4 GH TO 18 GH Divide-by-2 Prescaler

The ADF5000 prescaler is a low noise, low power, fixed RF divider block that can be used to divide down frequencies as high as 18 GHz to a lower frequency suitable for input to a PLL IC, such as the ADF4156 or the ADF4106. The ADF5000 provides a divide-by-2 function. The ADF5000 operates from a 3.3 V supply and has differential 100 Ω RF outputs to allow direct interface to the differential RF inputs of PLLs such as the ADF4156 and ADF4106.

Applications

* PLL frequency range extender

* Point-to-point radios

* VSAT radios

* Communications test equipment

* Divide-by-2 prescaler

* High frequency operation: 4 GHz to 18 GHz

* Integrated RF decoupling capacitors

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Active mode: 30 mA

* Power-down mode: 17 mA

* Low phase noise: -147 dBc/Hz

* Single dc supply: 3.3 V compatible with ADF4xxx PLLs

* Temperature range: -40°C to +105°C

* Small package: 3 mm × 3 mm LFCSP