RF Downconverters

6 GHz RF Downconverter

The SC5307A and SC5308A are high performance, triple stage, heterodyne downconverters designed to meet demanding applications such as RF instrumentation, wireless communications, satellite link, software defined radio and signal intelligence. Both modules have input RF frequency ranging from DC to 6 GHz and selectable IF bandwidths of 80 MHz, 160 MHz, and 320 MHz. These wideband modules use a YIG oscillator as their tunable RF LO, which provide excellent phase noise, thus contributing negligible noise to the down-converted RF signal.

26.5 GHz RF Downconverters

The SC5318A is a C to K broadband single-stage downconverter, converting frequencies from 6 GHz to 26.5 GHz down to 50 MHz to 3 GHz. The LO frequency range is from 6 to 26.5 GHz with an input LO range from 6 to 14 GHz. An internal frequency doubler multiplies the input LO range up to 26.5 GHz. This module also features an internal 26.5 GHz synthesized LO, RF preamplifer, and variable gain control making it a compact standalone downconverter module. With the option for an external LO signal, the SC5318A may be configured for SISO applications or paired together for MIMO applications such as ground-based satellite communications, point-to-point radio, and test instrument systems.

6 GHz Direct IQ Demodulators

The SC5312A and SC5313A are 400 MHz to 6 GHz direct IQ demodulators, down converting RF directly to analog In-phase and Quadrature IF or IQ baseband. The DC coupled differential IQ pair may be fed to any dual channel digitizer for analog to digital data conversion. The local oscillator (LO) is supplied by an external source (such as the SC5505A and SC5506A respectively) and its replica may be used to drive another direct IQ downconverter for coherent reception. These modules can also be configured together as an RF signal transceiver.

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