User Guide

CCS Technical Documentation Schematics / Layouts 8280 RH-10
Issue 1 09/2002 Confidential Nokia Corporation Page A-9
Circuit Diagram of TX
VCO_BAND
2.7 volt
POWER TO CAPS THEN TO PIN
Truth Table for Split-Band Filter PATH:
0 volt
A7
RFOUT2
VCONT1 SWITCH IN STATE
Same length
DRV CNTL
0 volt
TX_VHF_LO_OUT
2.7 volt
Same length
DRV OUT
WING COMPONENTS
VCONT2
B6
STATE
2.7 volt
low (shorted to ground)
(TX)
RFI2
ROBIN
RFOUT1
(TX)
0 volt
ROBIN
I9
Cell band
PCS band
RFI1
tri-stated (open circuit)
F8
I1
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