Provided is a Global Positioning System (GPS) receive
sensitivity-improving apparatus and method in a Code Division Multiple
Access (CDMA) mobile terminal, which improves a GPS receive sensitivity
by preventing a reference frequency variation caused by a thermal
transient in the CDMA mobile terminal. The mobile terminal includes a
transmitter equipped with CDMA/PCS (Personal Communication System) Power
Amplifying Modules (PAMs) and a receiver equipped with a CDMA/PCS
reception module and a GPS reception module. The CDMA/PCS PAMs remain
turned on irrespective of the mobile terminal's operation modes. The
CDMA/PCS reception module is turned on in a CDMA/PCS mode, and the GPS
reception module is turned on in a GPS mode. The GPS receive
sensitivity-improving apparatus and method prevents a GPS receive
sensitivity from being affected by a module arrangement on the PCB of the
mobile terminal, thereby making it possible to manufacture smaller,
lighter and more compact mobile terminals.