GSM850 Datasheet, PDF (1/38 Pages) Silicon Laboratories – Single 8x8 mm package CMOS process technology Intergrated GSM/GPRS transceiver including

Aero I
AERO™ I TRANSCEIVER
FOR GSM AND GPRS WIRELESS COMMUNICATIONS
Features
„ Single 8 x 8 mm package
„ Quad-band support:
„ CMOS process technology
z GSM 850 Class 4, small MS
„ Integrated GSM/GPRS
transceiver including:
z Low-IF receiver
z Universal baseband interface
z Offset-PLL transmitter
z Dual RF synthesizer
z E-GSM 900 Class 4, small MS
z DCS 1800 Class 1
z PCS 1900 Class 1
„ GPRS Class 12 compliant
„ 3-wire serial interface
„ 2.7 V to 3.0 V operation
„ Integrated VCOs, frequency
synthesizers, and tuning inductors
Applications
„ Multi-band GSM/GPRS digital cellular handsets
„ Multi-band GSM/GPRS wireless data modems
Description
The Aero I transceiver is a complete RF front end for multi-band GSM
and GPRS wireless communications. The transmit section interfaces
between the baseband processor and the power amplifier. The receive
section interfaces between the RF band-select SAW filters and the
baseband processor. All sensitive components, such as RF/IF VCOs,
loop filters, and tuning inductors, are completely integrated into a single
compact package.
Pin Assignments
(Top View)
Si4205-BM
(For pin description see page 33)
32
28 27 26 25 24 23 22
31
RXQN 1
RXIP 2
GND
RXIN 3
TXIP 4
TXIN 5
TXQP 6
GND
TXQN 7
21 RFIGN
20 RFIGP
GND
19 RFIDN
18 RFIDP
17 RFIPN
GND
16 RFIPP
15 GND
29
8 9 10 11 12 13 14
30
Ordering Information:
See page 34.
Patents pending
Functional Block Diagram
GSM
DCS
PCS
GSM _PA
DCS
PCS _PA
LNA
LNA
LNA
0 / 90
PGA
ADC
PGA
ADC
100 kHz
I
DET
Si4205
PGA DAC I
PGA DAC Q
XOUT
I
Q
RF
IF
PLL
PLL
VC-TCXO
13 or 26 MHz
XIN
AFC
Rev. 1.0 12/03
Copyright © 2003 by Silicon Laboratories
Aero I