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ZL20250

Zarlink Semiconductor
Part Number ZL20250
Manufacturer Zarlink Semiconductor
Description 2.5G Multimode Transceiver
Published Mar 26, 2007
Detailed Description www.DataSheet4U.com ZL20250 2.5G Multimode Transceiver Data Sheet Features • • • • • • • • • • • • Quad Band GSM (800/9...
Datasheet PDF File ZL20250 PDF File

ZL20250
ZL20250

Overview
www.
DataSheet4U.
com ZL20250 2.
5G Multimode Transceiver Data Sheet Features • • • • • • • • • • • • Quad Band GSM (800/900/1800/1900 MHz) Compatible Dual Band IS136 (800/1900 MHz) Compatible GPRS Class 12 and EDGE Capable Fully Integrated Dual Band Transceiver Receive - IF to Baseband I and Q Transmit - Baseband I / Q to RF Integrated Filters FM Demodulator RF and IF Synthesizers Fully Programmable via serial bus 3 Volt operation Small scale package Ordering Information ZL20250/LCE (Tubes) 56 pin QFN ZL20250/LCF (Tape and Reel) 56 pin QFN -40 ° C to +85° C September 2003 Description The ZL20250 is a fully integrated transceiver for multimode IS136/GSM/GPRS/EDGE handsets.
The dual IF inputs to the receive path are amplified and down-converted to baseband I and Q signals.
Gain control and baseband filtering are provided.
A FM demodulator is also provided where AMPS compatibility is required.
The transmit path consists of a quadrature modulator, gain control at IF and up-conversion to RF.
Dual band RF outputs are provided.
ZL20250 also includes a fractional N RF synthesizer and two IF synthesizers to provide all local oscillator signals required.
Flexible programming is provided via a 3 wire serial bus.
Additional control pins allow accurate timing control when switching between modes.
Applications • • • • • • GAIT IS136/GSM/EDGE Mobile Telephones Dual Band (850/PCS1900) TDMA/AMPS Mobile Telephones Cellular 850MHz TDMA/AMPS Mobile Telephones PCS1900 TDMA Mobile Telephones 2.
5G World Phones - Quad Band (850/900/1800/1900) Cellular Telematic Systems GSM/EDGE Rx I 90° Rx Q IS136 FM Demod Rx VHF PLL Serial Interface Control FM RSSI LOCK DET UHF LO O/P UHF VCO UHF PLL Tx VHF PLL 900 MHz Tx IQ Mod 1900 MHz Tx Tx I Tx Q Tx IF Filter (Opt) Figure 1 - Block Diagram 1 Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2003, Zarlink Semiconductor Inc.
All Rights Reserved.
ZL20250 Package Diagr...


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