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Radar imaging payload

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Block diagram

Radar imaging payload

Block diagram

Overview

Our space-qualified integrated circuits and reference designs help you create next-generation radar imaging payloads to monitor surface conditions from space with maximum performance.

Design requirements

Modern radar imaging payloads often require:

  • Synchronization of multiple high-speed data converters.
  • Direct RF sampling to achieve high bandwidth and dynamic range.
  • High levels of integration to reduce size, weight and power.

Block diagram

Find products and reference designs for your system.

Radar imaging payload

Point of load power supply Point of load power supply DC-DC converter DC-DC converter LDO LDO Load Switch Load Switch Digital processing Digital processing DSP DSP SRAM SRAM DDR DDR FPGA FPGA DDR power DDR power Payload interface Payload interface CAN CAN SERDES SERDES RS232/RS422/RS485 RS232/RS422/RS485 LVDS/ECL LVDS/ECL Ethernet Ethernet Transmitter array Transmitter array DAC DAC Filter Filter Amp Amp Mixer Mixer Driver Driver Temp sense Temp sense PA PA E 45° E45° Solar panels Solar panels Bus power supply Bus power supply PWM controller PWMcontroller Comparator Comparator Current sense Current sense Reference Reference Calibration, monitor and control Calibration, monitor and control MCU MCU Load switch Load switch Current sense Current sense DAC DAC Clock buffer Clock buffer ADC ADC Logic Logic Comp Comp Ref Ref Temp sense Temp sense Clock and synthesizer block Clock and synthesizer block Clock synch & jitter cleaner Clock synch & jitter cleaner Amp Amp PLL synth PLL synth Clock buffer Clock buffer Logic Logic Receiver array Receiver array ADC ADC Filter Filter Amp Amp Mixer Mixer Temp sense Temp sense LNA LNA Atten. Atten.

Payload interface

close

Wired signal interface is for communication with other system blocks within the satellite. The wired interface include Ethernet, RS-485, CAN, which are typically used for control, monitoring and data transfer.

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Interface (6)
RS-485 & RS-422 transceivers
  • THVD9491-SEP—Radiation-tolerant 3V to 5.5V RS-485 transceiver with flexible I/O supply and IEC ESD
    Data sheet: PDF | HTML
  • SN65C1168E-SEP—Radiation hardened RS-422 dual differential drivers and receivers in space Enhanced Plastic
    Data sheet: PDF | HTML
CAN transceivers
  • SN55HVD233-SEP—Radiation hardened 3.3V CAN transceiver in space enhanced plastic package with standby mode
    Data sheet: PDF | HTML
LVDS, M-LVDS & PECL ICs
Other interfaces
  • TLK2711-SP—Radiation tolerant 1.6 to 2.5-Gbps Class V transceiver
    Data sheet: PDF | HTML
    Hardware development
    Evaluation board
    • DIGI-ISO-EVM — Universal digital isolator evaluation module
    • DP83561EVM — Space qualified (QMLV-RHA compliant) 10/100/1000 Ethernet PHY evaluation module
    • TLK2711EVM-CVAL — TLK2711EVM-CVAL SerDes Evaluation Module Board

    Technical documentation

    View all 9
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    Type Title Date
    Application note Failure Containment in Spacecraft Point-of-Load Power Supplies 30 Apr 2020
    E-book Radiation Handbook for Electronics (Rev. A) 28 Oct 2020
    Application note TI Space Rated Power Solution for Microsemi® RTG4™ FPGA (Rev. B) PDF | HTML 19 Jan 2023
    Technical article 4 trends in space-grade power management PDF | HTML 16 Aug 2023
    Application note Measuring Die Temperature with Remote Diode Sensing in Space 13 Dec 2018
    Selection guide TI Space Products (Rev. J) 10 Jun 2024
    Technical article Why component integration carries weight for space-based PLL synthesizers PDF | HTML 06 Sep 2023
    Application note Rad-hardened FDA as Clock Buffer in Communication and Radar Payloads (Rev. A) 05 Aug 2019
    Application note Use of an LDO as a Load Switch for Space Applications 01 Aug 2018

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