User Guide

Nokia Customer Care Troubleshooting - Baseband
6015/6015i/6016i/6019i (RH-55), 6012 (RM-20)
Issue 1 - Revision 002 09/2004 ©2004 Nokia Corporation Company Confidential Page 13
Clock Distribution
RFClk (19.2 MHz Analog)
The baseband’s main clock signal is generated from the VCTCXO (G501). This 19.2 MHz
clock signal is generated at the RF and fed to the UPP’s RFCLK pin and the GPS BB ASIC.
Figure 4: 19.2 MHz analog
RFConvClk (19.2 MHz digital)
The UPP distributes the 19.2 MHz Clk to the internal processors, DSP, and MCU, where
SW multiplies this clock by seven for the DSP and by two for the MCU.