Digitally Controlled X-Tal Oscillator - Nokia RH-99 Service Manual

RH-99; RH-100; RH-105; RH-106
System module
The GMSK output signal form the PPA is fed into a front end module (FEM). A 2dB attenuator is added between
the PPA and the FEM.

Digitally Controlled X-tal Oscillator

The Digitally Controlled X-tal Oscillator (DCXO) provides the reference clock for the DRP2 and for the digital
baseband. The only external component is the crystal (and a series capacitor).
Issue 2 COMPANY CONFIDENTIAL Page 6 –15
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