User Guide

CC Technical Documentation System Module
RM-11
Issue 1 02/2004 ©2004 Nokia Corporation Confidential Page 27
Figure 22: BB_RF interface connections (2)
Figure 23: BB_RF interface connections (3)
Rip
#
Signal
Name
DAMPS,
GSM1900
Connected
from--- to
BB
I/O
Signal Properties
A/D--Levels---Freq./
Timing resolution
Description / Notes
RFCLK (not BUS -> no rip #) System Clock From RF To BB, original source VCTCXO, buffered (and
frequency shifted, WAM only) in RF IC (TACO)
RFCLK
VCTCXO -
>
RFIC
UPP In Ana 800mVpp
typ (FET
probed)
Bias DC
blocked at
UPP input
19.44 MHz System Clk from RF to BB,
RFClk
GND
RF UPP In Ana 0 System Clock slicer Ref GND, not
separated from pwb GND layer
SLOWAD(6:0) Slow Speed ADC Lines from RF block
5 PDMID
RF Power
detection
module
UEM In
Ana
0/2.7V dig 0/VR2 Power detection module identification to
slow ADC (ch 5, previous VCTCXO Temp)
signal to UEM.
6 PATEMP
RF Power
detection
module
UEM In
Ana
0.1-2.7V - Tx PA Temperature signal to UEM, NTC in
Power Detection Module
RFCONV(9:0) RF- BB differential Analog Signals: Tx I&Q, Rx I&Q and reference voltage
0
RXIP
1
RXIN
Differential positive/negative in-phase Rx
Signal
2
RXQP
3
RXQN
RFIC UEM In
Ana
1.4Vpp
max. diff.
0.5Vpp typ
bias
1.30V
Diff. Positive/negative quadrature phase Rx
Signal
4
TXIP
5
TXIN
Differential positive/negative in-phase Tx
Signal
6
TXQP
7
TXQN
UEM RFIC Out
Ana
2.2Vpp
max. diff.
0.6VppTyp
Bias
1.30V
Differential positive/negative quadrature
phase Tx Signal
9
VREFRFO1
UEM RFIC Out
Vref
1.35 V RF IC Reference voltage from UEM
19.2 MHz
Rip
#
Signal
Name
DAMPS,
GSM1900
Connected
from--- to
BB
I/O
Signal Properties
A/D--Levels---Freq./
Timing resolution
Description / Notes
RFAUXCONV(2:0) RF_BB Analog Control Signals to/from UEM
1
TXPWRDET
TXP Det. UEM In Ana
0.1-2.4 V 50 us Tx PWR Detector Signal to UEM
2
AFC
UEM VCTCXO Out Ana
0.1-2.4 V Automatic Frequency Control for VCTCXO