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| 1 ? ccaution: 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. prism? is a registered trademark of intersil americas inc. prism duette? and prism and design are trademarks of intersil americ as inc. all other trademarks mentioned are the property of their respective owner. ISL3090 10ghz vco the ISL3090 is a 10ghz sige monolithic vco circuit designed to simplify and reduce the cost and size of miniature wireless transceivers. a fully integrated vco requiring no external elements such as inductors or varactors great ly simplifies low cost local oscillator synthesized applications. included in this differential design is a high/low band selection and a low-power standby function. the ISL3090 directly interfac es with intersil?s 2.4/5ghz dualband zif (zero if) converte r (isl3690). the addition of the intersil?s wireless lan media access controller and baseband processor (isl3890) and intersil?s power amplifier (isl3990) completes a wirelesslan radio application targeting both the 802.11b 2.4ghz and 802.11a 5ghz standard. the ISL3090 is housed in a 16 lead quad flat no lead plastic (qfn) package suitable for mini-pci and pcmcia applications. pinout ISL3090 (qfn) top view features ? single supply . . . . . . . . . . . . . . . . . . . . . . . . . 2.7v to 3.0v ? frequency . . . . . . . . . . . . . . . . 9648 to 10640mhz typical ? fully integrated/no external varactors or resonators required ? isolation output buffer/reduced load pulling ? differential design/reduced spurs ? digitally controlled power down mode qfn package ? compliant to jedec pub95 mo-220 qfn - quad flat no leads - package outline ? near chip scale package footprint, which improves pcb efficiency and has a thinner profile applications ? high data rate wireless lan systems targeting the ieee 802.11a and 802.11b standards ? only required vco function for intersil prism duette? chip set ? wlan applications ? pcmcia wireless transceivers ? tdma packet protocol radios simplified block diagram 1 2 3 4 567 8 9 10 11 12 13 14 15 16 buff_gnd1 buff_gnd2 osc - osc + gnd vt ref v tune core_gnd1 core_vcc filter_cap1 filter_gnd filter_cap2 buff_vcc pe hb_lb core_gnd2 ordering information part number temp. range ( o c) package pkg. dwg. # ISL3090ir -40 to 85 16 lead qfn l16.3x3 ISL3090ir-tk -40 to 85 tape and reel osc + osc - vcc vcc vtune pe gnd gnd gnd vco bias hb_lb data sheet fn8045.1 june 2003
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