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Frequency sources for test and measurement

16th January 2017

Posted By Paul Boughton


Pasternack, a provider of RF, microwave and millimeter wave products, has launched a new line of USB-controlled Phase Locked Loop (PLL) frequency synthesisers.

In RF & Microwave communications systems where signal integrity is of prime importance, PLL synthesisers offer high levels of frequency stability and accuracy with exceptional phase noise characteristics that allows components in the signal chain to perform at their optimum levels.

These new PLL synthesisers can be useful in applications involving signal generators, bench-top test and measurement, electronic warfare, and microwave radios.

Pasternack’s six new models of PLL frequency synthesisers cover a broad range of frequency bands from 25MHz to 27GHz.

The compact and rugged SMA-connectorised designs support a USB 2.0 interface with a PC computer that supplies DC power and GUI command control.  Models offer high output power levels that range from +10 dBm to +19 dBm typical, and output attenuation is adjustable up to 50dB in 1dB steps. Phase locked speed is 1msec typical and phase noise is as low as -108dBc/Hz at 100 MHz offset.

Additional features include a 50 MHz 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 functional LED indicators that confirm a USB connection, phase locking and unlocking, and RF power disable.

All models are RoHS and Reach compliant and are classified as EAR99.









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