Industry’s lowest power wideband RF synthesizer

19-06-2015 | Texas Instruments | Semiconductors

This post is sponsored by Texas Instruments. Introduced as the industry’s lowest power wideband radio frequency (RF) synthesizer, the LMX2571 has been unveiled by Texas Instruments (TI). Operating up to 1.34 GHz, the LMX2571 integrates an ultra-low-noise PLLatinum fractional-N phase-locked loop (PLL) with a multicore voltage-controlled oscillator (VCO), enabling low phase noise and spurs at only 39mA (128mW). The LMX2571 enhances radio sensitivity and dynamic range for applications such as low-power wireless communication, handheld oscilloscopes and signal analyzers. An integrated frequency modulator enables the user to directly modulate the carrier to produce analog frequency modulation (FM) or frequency-shift-keying (FSK), benefiting portable wireless applications such as land mobile radios, software-defined radios and wireless microphones. The LMX2571 is the first RF synthesizer in the industry with an integrated feature to remove integer boundary spurs (IBS), allowing designers to eliminate spurious emissions and maximize use of radio channels in their wireless systems. Engineers can quickly and easily evaluate the performance of the LMX2571 RF synthesizer with the LMX2571EVM evaluation module, says the company.

By Craig Dyball