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TIDA-010230

Multi-channel RF transceiver, low-noise clocking reference design for radar and EW applications

Design files

TIDA-010230

Design files

Overview

In modern radar and electronic warfare (EW) systems, active electronically-scanned array (AESA) antenna systems are often used with high speed multi-channel RF transceivers. These systems require very low noise clocking capable of precise channel-to-channel skew adjustment to achieve the optimal system performance like signal-to-noise ratio (SNR), spurious-free dynamic range (SFDR), IMD3 and effective number of bits (ENOB). This reference design demonstrates LMX2820- and LMK04832-based low-noise JESD204B-compliant clocks and provide to multiple AFE7950s up to X-band operation and synchronized them < 10 ps with improved system performance at 9-GSPS/3-GSPS DAC/ADC clocks.

Features
  • Multi-channel and scalable JESD204B-compliant clock
  • Low-phase noise clocking for RF sampling AFEs
  • Configurable phase synchronization to achieve low skew in multi-channel systems
  • Low noise and low ripple DC/DC achieves equivalent performance to LDO with improved efficiency
  • Demonstrates 8T8R synchronized RF sampling transceiver
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Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDA-010230
PDF | HTML
TIDUEZ6.PDF (1386 KB)

Reference design overview and verified performance test data

download Assembly drawing — TIDA-010230
TIDM972.PDF (1610 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — TIDA-010230
TIDM971.ZIP (456 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download CAD/CAE symbol — TIDA-010230
TIDM973.ZIP (12926 KB)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDA-010230
TIDCG31.ZIP (1785 KB)

Design file that contains information on physical board layer of design PCB

download Schematic — TIDA-010230
TIDM970.ZIP (2293 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

DC/DC converters

TPS62913 — 17-VIN, 3-A low-noise and low-ripple buck converter with integrated ferrite bead filter compensation

Data sheet: PDF | HTML
RF transceivers

AFE7950 — 4-transmit, 6-receive RF-sampling transceiver, 600-MHz to 12-GHz, max 1200-MHz IBW

Data sheet: PDF | HTML
Clock buffers

LMK1C1104 — 4-channel output LVCMOS 1.8-V buffer

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

TPS7A53 — 3-A, low-VIN (1.1 V) low-noise high-accuracy ultra-low-dropout (LDO) voltage regulator

Data sheet: PDF | HTML
RF PLLs & synthesizers

LMX2820 — 22.6-GHz wideband RF synthesizer with phase synchronization, JESD and <5-µs frequency calibration

Data sheet: PDF | HTML
Clock jitter cleaners

LMK04832 — Ultra-low-noise, 3.2-GHz, 15-output, JESD204B clock jitter cleaner with dual loop

Data sheet: PDF | HTML
RF transceivers

AFE7900 — 4-transmit, 6-receive RF-sampling transceiver, 5-MHz to 7.4-GHz, max 1200-MHz IBW

Data sheet: PDF | HTML

Start development

Hardware development

Evaluation board

AFE7950EVM — AFE7950 evaluation module for four-transmit, six-receive, X-band, RF-sampling AFE

In modern radar and electronic warfare (EW) systems, active electronically-scanned array (AESA) antenna systems are often used with high speed multi-channel RF transceivers. These systems require very low noise clocking capable of precise channel-to-channel skew adjustment to achieve the optimal (...)
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-010230 — Multi-channel RF transceiver, low-noise clocking reference design for radar and EW applications
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AFE7950EVM — AFE7950 evaluation module for four-transmit, six-receive, X-band, RF-sampling AFE

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TIDA-010230 — Multi-channel RF transceiver, low-noise clocking reference design for radar and EW applications
TI’s Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Top documentation Type Title Format options Date
* Design guide Multichannel RF Transceiver Low-Noise Clocking Ref. Des. for Radar and EW Applic PDF | HTML Dec 16, 2021
Application note LMX2820 RF Synthesizer Phase Noise Improvement With Alternative Topologies (Rev. A) PDF | HTML May 22, 2023
Application note Combining Two LMX2820 Synthesizer Outputs for Improved Phase Noise (Rev. A) PDF | HTML Mar 3, 2022

Related design resources

Reference designs

REFERENCE DESIGN
TIDA-010131 — Multichannel RF transceiver clocking reference design for RADARs and wireless 5G testers

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