13. ADC Decimation Filter, Double-Rate Mode,
Normalized to f
S
0.04
0.02
0
–0.02
–0.04
–0.06
0.400.350.300.250.200.150.100.050
MAGNITUDE (dBFS)
FREQUENCY (NORMALIZED TO f
S
)
08313-014
Figure
14. ADC Decimation Filter Pass-Band Ripple, Double-Rate Mode,
Normalized to f
S