The LMX2582 is a high performance wideband synthesizer (PLL with integrated VCO). The output frequency range is from 20 MHz to 5.5 GHz. The VCO core covers an octave from 3.55 to 7.1 GHz. The output channel divider covers the frequency range from 20 MHz to the low bound of the VCO core.

The input signal frequency has a wide range from 5 to 1400 MHz. Following the input, there is an programmable OSCin doubler, a pre-R divider (previous to multiplier), a multiplier, and then a post-R divider (after multiplier) for flexible frequency planning between the input (OSCin) and the phase detector.

The phase detector (PFD) can take frequencies from 5 to 200 MHz, but also has extended modes down to 0.25 MHz and up to 400 MHz. The phase-lock loop (PLL) contains a Sigma-Delta modulator (1st to 4th order) for fractional N-divider values. The fractional denominator is programmable to 32-bit long, allowing a very fine resolution of frequency step. There is a phase adjust feature that allows shifting of the output phase in relation to the input (OSCin) by a fraction of the size of the fractional denominator.

The output power is programmable and can be designed for high power at a specific frequency by the pullup component at the output pin.

The digital logic is a standard 4-wire SPI or uWire interface and is 1.8-V and 3.3-V compatible.