AT86RF535B

Features Single-chip 3.5GHz WiMAX Transceiver Fully Differential Design Low-IF/Zero-IF Transceiver Architecture; Requires No External Filters Self Calibration Mode for RX / TX Filters Support Channel Bandwidths of 3.5, 5.0, 7.0, 8.75MHz, and 10MHz Modulation up to 64QAM Ultra-fast Fractional-N Synthesizer Sensitivity < -74 dBm at 64-QAM, CR=¾, 7MHz BW Phase Noise Synthesizer: 0.8° (-37dBc) Low Supply Voltage: 3.0 V TX Output PRF: 0 dBm, -34 dB EVM RX/TX Operating Current: 270/315mA Typical Low Power Off Current: < 20µA Typical 56-lead QFN Package Low External Component Count Integrated Self IQ Calibration (no external components or control) HFDD Support 3.5GHz WiMAX Transceiver AT86RF535B Applications 3.5 GHz Band Wireless Communication Devices IEEE® 802.16-2004 Radios Supports OFDM up to 64QAM www.DataSheet4U.com Preliminary Description Atmel’s AT86RF535B is a fully integrated, low cost RF 3.5GHz Low-IF/Zero-IF conversion transceiver for WiMAX applications. It combines excellent RF performance, small size, and low current consumption. The AT86RF535 chip is fabricated on the advanced SiGe BiCMOS process AT46000. The transceiver combines LNA, PA driver, RX/TX mixer, RX/TX filters, VCO, Synthesizer, RX Gain control, and TX Power control, all fully digitally controlled. Only a minimum number of external components are required. 5190A–WiMAX–4/07 Figure 1. AT86RF535B Block Diagram TX Power Control RX Gain Control LNA I Q Synthesiz...