Multichannel RF transceiver clocking reference design for RADARs and wireless 5G testers
TIDA-010131
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Key Document

Description

Analog front end for high-speed end equipments like phased-array radars, wireless communication testers, and electronic warfare require synchronized, multipletransceiver signal chains. Each transceiver signal chain includes high-speed, analog-to-digital converters (ADCs), digital-to-analog converters (DACs), and a clock subsystem. The clock subsystem provides low noise sampling clocks with precise delay adjustment to achieve lowest channel-to-channel skew and optimum system performance like signal-to-noise ratio (SNR), spurious free dynamic range (SFDR), IMD3, effective number of bits (ENOB), and so forth. This reference design demonstrates multichannel JESD204B clocks generation and system performance with AFE7444 EVMs. Channel-to-channel skew better than 10 ps achieved with 6 GSPS/3 GSPS DAC/ADC clocks up to 2.6-GHz radio frequencies and system performance like SNR and SFDR are comparable to the AFE7444 data sheet specifications.

Features
  • JESD204B complaint clock solution for 8T8R RF sampling analog front end
  • Digital functions synchronization across multiple RF AFE transceivers
  • Low phase noise clock generation for 14-bit, RF sampling AFEs
  • Fine phase delay adjustment in steps of approximately 500 fs to achieve phase synchronization across multiple devices
  • Supports high-speed data converters and capture cards (AFE7444EVM, TSW14J56EVM, TSW14J57EVM)

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TI Devices (17)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
AFE7444  Quad-channel RF-sampling AFE with 14-bit 9-GSPS DAC and 3-GSPS ADC without bypass mode  RF transceivers  Sample & Buy View Design Kits & Evaluation Modules
CSD15571Q2  20V, N ch NexFET MOSFET™, single SON2x2, 19.2mOhm  MOSFETs  Sample & Buy Not Available
DS90LV028AQ-Q1  Automotive LVDS Dual Differential Line Receiver  Interface  Sample & Buy View Design Kits & Evaluation Modules
LM95233  ±2°C Dual Remote and Local Temperature Sensor with TruTherm Technology and SMBus Interface  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
LMK00304  3.1-GHz Differential Clock Buffer/Level Translator  Clock buffers  Sample & Buy View Design Kits & Evaluation Modules
LMK04828  Ultra-low jitter synthesizer & jitter cleaner  Clock jitter cleaners  Sample & Buy View Design Kits & Evaluation Modules
LMK61E2  Ultra-Low Jitter Fully Programmable Oscillator, Integrated EEPROM, +/-50ppm  Clock & timing  Sample & Buy View Design Kits & Evaluation Modules
LMX2594  15 GHz Wideband PLLatinum™ RF Synthesizer with Phase Synchronization and JESD204B support  Clock & timing  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC1G08  Single 2-Input Positive-AND Gate  Gate  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC2G53  Single Pole, Double-Throw (SPDT) Analog Switch or 2:1 Analog Multiplexer/Demultiplexer  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules
TLV702  300mA Low-Iq Low-Dropout (LDO) Regulator for Portables  Power management  Sample & Buy View Design Kits & Evaluation Modules
TMUX1574  Low-capacitance, 2:1 (SPDT) 4-channel, powered-off protection switch with 1.8-V logic  Switches & multiplexers  Sample & Buy View Design Kits & Evaluation Modules
TPS25925  5V, 5A, 30mΩ eFuse with Adjustable +/-15% Accurate Current Limit  Power switches  Sample & Buy View Design Kits & Evaluation Modules
TPS54318  2.95V to 6V Input, 3A Synchronous Step-Down SWIFT™ Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS7A47  36-V, 1-A, 4.17-μVRMS, RF low-dropout (LDO) voltage regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A8300  2A, Low-Dropout Voltage Regulator for High-Speed Communication Systems  Power management  Sample & Buy View Design Kits & Evaluation Modules
TPS7A90  500mA High-Accuracy Low-Noise Low-Dropout (LDO) Voltage Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD15571Q2 WSON (DQK)| 6 Download
DS90LV028AQ-Q1 Download Download
LM95233 Download Download
LMK00304 Download Download
LMK04828 Download Download
LMK61E2 Download Download
LMX2594 Download Download
SN74LVC1G08 Download Download
Download Download
Download
Download Download
Download -
Download Download
Download Download
SN74LVC2G53 Download Download
Download Download
Download -
TLV702 Download Download
Download Download
TMUX1574 Download
Download
TPS25925 Download
TPS54318 Download Download
TPS7A47 Download Download
TPS7A8300 Download
Download -
TPS7A90 Download Download

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Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 7688 27 Feb 2019
Design files (6)
Title Type Size (KB) Date
ZIP 2572 27 Feb 2019
ZIP 19873 27 Feb 2019
ZIP 8507 27 Feb 2019
ZIP 882 27 Feb 2019
ZIP 314 27 Feb 2019
ZIP 2263 27 Feb 2019
Related Tools & Software

Reference Designs  ( 4 )

Design Kits & Evaluation Modules  ( 3 )

Software (1)



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