Nokia 9110 Service Manual
PAMS
Technical Documentation
RAE–2
BS8_RF
Page 3 – 5
Original 02/99
Introduction
This document defines the RF–module of the RAE–2 GSM–”engine”.
This section contains electrical specifications, functional descriptions,
block diagrams etc.
This section contains electrical specifications, functional descriptions,
block diagrams etc.
Technical summary
The RF in the RAE–2 GSM is based on the architecture used in DCT 3.
The RAE–2 RF Engine (figure below) is a single side design, on the
A–side, with all components located under the PDA unit. Shielding com-
prises three shielding cans with removable lids. The maximum building
height for the RF Engine is 2 mm.
A–side, with all components located under the PDA unit. Shielding com-
prises three shielding cans with removable lids. The maximum building
height for the RF Engine is 2 mm.
Match
Match
71MHz
SAW
CRFU
SUMMA
RX
SAW
TX
SAW
DUPLEX
232MHz
VCO
13MHz
VCTCXO
UHF
VCO
PA
Loop
Filter
Filter
116MHz
13MHz
CER
ANT
Loop
Filter
Filter
stripline
ustripline
ustripline
Detect
RF Characteristics
Table 1. Main RF characteristics
Item
Values
Receive frequency range
935 ... 960 MHz
Transmit frequency range
890 ... 915 MHz
Duplex spacing
45 MHz
Channel spacing
200 kHz