DESCRIPTION

The MAS9270 is an integrated circuit well suited to build VCTCXO for mobile communication. Temperature calibration is achieved in three calibration temperatures only. The trimming is done through a serial bus and the calibration information is stored in an internal PROM. This means no rework for trimming is needed. To build a VCTCXO additionally only crystal is required. The compensation method is fully analog, working continuously without generating any steps or other interference.

FEATURES

• Very small size

• Minor current draw

• Wide operating temperature range

• Phase noise <-120 dBc/Hz at 100Hz offset

• Programmable VC-sensitivity

• Minimum Operating Temperature –40 °C for MAS9270Cxx3

APPLICATIONS

• VCTCXO for mobile phones

• VCTCXO for other telecommunications systems