MENU

Microwave PLL synthesiser eliminates frequency-doubling in broadband applications

Microwave PLL synthesiser eliminates frequency-doubling in broadband applications

New Products |
By eeNews Europe



The high bandwidth of the ADF41020 allows designers to potentially eliminate a frequency-doubler stage, which simplifies system architecture and reduces cost in applications including microwave point-to-point and multi-point radios, wireless infrastructure equipment, VSAT (very small aperture terminal) radios, semiconductor test equipment, radar applications and private mobile radios.

With an operating bandwidth up to 18 GHz, this is claimed to represent the highest frequency PLL available on the market today.

The ADF41020 PLL frequency synthesiser consists of a low-noise, digital phase-frequency detector, a precision charge pump, a programmable reference divider and high-frequency programmable feedback dividers. A complete synthesiser can be implemented if the PLL is used with an external loop filter and VCO (voltage controlled oscillator). The PLL can be used to drive external microwave VCOs via an active loop filter. The pin-out matches very closely the pinout of the ADF4106/7/8 family of integer-N PLLs, meaning only a minor layout change is required when updating a design to take advantage of the much wider bandwidth.

The ADF41020 PLL frequency synthesiser is software compatible with the existing ADF4106 , ADF4107 and ADF4108 PLLs and is well-suited for use with a variety of products including the ADP150 LDO (low dropout regulator) and the OP184 operational amplifier.
 
Availability and Pricing

Samples of the ADF41020 PLL frequency synthesizer packaged in 20-lead LFCSP are available now and priced $12.77 each in 1,000-unit quantities.

More information about the ADF41020 PLL frequency synthesizer at
www.analog.com/adf41020

If you enjoyed this article, you will like the following ones: don't miss them by subscribing to :    eeNews on Google News

Share:

Linked Articles
10s