Multichannel RF transceiver clocking reference design for RADARs and wireless 5G testers
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 endDigital functions synchronization across multiple RF AFE transceiversLow phase noise clock generation for 14-bit: RF sampling AFEsFine phase delay adjustment in steps of approximately 500 fs to achieve phase synchronization across multiple devicesSupports high-speed data converters and capture cards (AFE7444EVM: TSW14J56EVM: TSW14J57EVM)
Applications
- Electronic warfare
- Global positioning system receiver
- Radar
- Wireless communications test
Product Categories
- RF & microwave