1 ? fn8065.1 caution: these devices are sensitive to electrosta tic discharge; follow proper ic handling procedures. 1-888-intersil or 321-724-7143 | intersil (and design) is a registered trademark of intersil americas inc. copyright ? intersil americas inc. 2003. all rights reserved all other trademarks mentioned are the property of their respectiv e owners. prism? is a registered trademark of intersil americas inc. prism and design is a trademark of intersil americas inc. ISL3686A direct down conversion transceiver the intersil ISL3686A is a highly integrated sige process, direct down conversion transceiver and is part of the prism gt, 2.4ghz 54mbps , ieee802.11b/g compliant radio chipset. the ISL3686A direct ly interfaces with intersil?s isl3865a baseband processor (bbp) and isl3880 integrated medi um access controller (mac) with bbp. the addition of the isl3980 inters il power amplifier, and the isl3084 5ghz vco completes the lan radio application. pinout ISL3686A (mlfp) top view features ? highly integrated rf to baseband solution ? frequency of operation . . . . . . . . . . . . 2.4ghz to 2.5ghz ? low supply operation . . . . . . . . . . . . . . . . . . . 2.7v to 3.3v ? noise figure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.1db ? voltage gain . . . . . . . . . . . . . . . . . . . . . . . +1.5db to 81db ? gain and phase balance, typical . . . . . . . . . 0.5db, 2deg. ? tx/rx switching speed . . . . . . . . . . . . . . . . . . . . . . < 1 s ? direct simple interface to isl3880 ? enhanced replacement for isl3686 applications ? pc card wireless lan adapters ? high data rate wireless lan systems targeting ieee802.11b/g standards ? spread spectrum wlan rf modems ? tdma or csma packet protocol radios ? pci wireless lan cards ? isa, isa pnp wlan cards ? pcn / wireless pbx / wireless local loop 3 2 1 44 45 46 47 48 49 50 51 52 43 56 55 54 mx_vcc lna_vcc mx_gnd lna_gnd lna_in- shield lna_in+ shield tx_i+ tx_q+ tx_q- tx_gnd tx_out tx_i- tx_vcc tx_gnd cp_vdd ref_in+ clk ref_in- cp_do pre_vdd pre_gnd cp_gnd data lo_in- qlo_vcc lo_in+ qlo_gnd rx_i+ rx_i- rx_agc_gnd bb_agc- rx_q- rx_q+ qoffset+ rx_agc_vcc pe2 pe1 1.2_ref tx_agc lna_h/l qoffset- ioffset+ ioffset- bb_agc+ bb_ovld le mx_gnd 4 5 6 7 8 9 10 11 12 13 14 25 24 23 22 21 20 19 18 17 16 15 27 26 28 38 37 36 35 34 33 32 31 30 29 41 40 39 42 53 bb_rref bb_gnd synth_vdd synth_gnd tx_bb_vcc ld tx_bb_gnd agc and dc offset ctrl i + q quadrature synthesizer i+q 2 i+q ordering information part number temp. range ( o c) package pkg. dwg. # ISL3686Air -40 to 85 56 ld mlfp l56.8x8 ISL3686Air-tk tape and reel data sheet may 2003
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