Abstract:

The SKY73201-364LF is a high performance, programmable, monolithic, clock- referenced, active low pass filter. It is configured as a 6th order Butterworth to provide extremely high stop-band rejection while maximizing pass-band flatness and minimizing group delay distortion. The SKY73201-364LF is programmable in 1 MHz steps, from 1-28 MHz, via the 3-wire Serial Peripheral Interface (SPI). Nearly ideal Butterworth performance is maintained over temperature and process via a proprietary internal calibration circuit which derives its timing accuracy from a 20 or 40 MHz reference clock. The differential output allows for easy integration between modern system components such as mixers, data converters and variable gain amplifiers.