SL1710 Datasheet (Mitel Networks Corporation)

SL1710, Quadrature Downconverter

The SL1710 is a quadrature downconverter, intended for high linearity, low noise digital satellite applications.

It contains all the elements necessary, with the exception of the VCO tuning components, to extract baseband I and Q signals from a QPSK or QAM IF input signal.

A block diagram for the SL

SL1710 Quadrature Downconverter Preliminary Information Supersedes October 1996 version in Media IC Handbook HB4599-1.0 DS3842 - 4.1 March 1997 The SL1710 is a quadrature downconverter, intended for use with both Professional and Consumer Digital Satellite Applications.

The device contains high linearity, low noise amplifiers, quadrature mixers, plus an on-chip oscillator, operating between 350MHz and 500MHz, which may be synthesised via the differential prescaler outputs.

An AGC with 18dB gain

SL1710 Features

* s Wide input frequency range (350-500MHz) s On chip oscillator with varactor tuning or SAW resonator operation capability s Nominal 40dB conversion gain from IF input to I and Q outputs s AGC amplifier with 18dB gain control range s I to Q phase match 90°C to ± 2°, gain match better than 1dB s Low i