USB-controlled PLL synthesizers tackle 25MHz to 27GHz bands

January 10, 2017 // By Julien Happich
Pasternack's new line of USB-controlled Phase Locked Loop (PLL) frequency synthesizers include six new models covering a broad range of frequency bands from 25MHz to 27GHz.

The compact and rugged SMA-connectorized 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 50 dB in 1 dB steps. Phase locked speed is 1 msec typical and phase noise is as low as -108 dBc/Hz at 100 MHz offset.

Additional features include 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 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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