TRF2436

• Integrated Temperature Compensated TX Power Detectors
• Highly Integrated 802.11 a/b/g Radio Frequency Front End ASIC
• PA Bias Control Function
• Fully Integrated Up/Down Converters, LNAs,
• Lead Free Package (TBD) PAs and T/R Switches
• Antenna Port OP 1dB = +23 dBm Typical
• Super Heterodyne Architecture for Superior
• Antenna Port OIP3 = +33 dBm, Typical Adjacent Channel Rejection Performance
• Frequency Range: 2.4 to 2.5 and 4.9 to 5.9
• Differential LO and IF Interface for Enhanced GHz Spurious/EMI Performance • Noise Figure: 4 dB ISM Band, 6 dB 5 GHz
• Common Frequency Plan uses a Single LO Bands Typical and Common IF for Single IF Filter for Both • Typical Gain: 38 dB TX, 20dB RX Bands
• IF = 374 MHz

The TRF2436 is a fully integrated Dual Band Tri Mode Radio Frequency Front End (RFFE) designed specifically for use in 802.11 a/b/g applications. The TRF2436 is designed to perform RF up and down conversions in the unlicensed ISM and 4.9-5.9 GHz bands. The TRF2436 uses a common IF frequency for both bands, eliminating the need for additional IF filtering. Combined with the TI TRF2432 IF/IQ Transceiver/Synthesizer, the TRF2436 completes the TI WLAN two-chip radio.

The TRF2436 incorporates all of the RF blocks for both the " b/g " and " a " bands except for low cost ceramic filters. The ASIC includes LNAs, PAs, mixers, bias circuitry, RX gain control, transmit coupler detectors, and T/R switches. High integration and internal RF matching enhances performance and greatly reduce external part count. The only external components of TRF2436 needed (other than simple passives) for operation are RF filters and external low power DC switching FETs.