DESCRIPTION
The MAS9278 is an integrated circuit well suited to build VCXO for mobile communication. The crystal offset trimming is done through a serial bus and the calibration information is stored in an internal PROM. To build a VCXO only one additional component, a crystal, is needed.

FEATURES
• Very small size
• Minor current draw
• Wide operating temperature range
• Phase noise <-130 dBc/Hz at 1 kHz offset
• Programmable Vc sensitivity

APPLICATIONS
• VCXO for mobile phones
• VCXO for other telecommunications systems