Datasheet ADF5000 (Analog Devices)

4 GHz to 18 GHz Divide-by-2 Prescaler Data Sheet ADF5000 FEATURES FUNCTIONAL BLOCK DIAGRAM Divide-by-2 prescaler CE High frequency operation: 4 GHz to 18 GHz ADF5000 Integrated RF decoupling capacitors BIAS Low power consumption VDDx Active mode: 30 mA 100Ω 100Ω Power-down mode: 17 mA 1pF 3pF Low phase noise: −147 dBc/Hz DIVIDE RFOUT RFIN BY 2 Single dc supply: 3.3 V compatible with ADF4xxx P LLs RFOUT 1pF Temperature range: −40°C to +105°C 50Ω Small package: 3 mm × 3 mm LFCSP
001
APPLICATIONS GND
09129- Figure 1.
PLL frequency range extender Point-to-point radios VSAT radios Communications test equipment GENERAL DESCRIPTION
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.
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Document Outline Features Applications General Description Functional Block Diagram Table of Contents Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Evaluation Board PCB PCB Material Stack-Up Bill of Materials Application Circuit Outline Dimensions Ordering Guide