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| Features * Fully Integrated TX/RX with 2.9 GHz TX VCO for 5.8 GHz Applications Using a Frequency Doubler * Supply Voltage Range 3.4 V to 4.6 V * TX Preamplifier with 0 dBm Output Power at 2.9 GHz * Ramp-signal Generator for Power Ramping and Power Control of External SiGe Power Amplifier * Fast Settling Synthesizer (1.728 MHz Channel Spacing at 5.8 GHz) * Supports Multiple Reference Clocks (10.368 MHz/13.824 MHz) Benefits * * * * * Extended Battery Operating Time Low Current Consumption Very Small 7 x 7 mm Package Few Low Cost External Components No Mechanical Tuning Required 2.9/5.8 GHz WDCET/ISM Single-chip Transceiver ATR2808 Summary Preliminary Electrostatic sensitive device. Observe precautions for handling. Description The ATR2808 is an RF IC for low-power applications in the 5.8 GHz ISM band. The QFN 48-packaged IC is a complete transceiver including image rejection mixer, IF amplifier, FM demodulator, baseband filter, RSSI, TX preamplifier, power-ramping generator for power amplifiers, integrated synthesizer, fully integrated VCO and gaussian data filter for TX. Figure 1. Block Diagram MIXER IF_IN OUT IR MIXER RF_IN DEMOD BB FILTER RAMP_OUT RAMP_SET RAMP GEN RAMP D/A D/A RSSI DEMOD DAC RSSI GF TX_DATA DEMOD IF_TANK IF AMP 1 IF AMP 2 BB_OUT TANK CF VCO TX / RX SWITCH PC TX_OUT TX DRIVER f :n PD 3-WIRE BUS CLOCK DATA ENABLE VCO REG AUX REG CP RC f :n CTRL LOGIC RX_ON TX_ON PU_RX/TX PU_PLL VREG_VCO VS_VCO VREG VS_REG OLE GND_VCO PU_REG REG_CTRL VTUNE CP I_CPSW LD REF_CLK Rev. 4693DS-DECT-08/04 Note: This is a summary document. A complete document is available under NDA. For more information, please contact your local Atmel sales office. Ordering Information Extended Type Number ATR2808 Package QFN 48 Remarks Taped and reeled Package Information 2 ATR2808 [Preliminary] 4693DS-DECT-08/04 Atmel Corporation 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 487-2600 Atmel Operations Memory 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 RF/Automotive Theresienstrasse 2 Postfach 3535 74025 Heilbronn, Germany Tel: (49) 71-31-67-0 Fax: (49) 71-31-67-2340 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel: 1(719) 576-3300 Fax: 1(719) 540-1759 Regional Headquarters Europe Atmel Sarl Route des Arsenaux 41 Case Postale 80 CH-1705 Fribourg Switzerland Tel: (41) 26-426-5555 Fax: (41) 26-426-5500 Microcontrollers 2325 Orchard Parkway San Jose, CA 95131, USA Tel: 1(408) 441-0311 Fax: 1(408) 436-4314 La Chantrerie BP 70602 44306 Nantes Cedex 3, France Tel: (33) 2-40-18-18-18 Fax: (33) 2-40-18-19-60 Biometrics/Imaging/Hi-Rel MPU/ High Speed Converters/RF Datacom Avenue de Rochepleine BP 123 38521 Saint-Egreve Cedex, France Tel: (33) 4-76-58-30-00 Fax: (33) 4-76-58-34-80 Asia Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimshatsui East Kowloon Hong Kong Tel: (852) 2721-9778 Fax: (852) 2722-1369 ASIC/ASSP/Smart Cards Zone Industrielle 13106 Rousset Cedex, France Tel: (33) 4-42-53-60-00 Fax: (33) 4-42-53-60-01 1150 East Cheyenne Mtn. Blvd. Colorado Springs, CO 80906, USA Tel: 1(719) 576-3300 Fax: 1(719) 540-1759 Scottish Enterprise Technology Park Maxwell Building East Kilbride G75 0QR, Scotland Tel: (44) 1355-803-000 Fax: (44) 1355-242-743 Japan 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan Tel: (81) 3-3523-3551 Fax: (81) 3-3523-7581 Literature Requests www.atmel.com/literature Disclaimer: Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company's standard warranty which is detailed in Atmel's Terms and Conditions located on the Company's web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel's products are not authorized for use as critical components in life support devices or systems. (c) Atmel Corporation 2004. All rights reserved. Atmel (R) and combinations thereof are the registered trademarks of Atmel Corporation or its subsidiaries. Other terms and product names may be the trademarks of others. Printed on recycled paper. 4693DS-DECT-08/04 |
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