LG KE600 Service Manual - Page 61
RF circuit, 19. General Description
View all LG KE600 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 61 highlights
3. TECHNICAL BRIEF RF circuit RF Block Diagram 3.19. General Description The RF transceiver (PMB 6272 SMARTi-PM) is an integrated single chip, quad-band transceiver for GSM850/GSM900/GSM1800/GSM1900 designed for voice and data transfer applications. The transceiver provides an analog I/Q baseband interface and consists of a direct conversion receiver and a quad-band polar transmitter for GSM and EDGE with integrated PGA functionality. Further on a completely integrated SD-synthesizer with HSCSD and GPRS/EDGE capability, a digitally controlled reference oscillator with three outputs, a fully integrated quad-band RF oscillator and a three wire bus interface with all necessary control circuits complete the transceiver. - 62 -
3. TECHNICAL BRIEF
- 62 -
RF circuit
3.19. General Description
The RF transceiver (PMB 6272 SMARTi-PM) is an integrated single chip, quad-band transceiver for
GSM850/GSM900/GSM1800/GSM1900 designed for voice and data transfer applications. The
transceiver provides an analog I/Q baseband interface and consists of a direct conversion receiver and
a quad-band polar transmitter for GSM and EDGE with integrated PGA functionality. Further on a
completely integrated SD-synthesizer with HSCSD and GPRS/EDGE capability, a digitally controlled
reference oscillator with three outputs, a fully integrated quad-band RF oscillator and a three wire bus
interface with all necessary control circuits complete the transceiver.
RF Block Diagram