Switchable SAW Filter K6257K Application Notes Author: Updated: Department: Abstract: Fröhlich 26.08.98 OFW E UE K6257K is designed for quasi-split-sound, multistandard applications. A BG channel with reduced group delay predistortion and a double nyquist path with flat group delay are selectable. In this application note, a switching circuit with a test layout is proposed and the results are evaluated. Application note SAW K6257K -1- OFW E UE Switchable SAW Filter K6257K - Application Note.