skyworks solutions, inc. ? phone [781] 376 - 300 0 ? fax [781] 376- 3100 ? sales@skyworks inc.com ? www.skyworksinc.com 201930d ? skyworks proprietary and confidential i nformation ? products and product informatio n are subject to change without notice ? january 14, 2013 1 data sheet sky122 32- 21 : h igh i i p3 2.6 5 - 3. 65 ghz voltage - controlled variable attenuator applications ? automatic power leveling/gain control circuits in cellular base stations and point - to - point radio if chains ? general wireless systems including wimax, lte, wcdma, vsat, and military communications features ? 2.6 5 to 3. 65 ghz broadband operating range ? minimum a ttenuation: 2 4 db ? control voltage range: 0 to 5 v ? high iip3: + 55 dbm ? low current consumption: <2 ma @ maximum attenuation ? small, mcm (8 - pin, 4.9 x 3.2 mm) package (msl 1 , 260 c per jedec j - std - 020) figure 1. sky122 32- 21 block diagram description the sky122 32- 21 is a voltage - controlled variable attenuator from skyworks series of high 3 rd order input in tercept point (iip3) components. the device has bee n designed to operate over the 2.6 5 to 3. 65 ghz frequency band, but is specifically optimized for use as a wide dynamic range, low distortion attenuator, centered at 3. 1 ghz. the sky122 32- 21 provid es monotonic attenuation performance over its entire contro l voltage range . this attenuator is comprised of a pair of matched pin diode s that terminate two ports of its internal 90 - degree hybrid coupler. the diodes are biased using an external control voltage signal. the attenuator requir es no external components . it operates with a control voltage range of 0 to 5 v and a 1. 7 ma typical control current at maximum attenuation . a functional block diagram is shown in figure 1. the pin configuration and package are shown in figure 2. signal pin assignments and function al pin descriptions are provided in table 1.
data sheet ? sky12232- 21 variable attenuator lpsltpmvupotodt1ipo - t - ts jtsj 2 s ts ssjsgjj i gsjt ss gsj sihjij t figure 2. sky122 32- 21 pinout C 8- pin mcm (top view) table 1. sky122 32- 21 signal descriptions pin # name description pin # name description ( (s .hs jhj ji 5 ( (s.hs jhjji 2 5- shjhjj jihj j j j ( (s. hs jhjji ( (s.hs jhjji 5- shjhjj jihj j j2 j technical description 5if4,: - j ih - s sj sjijjsgsgs 5 to ()sj jsshsh 5ijs sjssj jhsijh .jsgs i jjs i j h js 5ijsjsjg jsgij i sjsgjs - hs ? 5ijsj jh sshjh i ij ss ishisjjs . 5is s jishshg to 5 ma jsss jj . is hjs s ijssishiig ij js 5ijjsjsssi sj gij .jjsii sjgi j s iissjjj g i isjss , ijiisj . 5ijs con shgsj 5 electrical and mechanical specifications 5ifbctpmvufnbyjnvnsbujohtpguif 4,: - ssj j5 sjjgjjssjj5 . sgsissjjgsi , - sj s jjhsishi .
data sheet ? sky122 32- 21 variable attenuator lpsltpmvupotodt1ipo - t - ts jtsj ts ssjsgjj i gsjt ss gsj s ihjij t s table 2. sky122 32- 21 absolute maximum ratings parameter symbol minimum maximum units pouspmpmubh js sss i ma jssj h shss 5 5( C sjhss 5 C sjjish ishj.. ).). .ij... note: sjsjhjjgssjsjsjjj5isjhjji ssij jis sssijsjjhgijjjissjshi j caution : although this device is designed to be as robust as possible, electrostatic discharge (esd) can damage this device. this devi ce must be protected at all times from esd. static charges may easily produce potentials of several kilov olts on the human body or equipment, which can discharge without detection. industry - standard esd precautions s hould be used at all times. table 3. sky122 32- 21 electrical specifications (note 1) (t op = +25 c, v control = 0 to 5 v, p in = 0 dbm, characteristic impedance [ z o ] = 50 , unless otherwise noted) parameter symbol test condition min typical max units uuovbupo attn g ghz, 5- 2 2 sss i 5- ma sj - 5- g() s - 5- g() s sssj i 5- g ghz, g ghz 55 note 1: sgsjhs sijjj jij5
data sheet ? sky122 32- 21 variable attenuator skyworks soluti ti - t - ts jtsj s ts ssjsgjj i gsjt ss gsj sihji j t typical performance characteristics ( t op = +25 c, v control = 0 to 5 v, p in = 0 dbm, characteristic impedance [z o ] = 50 , j1 = input port, j2 = output port, unless otherwise noted) figure 3. attenuation vs frequency over control voltage figure 5. attenuation flatness vs control voltage (f = 2. 6 5 to 3.65 ghz) figure 4. attenuation vs control voltage over temperatu re (f = 3.1 ghz) figure 6. current vs control voltage over temperature
data sheet ? sky122 32- 21 variable attenuator lpsltpmvupotodt1ipo - t - ts jtsj ts ssjsgjj i gsjt ss gsj s ihjij t s 5 figure 7. input return loss vs frequency over control voltage figure 8. output return loss vs frequency over control voltage evaluation board description 5if 4,: - j s ji sgsgi , - sjs . an sjhgsijsjijjhs . 5ijssjjijjhs . 5ijgi, - is s jh 5 i5-j s . package dimensions 5if1mbzpvugppusjougpsuif 4,: - jij jhs . 5jsjhsijjhs 2 . hjjgsi - j .. sijjhs , sjjssjjjhs . package and handling information otusvdujpotpouiftijjohdpoubjofsmbcfmsfhbsejohfyptvsfup npjtuvsfbgufsuifdpoubjofstfbmjtcsplfonvtucfgpmmpfe 0uifsjtfspcmfntsfmbufeupnpjtuvsfbctp sujponbzpddvs ifouifbsujttvckfdufeupijhiufnfsbuvsfevsjohtpmefs bttfncmz 5) , - js.jsjjj- .- ) - gssjh s jjjgsjsgsi sjj pcb design & smt assembly/rework guidelines for mcm - l packages epdcs siijhijsiisjj sjsjssgjs sjjj gijssijj s sgs
data sheet ? sky122 32- 21 variable attenuator skyworks soluti ti - t - ts jtsj s ts ssjsgjj i gsjt ss gsj sihji j t figure 9. sky122 32- 21 evaluation board assembly diagram figure 10 . layer detail physical characteristics
data sheet ? sky122 32- 21 variable attenuator lpsltpmvupotodt1ipo - t - ts jtsj ts ssjsgjj i gsjt ss gsj s ihjij t s figure 11. sky122 32- 21 pcb layout footprint
data sheet ? sky122 32- 21 variable attenuator skyworks soluti ti - t - ts jtsj s ts ssjsgjj i gsjt ss gsj sihji j t figure 1 2 . typical part mar kings (top view) figure 13. sky122 32- 21 8- pin mcm package dimensions
data sheet ? sky122 32- 21 variable attenuator lpsltpmvupotodt1ipo - t - ts jtsj ts ssjsgjj i gsjt ss gsj s ihjij t s figure 14. sky122 32- 21 tape and reel dimensions
data sheet ? sky122 32- 21 variable attenuator skyworks soluti ti - t - ts jtsj s ts ssjsgjj i gsjt ss gsj sihji j t ordering information model name manufacturing part number evaluation board part number : - hssj s , - , - - sjhi sjjhis gsjjijjsjjjjisjiswsssj5i sj jjhijgsjjisjssj ssjjsgsjgsjsisss jjjgsssssjjjisjsi jg sjjisjsihjjssjjgjjsssjj jjijsj isjsjgsjiisjjj isgsgjjjjjjsisjggjjsjjhgsgsih jiissjjsisjjhsjsssjhiij sjjj gssjss jgsjsjissjjhijsjjssjsgssjgsjs sjsjjs5sjjg 5).5- 5.5iw5)55,)5).-5555)- (5 5-.)5-5.2-5 - (.55--5- 5()5--)5)- -.,,555).-55).555()5)5.5 5)5).5-,, )--5--.(- (55-.55-55-55525-.(-(5)5-.55 -5-555)5.-5.5)5).5-.5)5)55)5. 5- )5) -5).( sssjgsjjjgjhsjg - jjhjjsisjjijiigjsgisssjs i ijsjshssjhsjhssgsjijj ijssjhsgjjgsgs hsjhgsijsss sss jgsijssjjjhssijijgsjijgjjs gjhgsssssjg sjgjisssjhjgjjsij jhsjhghsjjjiissjsjjjgs jjjssjhshjsjhgsigss jgji jgjjsss sisisishijjjwssssshjsssgsj jijissj5ijs - ss sgsjjgjj ssissgijssjsjjjgsjjjhssjj sj sjsssgs
|
