Discrete RF Sampling Transceiver Reference Design

The RF sampling transceiver reference design helps as much as 5GHz bandwidth for essential communication and radar capabilities in area functions.

Area-grade discrete RF sampling transceivers are important for the profitable operation of satellite tv for pc and spacecraft methods on account of area’s harsh and distinctive situations. These units guarantee dependable and high-performance communication and management for important area missions by dealing with large instantaneous bandwidths, which help the fast transmission and reception of huge knowledge volumes. Designed to be radiation-tolerant, they stand up to varied types of ionizing radiation that would degrade or harm commonplace digital elements. The reference design from Texas Devices (TI) includes a discrete RF sampling transceiver that helps instantaneous sign bandwidths as much as 5GHz.

The reference design makes use of -SEP (Area Enhanced Plastic) grade, radiation-tolerant energetic units fitted to area functions. The receiver incorporates the ADC12DJ5200-SEP ADC (Analog-to-Digital Converter), whereas the transmitter makes use of the DAC39RF10-SEP DAC (Digital-to-Analog Converter). These knowledge converters help varied JESD modes for 1 or 2 output channels as much as the decrease X-band. The functions of the design embody communications payloads, radar imaging payloads, and command and knowledge dealing with (C&DH).

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The design features a TRF0208-SEP energetic balun within the receiver to transform single-ended enter to differential output and a TRF0108-SEP energetic balun within the transmitter to transform differential output to single-ended. The clocking system is housed on a daughter board that attaches to the principle knowledge converter board and options the LMK04832-SEP, which generates and distributes low-frequency clock and reference alerts to the synthesizer, knowledge converters, and FPGA. The LMX2694-SEP RF synthesizer delivers a 10GHz pattern clock to the DAC and a 5GHz pattern clock to the ADC. The facility system can also be on a daughter card that connects to the decrease a part of the board and manages energy distribution to all energetic units.

The design options as much as 5GHz of instantaneous bandwidth and operates as much as the X-band. It features a 10/5GHz clocking design and a broadband energetic knowledge converter interface. Moreover, it has a swappable clocking and energy design, permitting for versatile changes and upgrades.

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Satellite tv for pc payload functions in communications and radar demand large instantaneous bandwidth alerts to handle massive knowledge volumes. These functions profit from versatile, configurable options able to fast reconfiguration throughout totally different bands. For functions as much as roughly 8GHz, the RF sampling structure offers direct help. For frequencies by means of the Ka-band (27 – 40GHz), the RF sampling structure capabilities as an Intermediate Frequency (IF) stage, facilitating the up/down conversion to and from increased frequencies. These methods are usually utilized in Low Earth Orbit (LEO) and require radiation-tolerant energetic units to make sure reliability and efficiency in area situations.

TI has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) format, and extra. The corporate’s web site has further knowledge concerning the reference design. To learn extra about this reference design, click on right here.