Schematics

Schematics of Synthesizer-Transmitter Unit, model MK3-PW-PA-TX

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Frequency Doppler Radar Synthesizer-Transmitter Unit: Operational Description”, April 2022

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Figure 1. Schematics of the Synthesizer-Transmitter Unit.

See Table 1 for list of components and references.

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Schematics of Synthesizer-Transmitter Unit, model MK3-PW-PA-TX The Synthesizer-Transmitter Unit is based on commercial off-the-shelf modules and contains: (i) an ultra-low phase noise reference oscillator (OCXO), (ii) direct digital signal synthesizers and controller (DDS-FPGA), (iii) a power amplifier (PA), (iv) an anti-harmonic filter (LPF), (v) power supplies (PS) and (vi) power line filters (RFI).
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OCXO AD9512 Primary Clock Buffer / Divider CLK IN AD9854 DDS C Clock Remap SXLP-30+ Filter AD9512 Secondary Clock Buffer / Divider SPI IOUD/BPSK / OSK SPI AD9854 DDS A SXLP-30+ Filter Driver I OUT SXLP-30+ Filter Driver Q OUT SXLP-30+ Filter Driver I OUT SXLP-30+ Filter Driver Q OUT SPI IOUD/BPSK / OSK AD9854 DDS B KEY MCX Cable Connector Logic Connection with FPGA Figure 2. Schematics of the Triple DDS Radar Controller. See Table 2 for list of components and references. Figure 3.
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Table 1. List of commercial modules incorporated in the Synthesizer-Transmitter Unit Tag Description Reference Manufacturer OCXO Oven-controlled crystal oscillator, 100 MHz Carrier with embedded FPGA&ARM processors Triple DDS Radar Controller Radio-frequency power amplifier Power low-pass filter N79A-optA Bliley Technologies Inc. 2545 W Grandview Blvd, Erie PA 16506 USA D-TACQ Solutions Ltd., International House Stanley Blvd, Blantyre G72 0BN Scotland UK id.