Compact high performance PLL synthesizers ideal for test and measurement applications

Pasternack has launched a new line of USB-controlled Phase Locked Loop (PLL) frequency synthesizers. In RF and microwave communications systems where signal integrity is of prime importance, PLL synthesizers 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 synthesizers can be useful in applications involving signal generators, benchtop test and measurement, electronic defence, and microwave radios. The company’s six new models of synthesizers cover 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 +10dBm to +19dBm 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 100MHz 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. A comprehensive user manual and VISA compliant software package can be downloaded. “Pasternack’s six new models of USB-controlled PLL frequency synthesizers offer a wealth of desirable features for designers and are ideal for test and measurement applications. Each model comes complete with accessory cables, downloadable user manual and command control software that’s ready to ship direct from stock with no MOQ,” said Tim Galla, active component product manager at Pasternack.