ISL3680

® ISL3680 Data Sheet March 2003 FN8053 Direct Conversion Transceiver The Intersil ISL3680 is a highly integrated UHF2 process, direct conversion transceiver and is part of a 2.4GHz, IEEE802.11b/g compliant radio chipset. The ISL3680 directly interfaces with Intersil’s ISL3880 Medium Access Controller with Integrated Baseband processor. The addition of Intersil’s ISL3980 power amplifier and ISL3090 10GHz VCO completes a WLAN transceiver application. Features • Highly integrated Dual Band RF to baseband solution • Frequency of operation . . . . . . . . . . . . . . . . 2.4 to 2.5GHz • Low supply operation . . . . . . . . . . . . . . . . . . . . 2.7 to 3.3V • Noise figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.4dB • TX OFDM Output Power . . . . . . . . . . . . . . . . . . . . .-5dBm • TX I/Q MTPR, PAR=12 . . . . . . . . . . . . . . . . . . . . . . -45dB • RX Voltage gain . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 74dB Pinout ISL3680 (QFN) TOP VIEW BB_GND/RREF_2 10 MIXER_GND_2 BB_GND/RREF 11 MIXER_GND 12 MIXER_VCC Q_OFFSET+ • RX I/Q MTPR, PAR=12, High Gain . . . . . . . . . . . . . -35dB • TX/RX switching speed . . . . . . . . . . . . . . . . . . . . . . .