Converter-C Board - Safran CORTEX RTR NeXt Series User Manual

4.6

Converter-C Board.

Overview: The C-converter board plugged upstream the Tuner board, allows converting a signal of a
particular RF band to IF frequency.
Description: The C-converter board has 2 independent RF channels, based on a generic architecture.
An internal switch systems allows to transmit the RF signal directly to the output or to convert this
signal to a fixed IF frequency with a direct mixing.
The C-Band version is a down frequency conversion (4400-5250 to IF). The RF bandwidth is delimited
by a ceramic filter, the mixing being provide by a Synthesizer, and the global gain is near 0dB.
The synthesizer is designed around a typical low phase noise Fractional-N/Integer-N PLL architecture
with a frequency step of 1MHz.
The FPGA is used as an interface to the PCI express bus and makes easier the control of the board in
the RTR system. The main functions are OL programming, reading and writing data in flash memory
and switching between the two RF channels.
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Radio Telemetry Receiver
User's Manual
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Ref. D104004
Is.Rev 07
Previous Ref.: DTU000567
Date: 21/06/2021
Safran Data Systems
.
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