TIDA-010131
Multichannel RF transceiver clocking reference design for RADARs and wireless 5G testers
TIDA-010131
Overview
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)
Design files & products
Design files
Download ready-to-use system files to speed your design process.
TIDUEK4.PDF (7688 K)
Reference design overview and verified performance test data
TIDRZ30.ZIP (2263 K)
Detailed schematic diagram for design layout and components
TIDRZ31.ZIP (314 K)
Complete listing of design components, reference designators, and manufacturers/part numbers
TIDRZ32.ZIP (882 K)
Detailed overview of design layout for component placement
TIDRZ34.ZIP (19873 K)
Files used for 3D models or 2D drawings of IC components
TIDCFB2.ZIP (2572 K)
Design file that contains information on physical board layer of design PCB
TIDRZ33.ZIP (8507 K)
PCB layer plot file used for generating PCB design layout
Products
Includes TI products in the design and potential alternatives.
Analog switches & muxes
SN74LVC2G53 — 5-V, 2:1 (SPDT), 1-channel general-purpose analog switch (available in the NanoFree™ package)
Data sheetAnalog switches & muxes
TMUX1574 — 5-V, 2:1 (SPDT), 4-channel analog switch with powered-off protection & 1.8-V input logic
Data sheetBuck converters (integrated switch)
TPS54318 — 2.95V to 6V Input, 3A Synchronous Step-Down SWIFT™ Converter
Data sheetClock buffers
LMK00304 — 3.1-GHz differential clock buffer/level translator with 4 configurable outputs
Data sheetClock jitter cleaners & synchronizers
LMK04828 — Ultra low-noise JESD204B compliant clock jitter cleaner with integrated 2370 to 2630-MHz VCO0.
Data sheetDigital temperature sensors
LM95233 — ±2°C Dual Remote and Local Temperature Sensor with TruTherm Technology and SMBus Interface
Data sheetLVDS, M-LVDS & PECL ICs
DS90LV028AQ-Q1 — Automotive LVDS dual differential line receiver
Data sheetLinear & low-dropout (LDO) regulators
TLV702 — 300-mA, high-PSRR, low-IQ, low-dropout voltage regulator with enable
Data sheetLinear & low-dropout (LDO) regulators
TPS7A47 — 1-A, 36-V, low-noise, high-PSRR, low-dropout voltage regulator with enable
Data sheetLinear & low-dropout (LDO) regulators
TPS7A8300 — 2-A, low-VIN, low-noise, ultra-low-dropout voltage regulator with power good with high-accuracy
Data sheetLinear & low-dropout (LDO) regulators
TPS7A90 — 500-mA, low-noise, high-PSRR, adjustable ultra-low-dropout voltage regulator with high-accuracy
Data sheetN-channel MOSFETs
CSD15571Q2 — 20-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 19.2 mOhm
Data sheetOscillators
LMK61E2 — 156.250-MHz, ±50 ppm, ultra-low jitter, integrated EEPROM, fully programmable oscillator
Data sheetRF PLLs & synthesizers
LMX2594 — 15-GHz wideband PLLatinum™ RF synthesizer with phase synchronization and JESD204B support
Data sheetRF-sampling transceivers
AFE7444 — Quad-channel RF-sampling AFE with 14-bit 9-GSPS DAC and 3-GSPS ADC without bypass mode
Data sheeteFuses & hot swap controllers
TPS25925 — 4.5-V to 5.5-V, 30mΩ, 2-5A eFuse
Data sheetStart development
Technical documentation
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| Type | Title | Date | |
|---|---|---|---|
| * | Design guide | Multichannel RF transceiver clocking reference design for RADARs and wireless 5G | Feb. 27, 2019 |
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