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