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Command & data handling (C&DH)

Products and reference designs
Block diagram

Command & data handling (C&DH)

Block diagram

Overview

Our integrated circuits and reference designs help you create command and data handling (C&DH) systems complete with schematics, test data and design files.

Design requirements

    Modern C&DH designs require:

  • Highly integrated, point-of-load (POL) solutions for the space market that reduce overall board size required for even the highest power processing boards.
  • Rad-hard POL converter and low dropout (LDO) linear regulator components that drive optimal efficiency, size and power.
  • Integrated, high efficiency solutions for powering memory storage banks.

Block diagram

Find products and reference designs for your system.

Command & data handling (C&DH)

Serial Interface Serial Interface To Propulsion and Attitude Control To Propulsion and Attitude Control Antenna Array AntennaArray To Payload To Payload Solar Panels Solar Panels Bus Power Supply Bus Power Supply PWM Controller PWMController Comparator Comparator Current Sense CurrentSense Reference Reference Point of Load Power Supply Point of Load Power Supply DC-DC Converter DC-DC Converter LDO LDO Load Switch LoadSwitch Digital Processing Digital Processing DSP DSP MCU MCU DDR Termination Regulator DDR Termination Regulator FPGA FPGA DDR Memory DDR Memory Payload Interface Payload Interface CAN CAN SERDES SERDES RS232/RS422/RS485 RS232/RS422/RS485 LVDS/ECL LVDS/ECL Ethernet Ethernet Mass Memory Unit Mass Memory Unit SERDES SERDES NAND NAND SRAM SRAM Telemetry Uplink Telemetry Uplink Filter Filter ADC ADC Filter Filter Mixer Mixer Temp. Sense Temp. Sense Amp Amp LNA LNA Telemetry Downlink Telemetry Downlink Filter Filter AMP AMP DAC DAC Driver Driver Filter Filter Mixer Mixer Temp. Sense Temp.Sense PA PA Clock and Synthesizer Block Clock and Synthesizer Block Clock Sync & Jitter Cleaner Clock Sync & Jitter Cleaner Clock Buf ClockBuf PLL Synth PLLSynth AMP AMP Logic Logic Calibration, Monitor and Control Calibration, Monitor and Control REF REF DAC DAC ADC ADC Clock Buf ClockBuf Temp. Sense Temp.Sense COMP COMP Logic Logic MCU MCU Current Sense CurrentSense AMP AMP

Calibration/monitor & control

close

An onboard monitoring reports the health or status of the system. The block also compensates or controls the system based on the system environmental parameters like temperature etc. The block also has calibration functions that allows to achieve optimum signal chain performance.

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Amplifiers (7)
Comparators
General-purpose op amps
  • OPA4H199-SEP—Space-enhanced-product, quad, 40-V 4.5-MHz rail-to-rail input and output operational amplifier
    Data sheet: PDF | HTML
  • LM124AQML-SP—Space-grade, quad, 32-V, 1-MHz, 3-mV offset voltage op amp with -55°C to 125°C operation
    Data sheet: PDF | HTML
Precision op amps (Vos<1mV)
  • LMP7704-SP—Radiation-hardness-assured (RHA), precision low-input-bias wide-supply-range amplifier with RRIO
    Data sheet: PDF | HTML
Data converters (4)
Precision DACs (≤10 MSPS)
  • DAC121S101-SEP—Radiation-tolerant, single-channel, low-power (0.57mW) 12-bit 5.5V digital-to-analog converter
    Data sheet: PDF | HTML
  • DAC121S101QML-SP—12-Bit Micro Power Digital-to-Analog Converter with Rail-to-Rail Output
    Data sheet: PDF | HTML
Precision ADCs
  • ADC128S102QML-SP—Radiation-hardened, eight-channel, 50-kSPS to 1-MSPS, 12-bit analog-to-digital converter (ADC)
    Data sheet: PDF | HTML
  • ADS1278-SP—Radiation Hardened 24-Bit 8-Ch Simultaneous-Sampling Delta-Sigma ADC
    Data sheet: PDF | HTML
Logic & voltage translation (2)
Voltage translating gates
  • SN54SC3T97-SEP—Radiation-tolerant, three-channel configurable multiple-function gate
    Data sheet: PDF | HTML
AND gates
  • SN54AHCT08-SP—Space, 4-ch 2-input 4.5-V to 5.5-V AND gate with TTL-compatible inputs
    Data sheet: PDF | HTML
Sensors (1)
Digital temperature sensors
  • TMP461-SP—Radiation-hardness-assured (RHA), high-accuracy remote and local temperature sensor
    Data sheet: PDF | HTML
Power management (1)
Shunt voltage references
  • LM4050QML-SP—Radiation-hardened QMLV, 2.5-V or 5-V shunt voltage reference
    Data sheet: PDF | HTML
Microcontrollers (MCUs) & processors (1)
MSP430 microcontrollers
  • TIDA-010197—Versatile satellite health monitoring and control platform reference design with < 1% accuracy
    Design guide: PDF | HTML Schematic: PDF
  • TIDA-070004—Space-grade reference design using integrated digital-output temperature sensor
    Design guide: PDF Schematic: PDF
Hardware development
Evaluation board
  • INA901EVM-CVAL — INA901-SP Radiation Hardness Assured (RHA) Current-Shunt Monitor Evaluation Module
  • ADS1282EVM-CVAL — ADS1282-SP radiation-tolerant evaluation module
Software development
GUI for evaluation module (EVM)
  • ADCPRO — Analog-to-digital converter pro (ADCPro™) evaluation software

Technical documentation

View all 7
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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
Application note Measuring Die Temperature with Remote Diode Sensing in Space 13 Dec 2018
Selection guide TI Space Products (Rev. J) 10 Jun 2024
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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