products > product profiles > ZL20250
ZL20250 2.5G Multimode Transceiver
| Product Status - Obsolete |
|
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 is provided. Baseband filtering is also included. 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. The transmit output stages can be programmed to optimize performance and current consumption.
The transceiver 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.
Features
- Fully Integrated Multimode Transceiver
- Quad Band GSM (800/900/1800/1900 MHz)Compatible
- Dual Band IS136 (800/1900 MHz) Compatible
- GPRS Class 12 and EDGE Capable
- Receive - IF to Baseband I and Q
- Transmit - Baseband I and Q to RF
- Integrated Filters
- FM Demodulator with RSSI
- RF and IF Synthesizers
- Fully Programmable via serial bus
- 3 Volt operation
- Small scale package
Typical Applications
-
Multi-mode GAIT IS136/GSM mobile telephones
- Dual-band (850/PCS1900) TDMA/AMPS mobile telephones
- Cellular 850MHz AMPS mobile telephones and telematics systems
- 2.5G World telephone Quad-band GSM(850/900/1800/1900MHz) compatible
- PCS 1900 TDMA mobile telephones
Product Information
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Product Availability and Packaging
| Ordering Part No. |
Package Type |
No. of Pins |
Lead-free Option |
Shipping Option |
Lead Time (Weeks) |
Status |
 |
| ZL20250/LCE |
MLP |
56 |
|
Tubes. Bake & Drypack |
|
Obsolete |
| ZL20250/LCF |
MLP |
56 |
|
Tape & Reel. Bake & Drypack |
|
Obsolete |
Product Lead-Times when quoted are not guaranteed and are provided as a
general guideline only; they may be varied from time to time without
notice. Updated estimates or actual schedule commit dates will be provided
at the time of order placement with Zarlink or its distributor.
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Related Products
| Part Number | Description |
|
 ZL20200 |
Dual Band IS136/AMPS Transceiver |
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Product Positioning
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| Copyright 2008, Zarlink Semiconductor Inc. All Rights Reserved. |
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ZL20250 Data Sheet
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