Only For Training And Service Purposes - LG KP330 Service Manual

3.2.3 GSM/EDGE transmit signal path specifications
The RTR6285/6280 IC includes significant circuits for supporting GSM/EDGE polar transmit
signal paths, which include low-band path for GSM 850 and GSM 900, and high band path for
GSM 1800 and GSM 1900. The baseband I/Q signals from MSM are directly upconverted to
RF frequency using ZIF architecture. Specifications for each set of transmitter circuits are
given in the following sections.
Table 1.2-3 GSM 850/900 transmit signal path specifications
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Only for training and service purposes

KP330 Operational Description
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3. TECHNICAL BRIEF
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