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ATR2808 Datasheet(PDF) 1 Page - ATMEL Corporation |
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ATR2808 Datasheet(HTML) 1 Page - ATMEL Corporation |
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1 / 3 page  Rev. 4693DS–DECT–08/04 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 × 7 mm Package • Few Low Cost External Components • No Mechanical Tuning Required 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 gaus- sian data filter for TX. Figure 1. Block Diagram TANK PC RC GF CP VCO f : n f : n CTRL LOGIC PD TX / RX SWITCH IR MIXER IF AMP 1 IF AMP 2 DEMOD BB FILTER 3-WIRE BUS DEMOD DAC RSSI TX DRIVER CLOCK DATA ENABLE RX_ON TX_ON PU_RX/TX PU_PLL TX_DATA RSSI BB_OUT CF DEMOD IF_TANK IF_IN MIXER OUT RF_IN TX_OUT VS_VCO CP LD REF_CLK VTUNE VREG VS_REG REG_CTRL VREG_VCO VCO REG RAMP GEN RAMP_OUT RAMP_SET AUX REG OLE PU_REG GND_VCO D/A I_CPSW RAMP D/A 2.9/5.8 GHz WDCET/ISM Single-chip Transceiver ATR2808 Summary Preliminary Note: This is a summary document. A complete document is available under NDA. For more information, please con- tact your local Atmel sales office. |
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