Texas Instruments LMX2820 | Demoboard TIDA-010230

Description

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

Typical applications

• AAS RF sampling (sub 6GHz)
• electronic warfare, laser guidance

More information

• Datasheet
• IC product information