User Guide

RAE-6/RA-4
Nokia Customer Care 7 - RF Description and Troubleshooting
12 COMPANY CONFIDENTIAL Issue 1 12/04
Copyright © 2004 Nokia. All Rights Reserved.
RF block diagram
VCO
IN
MODPLL
RX-MIX
SYNT_MIX
2
1
3
5
4
OUTAFC
VCTCXO
IN
OUT
f/2
f
INOUT
INOUT
AGC
INOUT
AGC
INOUT
INOUT
AGC
INOUT
AGC
DtoS
12 dB
42 dB / 6dB step
INOUT IN
OUT
PLL
REF LE1 CLK DATA
IN
OUT2
OUT1
IN
OUT2
OUT1
IN OUT
IN
OUT
f/2
f
IN
OUT2
OUT1
RF
LO
IF
RF
LO
IF
IN OUT
AGC
IN
OUT
f/2
f
RF
LO
IF
RF
LO
IF
IN OUT
AGC
IN
OUT
f/4
f
IN
OUT
f/4
f
RF
LO
IF
RF
LO
IF
INOUT
INOUT
AGC
INOUT
AGC
RF
LO
IF
RF
LO
IF
RF
LO
IF
RF
LO
IF
IN OUT
AGC
IN OUT
AGC
IN
OUT
TXP
TXC
IN
OUT
TXP
TXC
IN OUT
CNTR
EGSM900
RXI
RXQ
26 Mhz
AFC
Sys.clock
Data
Clock
Enable
Reset
TXIP
TXIM
TXQP
TXQM
TXA TXP
TXC
15 dB
15 dB
DCS1800/PCS1900
3420 - 3980 MHz
HONI
INOUT
AGC
2
1
3
5 4
PCS1900
2
1
3
5
4
IN OUT
IN OUT
AGC
IN OUT
AGC
INOUT
BIAS
IN OUT
IN OUT
AGC
IN OUT
AGC
INOUT
BIAS
Pwr det
Power amplifier
IN
IN
OUT2
OUT1
IN
OUT2
OUT1
IN
OUT2
OUT1
IPA2
IPA1
Mode (GSM/EDGE)
DCS1800
SAW
Front end
module
Antenna
INOUT
INOUT
INOUT INOUT
INOUT
IN OUT
IN OUT IN OUT
IN OUT
INOUT
INOUT
INOUT
SAW
EGSM 900
BAW-LNA
HONI