LMX2595

The LMX2595 from Texas Instruments is a high-performance, wideband RF synthesizer capable of generating frequencies from 10 MHz to 20 GHz. It features an integrated doubler for frequencies above 15 GHz, providing a versatile solution for various RF applications.

Key electrical specifications include a minimum output frequency of 100 MHz and a maximum of 19000 MHz. The device boasts a normalized PLL phase noise of -236 dBc/Hz and 1/f noise of -129 dBc/Hz at a 10-kHz offset with a 1-GHz carrier. It operates with a current consumption of 340 mA and features an integrated VCO.

The LMX2595 supports advanced features such as flexible ramp generation, integer-boundary spurs (IBS) removal, multi-device synchronization, and phase adjustment. It includes JESD204B SYSREF with a 9-ps resolution programmable delay, making it suitable for high-speed data converter synchronization. The VCO calibration speed is less than 20 µs, and it operates from a single 3.3-V power supply.

Packaged in a VQFN 6 mm x 6 mm form factor, the LMX2595 is designed for applications requiring precise frequency synthesis and synchronization. Its phase noise performance of -110 dBc/Hz at 100-kHz offset with a 15-GHz carrier and 45-fs rms jitter at 7.5 GHz highlight its suitability for demanding RF designs.