The oscillator can be represented by the equivalent circuit shown below.
The crystal unit is connected to XIN, and the other terminal is connected to the LS and RP network.
A varicap is added with cathode connected to XR, and anode connected to XC.
Key Features
characteristics optimized for VCXO operation, and includes a varicap connection pin. The CF5072BA can be configured with few external components, making them ideal as miniature VCXO modules.
Full PDF Text Transcription for CF5072BA (Reference)
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CF5072BA. For precise diagrams, and layout, please refer to the original PDF.
CF5072BA 155MHz VCXO Module IC www.datasheet4u.com OVERVIEW The CF5072BA is 155MHz VCXO IC. It incorporates a 155.52MHz fundamental frequency oscillator circuit and a dif...
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porates a 155.52MHz fundamental frequency oscillator circuit and a differential LVPECL output circuit on a single chip. The oscillator circuit features characteristics optimized for VCXO operation, and includes a varicap connection pin. The CF5072BA can be configured with few external components, making them ideal as miniature VCXO modules. FEATURES I I I I 3.0 to 3.
CF5072BA Datasheet
