ML6420
ANALOG IN
ADC
SIGNAL
PROCESSING
DAC
ML6420
5.5MHz TYP
F0 CLOCK
Figure 16. Video Processing System with
Monolithic Analog Anti-Alias Filter
ANALOG OUT
ML6420/ML6422 FILTER ROLLS-OFF
ALL ERRORS ABOVE F0/2
DESIRED PASSBAND
SIGNAL CONTENT
ALIASING ELIMINATED
WITHOUT INCREASING
CLOCK RATES
0Hz
F0/2
F0
Figure 17. Analog Filtering in the Frequency Domain
SAMPLING CLOCK
AT OUTPUT
ML6420/ML6422 ACHIEVES VIRTUALLY
SAME RESULTS AS DSP FILTERS.
0
t
Figure 18. Analog Filtering in the Time Domain
19