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Communications payload

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Block diagram

Communications payload

Block diagram

Overview

Our integrated circuits and reference designs help you create communications payload systems complete with schematics, test data and design files.

Design requirements

Modern communications payload designs require:

  • Wide bandwidth ADCs and DACs to provide the highest data throughput systems.
  • Ultra-low jitter clocking solutions to maximize the performance of your data converters.
  • Highly integrated, point-of-load (POL) solutions for the space market that reduce overall board size required for even the highest power processing boards.

Block diagram

Find products and reference designs for your system.

Communications payload

Filter Filter Filter Filter Filter Filter Mixer Mixer Filter Filter Filter Filter Filter Filter Mixer Mixer Filter Filter Receiver signal Receiver signal FPGA FPGA Transmitter signal Transmitter signal Transmitter signal Transmitter signal Filter Filter Filter Filter Filter Filter Mixer Mixer Mixer Mixer Oscillator Oscillator Interface Interface Control & monitoring Control & monitoring Power management Power management Beam former Beam former Beam former Beam former Power detector Power detector LNA LNA PA bias PA bias PA bias PA bias PA PA PWM controller PWM controller PWM controller PWM controller Gate driver Gate driver Gate driver Gate driver DC/DC converter DC/DC converter DC/DC converter DC/DC converter Load switch Load switch Load switch Load switch Low-noise LDO Low-noise LDO Low-noise LDO Low-noise LDO Negative LDO Negative LDO Negative LDO Negative LDO Temp sensor Temp sensor Temp sensor Temp sensor Current sensor Current sensor Current sensor Current sensor Reference Reference Vref Vref Logic Logic Logic Logic Mux Mux Mux Mux Comparator Comparator Comparator Comparator Precision ADC Precision ADC ADC ADC Voltage translation Voltage translation Voltage translation Voltage translation MCU MCU MCU or FPGA MCU or FPGA Precision DAC Precision DAC DAC DAC Memory Memory DDR termination DDR termination PoL DAC PoL DAC PoL DAC PoL DAC FPGA power FPGA power PoL PoL Sequencing Sequencing RF DAC RF DAC DAC DAC FDA FDA FDA FDA Amplifier Amplifier Amp Amp Receiver FDA ReceiverFDA FDA FDA RF ADC RF ADC ADC ADC PoL ADC PoL ADC PoL ADC PoL ADC Ethernet Ethernet Ethernet Ethernet CAN CAN CAN CAN RS-485 RS-485 RS-485 RS-485 Isolation Isolation Isolation Isolation LVDS LVDS LVDS LVDS Doubler Doubler RF clocking RF clocking LO LO Local oscillator Local oscillator Clock synthesizer Clock synthesizer Clock synthesizer Clock synthesizer Buffer/jitter cleaner Buffer/jitter cleaner Buffer/jitter cleaner Buffer/jitter cleaner

RS-485

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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 (3)
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
  • DS16F95QML-SP—EIA-485/EIA-422A Differential Bus Transceivers
    Data sheet: PDF | HTML
  • SN65C1168E-SEP—Radiation hardened RS-422 dual differential drivers and receivers in space Enhanced Plastic
    Data sheet: PDF | HTML

    Technical documentation

    View all 15
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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
    * Data sheet CDCM7005-SP 3.3-V High Performance Rad-Tolerant Class V, Clock Synchronizer and Jitter Cleaner datasheet (Rev. G) PDF | HTML 27 Sep 2024
    * Data sheet Rad-Tolerant Class V, Wideband Operational Amplifier datasheet (Rev. A) 27 Apr 2024
    Technical article Improving IC reliability for harsh design environments PDF | HTML 26 Jun 2023
    * Data sheet LMH6702QML-SP 1.7GHz, Ultra-Low-Distortion, Wideband Op Amp datasheet (Rev. F) PDF | HTML 23 Aug 2024
    Application note TI Space Rated Power Solution for Microsemi® RTG4™ FPGA (Rev. B) PDF | HTML 19 Jan 2023
    Technical article When failure isn’t an option: power up your next satellite with integrated functio PDF | HTML 18 Sep 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
    * Data sheet THS4513-SP Rad-Tolerant Class V, Wideband, Fully Differential Amplifier datasheet (Rev. A) 11 Apr 2024
    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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