skyworks?solutions,?inc.?????phone?[781]?376-3000?????fax?[781]?376-3100?????sales@skyworksinc.com?? ???www.skyworksinc.com ? 200709?rev.?f?????skyworks?proprietary?information?????products?and?product?information?are?subject ?to?change?without?notice.?????february?20,?2009 1 SKY12329-350LF: gaas digital attenuator 5-bit, 1 db lsb 400 mhz?4 ghz data sheet applications l ?? transceiver?transmit?automatic?level?control?or?receive?auto- matic?gain?control?in?wimax,?gsm,?cdma,?wcdma,?wlan,? bluetooth ? ,?zigbee ? ,?land?mobile?radio?base?stations?or? terminal?equipment l ?? general?purpose?signal?attenuation?in?telecommunications?and? instrumentation?applications features l ?? broadband:?400?mhzC4?ghz l ?? attenuation?range:?31?db l ?? least?significant?bit?attenuation:?1?db l ?? low?insertion?loss:?1.2?db?@?900?mhz l ?? single?positive?control?voltage:?2.7C5.5?v l ?? low?current?consumption:?<100?a?@?5?v l ?? small?qfn-16?3?x?3?mm?package?with?exposed?paddle? l ?? lead?(pb)-free?and?rohs-compliant?msl-1?@?260?c? per?jedec?j-std-020 functional block diagram rf i npu t/output rf i npu t/output 16 db 8 db 4 db 2 db 1 db v 1 v 2 v 3 v 4 v 5 description the?SKY12329-350LF?is?a?monolithic?gaas,?binary-weighted,? 5-bit,?single?positive?control?voltage?digital?attenuator?which? operates?from?400?mhzC4?ghz.?the?attenuator?has?a?least? significant?bit?(lsb)?of?1?db?and?total?attenuation?of?31?db.?the? two?rf?ports?are?bilateral;?each?can?be?used?as?the?rf?input?or? the?rf?output.?this?attenuator?requires?an?external?supply? voltage?of?2.7C5.5?v. the?SKY12329-350LF?is?comprised?of?5?fixed?attenuators?in? cascade,?each?of?which?having?a?shunt?bypass?switch.?beginning? at?the?lsb,?which?is?1?db,?each?succeeding?fixed?attenuator?pro- duces?twice?the?attenuation?of?the?preceding?stage.?the?state?of? each?bypass?switch?is?controlled?by?the?logic?level?voltage?applied? to?the?associated?control?voltage?input;?a?logic?high?voltage?closes? the?associated?switch,?thereby? bypassing?that?fixed?attenuator?stage,?and?a?logic?low?opens?the? switch?to?force?the?input?signal?to?that?stage?through?the?associ- ated?attenuator.? dc?power?consumption?is?very?low,?100?a?maximum?with?con- trol?voltage?and?supply?voltage?of?5?v.?the?switch?can?operate? over?the?temperature?range?of?-40?c?to?+85?c.? an?evaluation?board?is?available?upon?request. skyworks?offers?lead?(pb)-free,?rohs?(restriction?of? hazardous?substances)-compliant?packaging. new downloaded from: http:///
skyworks?solutions,?inc.?????phone?[781]?376-3000?????fax?[781]?376-3100?????sales@skyworksinc.com?? ???www.skyworksinc.com ? february?20,?2009?????skyworks?proprietary?information?????products?and?product?information?are?sub ject?to?change?without?notice.?????200709?rev.?f data?sheet?????SKY12329-350LF 2 ? parameter? ? condition? frequency? min.? typ.? max.? unit switching?characteristics? ? ? ? ? ? on/rise?time? ? 50/90%?or?10/90%?rf? ? ? 150? ? ns off/fall?time? ? 50/10%?or?90/10%?rf? ? ? 500? ? ns input?power?for?1?db?compression? v low ?=?0?v,?v high ?=?3?v? 900?mhz? ? 29? ? dbm ?? v low ?=?0?v,?v high ?=?5?v? 900?mhz? ? 31? ? dbm input?third?order?? ? for?two?input?tones.??+5?dbm?each?tone? ? ? ? ? intermodulation?intercept? v low ?=?0?v,?v high ?=?3?v? 1C4?ghz? ? 39? ? dbm ?? v low ?=?0?v,?v high ?=?5?v? 1C4?ghz? ? 41? ? dbm thermal?resistance? junction?to?package?terminal? ? ? 45?? ? c/w? supply?voltage? ? ? ? ? v high ?-?0.2? ? v high ?+?0.2? v control?voltage? ? high? ? ? 2.7? ? 5.5? v ? ? low? ? ? -0.2? ? 0.2? v control?port?current? v ctl ?=?v high ? ? ? ? 15? 100? a ?? v ctl ?=?v low ? ? ? ? 5? 20? a ? parameter? ? condition? frequency? min.? typ.? max.? unit insertion?loss? ? ? ? 0.4C1.0?ghz? ? 1.2?? 1.6? db ? ? ? ? 1.0C2.0?ghz? ? 1.5? 1.9? db ? ? ? ? 2.0C3.0?ghz? ? 1.8? 2.2? db ? ? ? ? 3.0C4.0?ghz? ? 2.7? 3.1? db attenuation?range? ? ? ? ? ? 31? ? db attenuation?accuracy?? attenuation?referred?to?insertion?loss.?? ? ? ? ? all?attenuation?states?? 0.4C1.0?ghz? ?(0.35?+?3%?of?attenuation?? db ? ? ? ? ? setting?in?db) ? ? all?attenuation?states?? 1.0C3.0?ghz? ?(0.3?+?3%?of?attenuation?? db ? ? ? ? ? setting?in?db) ? ? 1C15?db?attenuation?states? 3.0C4.0?ghz? ?(0.5?+?5%?of?attenuation?? db ? ? ? ? ? setting?in?db) ? ? 16C31?db?attenuation?states? 3.0C4.0?ghz? ?(0.6?+?6%?of?attenuation?? db ? ? ? ? ? setting?in?db) return?loss? ? ? ? 0.4C1.0?ghz? ? 7? ? db ? ? ? ? 1.0C4.0?ghz? ? 10? ? db operating characteristics v ctl = 0 v/5 v, t = 25 c, p input = 0 dbm, z o = 50 w , unless otherwise noted electrical specifications v ctl = 0 v/5 v, t = 25 c, p input = 0 dbm, z o = 50 w , unless otherwise noted downloaded from: http:///
data?sheet?????SKY12329-350LF skyworks?solutions,?inc.?????phone?[781]?376-3000?????fax?[781]?376-3100?????sales@skyworksinc.com?? ???www.skyworksinc.com ? 200709?rev.?f?????skyworks?proprietary?information?????products?and?product?information?are?subject ?to?change?without?notice.?????february?20,?2009 3 typical performance data v ctl = 0 v/5 v, t = 25 c, p input = 0 dbm, z o = 50 w , unless otherwise noted insertion?loss?vs.?frequency frequenc y (ghz ) insertion?loss?(db) 0 1.0 2.0 3.0 4.0 0.5 1.5 2.5 3.5 4.5 -4.0 -3.6 -3.2 -2.8 -2.4 -2.0 -1.6 -1.2 -0.8 -0.4 0 attenuation?vs.?frequency 1 0 1.0 2.0 3.0 4.0 0.5 1.5 2.5 3.5 4.5 frequency?(ghz) attenuation?(db) 31?db 25?db 26?db 27?db 28?db 29?db 30?db 19?db 20?db 21?db 22?db 23?db 24?db 13?db 14?db 15?db 16?db 17?db 18?db 7?db 8?db 9?db 10?db 11?db 12?db 1?db 2?db 3?db 4?db 5?db 6?db -3 2 -3 0 -2 8 -2 6 -2 4 -2 2 -2 0 -1 8 -1 6 -1 4 -1 2 -1 0 -8 -6 -4 -2 0 attenuation?vs.?frequency 1 1C15?db 0 1.0 2.0 3.0 4.0 0.5 1.5 2.5 3.5 4.5 frequency?(ghz) attenuation?(db) 13?db 14?db 15?db 7?db 8?db 9?db 10?db 11?db 12?db 1?db 2?db 3?db 4?db 5?db 6?db -1 6 -1 4 -1 2 -1 0 -8 -6 -4 -2 0 attenuation?vs.?frequency 1 16C31?db 0 1.0 2.0 3.0 4.0 0.5 1.5 2.5 3.5 4.5 frequency?(ghz) attenuation?(db) 31?db 25?db 26?db 27?db 28?db 29?db 30?db 19?db 20?db 21?db 22?db 23?db 24?db 16?db 17?db 18?db -3 5 -3 3 -3 1 -2 9 -2 7 -2 5 -2 3 -2 1 -1 9 -1 7 -1 5 1.?attenuation?normalized?to?insertion?loss downloaded from: http:///
skyworks?solutions,?inc.?????phone?[781]?376-3000?????fax?[781]?376-3100?????sales@skyworksinc.com?? ???www.skyworksinc.com ? february?20,?2009?????skyworks?proprietary?information?????products?and?product?information?are?sub ject?to?change?without?notice.?????200709?rev.?f data?sheet?????SKY12329-350LF 4 v 1 v 2 v 3 v 4 v 5 ? attenuation ?v high ?v high ?v high ?v high ?v high ? reference?insertion?loss ?v low ?? v high ?v high ?v high ?v high ? 1?db ?v high ?v low ?v high ?v high ?v high ? 2?db ?v high ?v high ?v low ?v high ?v high ? 4?db ?v high ?v high ?v high ?v low ?v high ? 8?db ?v high ?v high ?v high ?v high ?v low ? 16?db ?v low ?v low ?v low ?v low ?v low ? 31?db truth table 2.7?v??400?mhz,?? ?? v ctl ?=?0/8?v control?voltage?range?? -0.2?< ?v c data?sheet?????SKY12329-350LF skyworks?solutions,?inc.?????phone?[781]?376-3000?????fax?[781]?376-3100?????sales@skyworksinc.com?? ???www.skyworksinc.com ? 200709?rev.?f?????skyworks?proprietary?information?????products?and?product?information?are?subject ?to?change?without?notice.?????february?20,?2009 5 ?pin?number? pin?name? ? description ? 1,?4C9? gnd? ?equipotential?pointequipotential?points?for? control?voltages?and?rf?circuits.?must?be? connected?to?pcb?ground?via?lowest?possible? ? 2? rf1? ?rf?input/outputrf?input?or?output?port.? a?dc?block?is?required?for?this?port. ? 3,?10? n/c? no?connection ? 11? rf2? ?rf?input/outputrf?input?or?output?port.? a?dc?block?is?required?for?this?port. ? 12? v 5 ? ?control?voltagecontrol?voltage?input?for? 16?db?weighted?bit?(msb) ? 13? v 4 ? ?control?voltagecontrol?voltage?input?for? 8?db?weighted?bit ? 14? v 3 ? ?control?voltagecontrol?voltage?input?for? 4?db?weighted?bit ? 15? v 2 ? ?control?voltagecontrol?voltage?input?for? 2?db?weighted?bit ? 16? v 1 ? ?control?voltagecontrol?voltage?input?for? 1?db?weighted?bit?(lsb) pin descriptions v 1 v ss v 2 v 4 v 3 v 5 pin out SKY12329-350LF evaluation circuit pcb v 1 v 2 v 3 v 4 v 5 th r ough line 13 16 15 14 12 11 10 9 7 6 5 1 2 3 4 8 rf 2 rf 1 nc v s r 1 r 2 r 3 r 4 r 5 r 6 c1 c3 c4 c2 sky 1329-350lf nc SKY12329-350LF evaluation circuit evaluation board the?evaluation?board?for?SKY12329-350LF?allows?the?part?to? be?fully?exercised.?the?insertion?loss?of?the?transmission?lines? between?j 1 Cu 1 ?and?u 1 Cj 2 ?can?be?determined?by?measuring?the? performance?of?the?calibration?through?line,?which?contains?two? dc?block?capacitors?(560?pf)?in?identical?positions?to?the?dc? blocks?present?in?the?main?circuit.? the?state?of?the?SKY12329-350LF?is?controlled?by?applying?the? appropriate?logic?level?voltages?to?ports?v 1 ?through?v 5 ,?per?the? truth?table caution: although this device is designed to be as robust as possible, esd (electrostatic discharge) can damage this device. this device must be protected at all times from esd. static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. industry-standard esd precautions must be employed at all times. ?component? ? description? default ?c 1 Cc 4 ? dc?blocking?capacitor? 560?pf,?size?0402 ?r 1 ? rf?block? ? 10k? w ,?size?0402 ?r 2 Cr 6 ? current?limiting? ? 100? w ?u 1 ? SKY12329-350LF?gaas?digital?attenuator? ?j 1 ,?j 2 ?? sma?connectors evaluation board components 13 16 15 14 12 11 10 9 7 6 5 1 2 3 4 8 gndgnd gnd gnd gn dg nd gnd v 1 v 2 v 3 v 4 v 5 rf2 rf1 nc nc downloaded from: http:///
skyworks?solutions,?inc.?????phone?[781]?376-3000?????fax?[781]?376-3100?????sales@skyworksinc.com?? ???www.skyworksinc.com ? february?20,?2009?????skyworks?proprietary?information?????products?and?product?information?are?sub ject?to?change?without?notice.?????200709?rev.?f data?sheet?????SKY12329-350LF 6 exposed? pa d 0.008?(0.20?mm) seating?plane 0.001 (0.02?mm) 0.030?(0.75?mm) ?0.002?(0.05?mm) 0.118 (3.00?mm) 0.118?(3.00?mm) pin?1 indicator 0.059 (1.500?mm) 0.059?(1.500?mm) 0.029 (0.73?mm) 0.067?(1.70?mm) ?0.004?(0.10?mm) 0.067?(1.70?mm) ?0.004?(0.10?mm) -350 (qfn 3 x 3) 0.60 detail a exposed solder area 4x plated thru via 0.25 see detail a 16x 1.10 0.25 12x 0.50 pitch metal gnd pa d 1.70 0.225 x 45 1.70 land pattern downloaded from: http:///
data?sheet?????SKY12329-350LF skyworks?solutions,?inc.?????phone?[781]?376-3000?????fax?[781]?376-3100?????sales@skyworksinc.com?? ???www.skyworksinc.com ? 200709?rev.?f?????skyworks?proprietary?information?????products?and?product?information?are?subject ?to?change?without?notice.?????february?20,?2009 7 copyright???2007,?2008,?2009,?skyworks?solutions,?inc.?all?rights?reserved. information?in?this?document?is?provided?in?connection?with?skyworks?solutions,?inc.?(skyworks)?pr oducts?or?services.?these?materials,?including?the?information?contained?herein,?are?provided? by?skyworks?as?a?service?to?its?customers?and?may?be?used?for?informational?purposes?only?by?the?cus tomer.?skyworks?assumes?no?responsibility?for?errors?or?omissions?in?these?materials?or?the? information?contained?herein.?skyworks?may?change?its?documentation,?products,?services,?specificati ons?or?product?descriptions?at?any?time,?without?notice.?skyworks?makes?no?commitment?to?update?the?materials?or?information?and?shall?have?no?responsibility?whatsoever?for?conflicts,?incom patibilities,?or?other?difficulties?arising?from?any?future?changes.? no?license,?whether?express,?implied,?by?estoppel?or?otherwise,?is?granted?to?any?intellectual?prope rty?rights?by?this?document.?skyworks?assumes?no?liability?for?any?materials,?products?or? information?provided?hereunder,?including?the?sale,?distribution,?reproduction?or?use?of?skyworks?pr oducts,?information?or?materials,?except?as?may?be?provided?in?skyworks?terms?and? conditions?of?sale.?the?materials,?products?and?information?are?provided?as?is?without?warranty?of?any?kind,?whether?e xpress,?implied,?statutory,?or?otherwise,?including?fitness?for?a?particular?purpose?or?use,?merchantability,?performance,?quality?or?non-infringement?of?any?intellec tual?property?right;?all?such?warranties?are?hereby?expressly?disclaimed.?skyworks?does?not?warrant?the?accuracy?or?completeness?of?the?information,?text,?graphic s?or?other?items?contained?within?these?materials.?skyworks? shall?not?be?liable?for?any?damages,?including?but?not?limited?to?any?special,?indirect,?incidental, ?statutory,?or?consequential?damages,?including?without?limitation,?lost?revenues?or?lost?profits?that?may?result?from?the?use?of?the?materials?or?information,?whether? or?not?the?recipient?of?materials?has?been?advised?of?the?possibility?of?such?damage. skyworks?products?are?not?intended?for?use?in?medical,?lifesaving?or?life-sustaining?applications,?o r?other?equipment?in?which?the?failure?of?the?skyworks?products?could?lead?to?personal?injury,? death,?physical?or?environmental?damage.?skyworks?customers?using?or?selling?skyworks?products?for?u se?in?such?applications?do?so?at?their?own?risk?and?agree?to?fully?indemnify?skyworks?for?any?damages?resulting?from?such?improper?use?or?sale. customers?are?responsible?for?their?products?and?applications?using?skyworks?products,?which?may?dev iate?from?published?specifications?as?a?result?of?design?defects,?errors,?or?operation?of? products?outside?of?published?parameters?or?design?specifications.?customers?should?include?design?a nd?operating?safeguards?to?minimize?these?and?other?risks.?skyworks?assumes?no?liability?for? applications?assistance,?customer?product?design,?or?damage?to?any?equipment?resulting?from?the?use? of?skyworks?products?outside?of?stated?published?specifications?or?parameters.?skyworks,?the?skyworks?symbol,?and?breakthrough?simplicity?are?trademarks?or?registered?trademarks ?of?skyworks?solutions,?inc.,?in?the?united?states?and?other?countries.?third-party?brands? and?names?are?for?identification?purposes?only,?and?are?the?property?of?their?respective?owners.?add itional?information,?including?relevant?terms?and?conditions,?posted?at?www.skyworksinc.com,?are? incorporated?by?reference.? downloaded from: http:///
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