Description
The SL1925 is a wideband quadrature converter operating from 950 to 2150 MHz, intended primarily for application in satellite tuners.
The device contains all elements necessary, with the exception of local oscillator sustaining network, to fabricate a high performance I(n-phase) & Q(uadrature) phase splitter and downconverter optimised for systems containing RF AGC gain control. The device allows for systems containing higher power analog interferers. For most applications RF tunable filtering is not essential.

Features
● Single chip system for direct quadrature down
   conversion from L-band
● High signal handling capability for minimum
   external component count application, requires
   external RF AGC of 30dB
● Compatible with DSS and DVB system
   requirements
● Excellent gain and phase match up to 30MHz
   baseband
● High output referred linearity for low distortion and
   multi channel application
● Fully balanced low radiation design
● Integral RF AGC amplifier
● Two selectable varactor tuned local oscillators
   with buffered output for driving external
   synthesiser loop
● ESD protection (Normal ESD handling procedures
   should be observed)

Applications
● Satellite receiver systems
● Data communications systems