Test & Measurement

PLL frequency synthesisers cover 25MHz-27GHz bandwidths

25th October 2017
Mick Elliott

A line of USB-controlled, phase locked loop (PLL) frequency synthesisers has been released by Fairview Microwave. In RF and Microwave communications systems where signal integrity is priority, PLL synthesisers offer superior frequency stability and accuracy with exceptional phase noise characteristics that allow components in the signal chain to perform at their optimal levels.

These new PLL synthesisers are ideal for applications that involve electronic warfare, signal generators, benchtop test and measurement and microwave radios.

Fairview’s six new PLL frequency synthesiser models are compact, rugged, SMA-connectorized designs that support USB 2.0 interface with a PC computer supplying DC power and GUI command control.

They cover a broad range of frequency bands from 25MHz to 27GHz.

These models deliver output attenuation that is adjustable up to 50dB in 1dB steps and high output power levels ranging from +10dBm to +19dBm typical.

Phase noise is as low as -108dBc/Hz at 100MHz offset and phase locked speed is 1msec typical.

These synthesizer models also feature a 50MHz internal frequency source and optional external reference with supplied cable. Frequency resolution can be adjusted using either integer (default) or fractional modes with resolution to a step size down to 1MHz.

Modules support RF power disable, phase locking and unlocking, and functional LED indicators that confirm a USB connection.

These PLL frequency synthesisers are RoHS and Reach compliant and are classified as EAR99. A comprehensive user manual and VISA compliant software package can be downloaded from the Fairview website. 

“Our six new USB-controlled PLL frequency synthesizers provide designers with an array of features ideal for test and measurement applications.  Each model is ready to ship, complete with downloadable user manual, accessory cables and command control software,” said Tim Galla, Product Manager at Fairview.

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