PSC-4490 Datasheet, PDF (1/2 Pages) Aeroflex Circuit Technology – 22.6 MHZ NYQUIST BANDPASS FILTER FOR DIGITAL TO ANALOG CONVERTER

Precision Supercomponents For Critical Applications
PSC-4490
22.6 MHZ NYQUIST BANDPASS
FILTER FOR DIGITAL TO
ANALOG CONVERTER
FEATURES
• INVERSE SINC, SQUARE ROOT NYQUIST
( ARBITRARY SHAPING AVAILABLE)
• FLAT GROUP DELAY
• SHARP ATTENUATION
• COMPACT SIZE
• FREQUENCY RANGE; 1 MHZ - 3000 MHZ
DESCRIPTION
The Comstron Model PSC-4490 is a Nyquist bandpass
filter used in a DAC( digital to analog converter). The
purpose of the filter is to normalize the amplitude
response of an input (Sin x)/x signal spectrum, and
to reject unwanted frequencies while maintaining low
group delay variation in the passband. The equalizing
shape over the passband is |x/sin x|² where x = ⁽---^π----^f--⁾
fs
and fs=50.0 MSPS (sampling rate).
PSC-4490