skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 203556b ? skyworks proprietary information ? products and pr oduct information are subject to change without notice februa ry 9, 2017 1 data sheet SKY12239-11: high iip3 10 mhz to 1.5 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 ? 10 mhz to 1.5 ghz broadband operating range ? low insertion loss: 2.5 db @ 700 mhz ? maximum attenuation level: 40 db @ 700 mhz ? control voltage range: 1 to 5 v ? high iip3: +50 dbm ? low current consumption: < 2 ma @ maximum attenuation ? small mcm (8-pin, 3.8 x 3.8 x 1 mm) package (msl3, 260 ? c per jedec j-std-020) s kywork s g reen tm product s are compliant with all applicable legi s lation and are halogen-free. for additional information, refer to skyworks de?ition of green tm , document number s q04C0074. 1 2 g nd 3 4 5 6 rf_in v_ s upply rf_out v_ c ontrol l_out l_in 20355 6 -002 figure 2. SKY12239-11 pinout (top view) 20355 6 -001 bia s c ircuitry v_ s upply (2.7 v) v_ c ontrol (1 v to 5 v) rf_out l_in l_out rf_in 4 5 6 13 2 figure 1. SKY12239-11 block diagram description the SKY12239-11 is a voltage-controlled variable attenuator from skyworks series of broadband, flat attenuation, high third order input intercept point (iip3) components. the device has been designed to operate over the 10 mhz to 1.5 ghz frequency band, and is specifically optimized for use as a wide dynamic range, low distortion attenuator. the SKY12239-11 provides monotonic attenuation performance over its entire control voltage range. this attenuator is comprised of four matched pin diodes that are biased using an external control voltage signal. the attenuator requires no external components. it operates with a control voltage range of 1 to 5 v and a 2 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 functional pin descriptions are provided in table 1.
data sheet ? SKY12239-11: voltage -controlled variable attenuator skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 2 february 9, 2017 ? skyworks proprietary information ? products a nd product information are subj ect to change without noti ce ? 203556b table 1. SKY12239-11 signal descriptions pin name description pin name description 1 rf_in rf input, ac coupled. no external components required. 5 l_out phase compensation inductor output 2 v_supply fixed reference supply, 2.7 v dc . 6 l_in phase compensation inductor input 3 rf_out rf output, ac coupled. no external components required. 7 gnd paddle of the device. ground to the applications board. provides thermal contact and rf ground. 4 v_control variable reference supply, 1.0 v to 5.0 v dc . technical description the SKY12239-11 is a 50 matched voltage controlled variable attenuator with monotonic attenuation performance from 10 mhz to 1.5 ghz over its entire control voltage range. this attenuator requires no external biasing or rf matching components. monotonic performance means the attenuation increases or decreases as the applied dc voltage increases or decreases. this attenuator is comprised of four matched pin diodes that terminate two ports of an internal matching network. the diodes are biased using an external control voltage signal that sets the bias current through a resistive network. the attenuator operates with a control voltage range of 1 to 5 v and a 2 ma typical control current at maximum attenuation. as the control voltage increases, the bias current through each of the pin diodes also increases. this increased bias current lowers the resistance of the pin diodes. maximum attenuation occurs when the resistance of the pin diodes is at maxmimum (control voltage of approximately 1 vdc). electrical and mechanical specifications the absolute maximum ratings of the SKY12239-11 are provided in table 2. electrical specifications are provided in table 3. performance characteristics for the SKY12239-11 are illustrated in figures 3 through 8. table 2. SKY12239-11 absolute maximum ratings 1 parameter symbol minimum maximum units control voltage v ct r l 0 5.5 v reference voltage v supply 5.5 v rf input power (cw) p in 1 w control current i cc 50 ma thermal impedance (v ctrl = 5 v, v supply = 2.7 v, p in = +21 dbm) ? jc +94 ? c/w storage temperature t stg C55 +125 ? c operating temperature t op C40 +105 ? c electrostatic discharge: charged device model (cdm), class 4 human body model (hbm), class 1b machine model (mm), class a esd 1000 500 100 v v v 1 exposure to maximum rating conditions for extended periods may reduce device reliability. there is no damage to device with onl y one parameter set at the limit and all other parameters set at or below their nominal value. exceeding any of the limit s listed here may result in permanent damage to the device. esd handling : although this device is designed to be as robust as possible, electrostatic discharge (esd) can damage this device. this device must be protected at all times from esd when handling or transporting. static charges may easily produce potentials of several kilovolts on the human body or equipment, which can discharge without detection. industry-standard esd handling precautions should be used at all times.
data sheet ? SKY12239-11: voltage -controlled variable attenuator skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 203556b ? skyworks proprietary information ? products and pr oduct information are subject to change without notice ? feb ruary 9, 2017 3 table 3. SKY12239-11 electrical specifications 1 (t op = +25 ? c, v ctrl = 1 to 5 v, v supply = 2.7 v, p in = 0 dbm, characteristic impedance [z o ] = 50 , unless otherwise noted) parameter symbol test condition min 2 typical max units rf specifications insertion loss (v ct r l = 5 v) |s21| 100 mhz 2 db 700 mhz 2.5 3.5 db 1500 mhz 3 db maximum attenuation (v ct r l = 1 v) |s21| 100 mhz 51 db 700 mhz 35 40 db 1500 mhz 33 db irl maximum attenuation (v ct r l = 1 v) |s11| 100 mhz 29 db 700 mhz 28 db 1500 mhz 22 db orl maximum attenuation (v ct r l = 1 v) |s22| 100 mhz 29 db 700 mhz 27 db 1500 mhz 21 db irl minimum attenuation (v ct r l = 5 v) |s11| 100 mhz 37 db 700 mhz 19 db 1500 mhz 13 db orl minimum attenuation (v ct r l = 5 v) |s22| 100 mhz 37 db 700 mhz 19 db 1500 mhz 13 db third order input intercept point (v ct r l = 5 v) iip3 100 mhz, 1 mhz tone spacing, +22 dbm/tone 50 dbm 700 mhz, 1 mhz tone spacing, +22 dbm/tone 50 dbm 1500mhz, 1 mhz tone spacing, +22 dbm/tone 50 dbm 1 db input compression point (v ct r l = 5 v) ip1db 12.5% duty cycle 34 dbm 40 dbm 40 dbm phase shift @ 150 nh 3 ? 700 mhz 15 degree dc specifications control voltage (v ctrl ) v ct r l 1.0 to 5.0 v nominal 1 5 5.5 v control current (i ctrl ) i ctl 5.0 v, v ct r l ; 2.7 v, v supply 20 ma supply voltage (v supply ) v supply fixed supply 2.7 v supply current (i supply ) i supply 2 ma settling time @ 700 mhz t settle v supply = 2.7 v, v ctrl change from 5 v to 1 v, settled within 0.2 db of respective state, 10 khz repetitive rate, 50% duty cycle 8 s 1 performance is guaranteed only under th e conditions listed in this table. 2 minimum specification is guaranteed by de sign and is not 100% production tested. 3 l1 is 0201 size,150 nh inductor from tdk. part number is mlg0603sr15j.
data sheet ? SKY12239-11: voltage -controlled variable attenuator skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 4 february 9, 2017 ? skyworks proprietary information ? products a nd product information are subj ect to change without noti ce ? 203556b typical performance characteristics (t op = +25 ? c, v ctrl = 0 to 5 v, p in = 0 dbm, characteristic impedance [z o ] = 50 , j1 = input port, j2 = output port, unless otherwise noted) 20355 6 -003 C45 C40 C35 C30 C25 C20 C15 C10 C5 0 0 0.1 0.2 0.3 0.4 0.5 0. 6 0.7 0.8 0. 9 1.0 1.1 1.2 1.3 1.4 1.5 1. 6 1.7 1.8 1. 9 2.0 input return lo ss frequency ( g hz) 1.0 v - s 11 1.2 v - s 11 1.4 v - s 11 1. 6 v - s 11 1.8 v - s 11 2.0 v - s 11 3.0 v - s 11 4.0 v - s 11 5.0 v - s 11 figure 3. attenuation vs frequency over control voltage 20355 6 -005 C45 C40 C35 C30 C25 C20 C15 C10 C5 0 0 0.1 0.2 0.3 0.4 0.5 0. 6 0.7 0.8 0. 9 1.0 1.1 1.2 1.3 1.4 1.5 1. 6 1.7 1.8 1. 9 2.0 attenuation (db) frequency ( g hz) C50 C55 1.0 v - s 21 1.2 v - s 21 1.4 v - s 21 1. 6 v - s 21 1.8 v - s 21 2.0 v - s 21 3.0 v - s 21 4.0 v - s 21 5.0 v - s 21 figure 5. output return loss vs frequency over control voltage 20355 6 -014 30 35 40 45 50 55 6 0 12345 iip3 (dbm) v c trl (v) 100 mhz 700 mhz 1500 mhz figure 7. iip3 vs vctrl over frequency (1 mhz tone spacing,+22 dbm/tone) 20355 6 -004 C45 C40 C35 C30 C25 C20 C15 C10 C5 0 0 0.1 0.2 0.3 0.4 0.5 0. 6 0.7 0.8 0. 9 1.0 1.1 1.2 1.3 1.4 1.5 1. 6 1.7 1.8 1. 9 2.0 output return lo ss frequency ( g hz) 1.0 v - s 22 1.2 v - s 22 1.4 v - s 22 1. 6 v - s 22 1.8 v - s 22 2.0 v - s 22 3.0 v - s 22 4.0 v - s 22 5.0 v - s 22 figure 4. input return loss vs frequency over control voltage 20355 6 -00 6 C45 C40 C35 C30 C25 C20 C15 C10 C5 0 C3.00e-0 6 C1.00e-0 6 1.00e-0 6 3.00e-0 6 5.00e-0 6 7.00e-0 69 .00e-0 6 1.10e-05 time ( s ) p out (dbm) note: settling time ?.2 db from ?al settled value. ts = 8 u s t s = 8.4 u s t s = 4.7 u s t s = 0. 9 7 u s 1 to 5 v 2 to 5 v 3 to 5 v 4 to 5 v figure 6. settling time Cfalling edge (f = 700 mhz, rep rate = 50 khz, duty cyle = 50%, 25 c) 20355 6 -015 30 35 40 45 100 300 500 700 9 00 1100 1300 1500 ip1db (dbm) frequency (mhz) figure 8. ip1db vs frequency
data sheet ? SKY12239-11: voltage -controlled variable attenuator skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 203556b ? skyworks proprietary information ? products and pr oduct information are subject to change without notice ? feb ruary 9, 2017 5 evaluation board description the SKY12239-11 evaluation board is used to test the performance of the SKY12239-11 variable attenuator. a schematic of the evaluation board is shown in figure 9. table 4 lists the bill of materials. an assembly drawing for the evaluation board is shown in figure 10. the evaluation board layer detail is shown in figure 11. the attenuation level of the SKY12239-11 is controlled by applying 1 to 5 v to the v_control pins. rf_in (rf c 1) rf_out (rf c 2) g nd paddle u1 s ky1223 9 -11 6 13 2 5 4 v_ c ontrol v_ s upply l_out l_in + C + C +1.0 to +5.0 v +2.7 v d c h1 (pin 2) d c h1 (pin 5) r1 20355 6 -007 rf_in rf_out figure 9. SKY12239-11 evaluation board schematic table 4. SKY12239-11 evaluation board bill of materials (bom) component description value size manufacturer part number r1 resistor 0 0402 kamaya -
data sheet ? SKY12239-11: voltage -controlled variable attenuator skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 6 february 9, 2017 ? skyworks proprietary information ? products a nd product information are subj ect to change without noti ce ? 203556b 20355 6 -008 l1 is a dni component figure 10. SKY12239-11 evaluation board assembly diagram c ross section n a me thickness (in) m a teri a l top s older ma s k l1 (0.0007) fini s hed c opper thickne ss dielectric 0.010 roger s ro4350 c ore l2 (0.0007) fini s hed c opper thickne ss dielectric (note 1) fr4 prepreg l3 (0.0007) fini s hed c opper thickne ss bottom s older ma s k note 1: adjust this thickness to meet total thickness goal of 0.062 ?0.005 inch. 20355 6 -00 9 figure 11. layer detail physical characteristics
data sheet ? SKY12239-11: voltage -controlled variable attenuator skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 203556b ? skyworks proprietary information ? products and pr oduct information are subject to change without notice ? feb ruary 9, 2017 7 package dimensions the pcb layout footprint for the SKY12239-11 is shown in figure 12. typical part markings are shown in figure 13. package dimensions are shown in figure 14, and tape and reel dimensions are provided in figure 15. package and handling information since the device package is sensitive to moisture absorption, it is baked and vacuum packed before shipping. instructions on the shipping container label regarding exposure to moisture after the container seal is broken must be followed. otherwise, problems related to moisture absorption may occur when the part is subjected to high temperature during solder assembly. the SKY12239-11 is rated to moisture sensitivity level 3 (msl3) at 260 ? c. it can be used for lead or lead-free soldering. for additional information, refer to the skyworks application note, pcb design & smt assembly/rework guidelines for mcm-l packages , document number 101752. care must be taken when attaching this product, whether it is done manually or in a production solder reflow environment. production quantities of this product are shipped in a standard tape and reel format. 4.1 mm 4.1 mm 6 x 0.4 mm 2x 1.8 mm s tencil aperture s ize of 80 to 100% of the module/package s older ma s k opening s pin 1 indicator 0.40 x 0.40 pin 1 0.7 mm pitch 4.2 mm 2x 1. 9 mm s tencil aperture (top view) package outline package outline thermal via array ? 0.3 mm on 0. 6 mm pitch improve s thermal performance metallization (top view) s older ma s k opening (top view) notes: 1. thermal vias should be resin ?led and capped in accordance with ipc-4761 type vii vias. 2. recommended cu thickness is 30 to 35 m. 2x 1.8 mm pin 6 4.1 mm 4.1 mm pin 1 pin 6 0.7 mm pitch 0.25 mm typ package outline 4.2 mm pin 1 pin 6 6 x 0. 6 5 mm pin 1 indicator 0.40 x 0.40 6 x 0.4 mm 6 x 0. 6 5 mm opening s ize of 6 0 to 100% of the expo s ed center opening s hown 0.7 mm pitch 6 x 0.5 mm 2x 1. 9 mm 6 x 0.75 mm 20355 6 -010 figure 12. SKY12239-11 pcb layout footprint
data sheet ? SKY12239-11: voltage -controlled variable attenuator skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 8 february 9, 2017 ? skyworks proprietary information ? products a nd product information are subj ect to change without noti ce ? 203556b pin 1 indicator 12239-11 xxxxxx.xx yymm cc s kywork s part number lot number yy = c alendar year mm = month package s ealed cc = c ountry c ode 20355 6 -011 figure 13. typical part markings (top view) top s older ma s k opening b 0.2 a b c 6 x s mt pad s ide view pin 1 0.47 0.1 8x 1.8 c (0.28) pin 1 indicator s older ma s k edge detail a pad full s cale 1 x thi s rotation notes: 1. dimensions and tolerances in accordance with asme y14.5m-1994. 2. a ll measurements are in millimeters. s ee detail b 0 detail c pad s cale: 2x 1x thi s rotation 1x rotated 180o 1x rotated 9 0o c w 3x rotated 9 0o cc w 0.1 a b c top view bottom view 4x (1.8) 2.25 2x 0. 6 75 metal edge s c 3.8 3.8 1 0.1 0.075 a b c pin 1 indicator 2x 0.7 0.1 a 0 6 x 1.8 pin 6 (0. 9 8) 2x (1.18) 4x 1.375 2x (1.8) 2x (1.18) 0.85 2x 1.375 2x 0.85 13x r0.05 max 0.40 x 45o 4x (1. 9 ) 2.4 2x 0.7 s older ma s k edge s 2x (1.1) 4x 1.4 2x (1. 9 ) 2x (1.1) 1 2x 1.4 2x 1 12x r0.05 max detail b pad full s cale 1 x thi s rotation (0.1) 0.4 0.05 0.4 0.05 0.54 0.05 metal pad edge s ee detail a 20355 6 -012 figure 14. SKY12239-11 package dimensions
data sheet ? SKY12239-11: voltage -controlled variable attenuator skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 203556b ? skyworks proprietary information ? products and pr oduct information are subject to change without notice ? feb ruary 9, 2017 9 ?1.5 + 0.1/C 0.0 2.00 0.05 (note 2) 1.20 (ko) 4.00 (note 1) ?1.50 min 8.00 1.75 0.10 1.20 0.3 pin 1 detail a a a 4.20 (ao) 4.20 (bo) 0.30 0.05 r 0.30 max r 0.5 typ 5.50 0.05 (note 2) notes: 1. 10-sprocket hole pitch cumulative tolerance: 0.2 mm. 2. pocket position relative to sprocket hole measured as true position of pocket, not pocket hole. 3. ao and bo are calculated on a plane at a distance ? above the bottom of the pocket. 4. all dimensions are in millimeters. 20355 6 -013 figure 15. SKY12239-11 tape and reel dimensions
data sheet ? SKY12239-11: voltage -controlled variable attenuator skyworks solutions, inc. ? phone [ 781] 376-3000 ? fax [781] 376-3100 ? sales@ skyworksinc.com ? www.skyworksinc.com 10 february 9, 2017 ? skyworks proprietary information ? products a nd product information are subj ect to change without not ice ? 203556b ordering information model name manufacturing part number evaluation board part number SKY12239-11: voltage-controlled variab le attenuator SKY12239-11 SKY12239-11-evb copyright ? 2016-2017 skyworks solutions, inc. all rights reserved. information in this document is provided in connection with skyw orks solutions, inc. (skyworks) products or services. these m aterials, including the information co ntained herein, are provided by skyworks as a service to its customers and may be used for info rmational purposes only by the cu stomer. skyworks assumes no res ponsibility for errors or omissions in these materials or the information contained herein. skyworks may change its documentat ion, products, services, specific ations or product descriptions at any time, without notice. skyworks makes no commitment to update the materials or information and shall have no responsi bility whatsoever for conflicts, incompatibilities, or other diff iculties arising from any future changes. no license, whether express, implied, by es toppel or otherwise, is granted to any in tellectual property rights by this document . skyworks assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, re production or use of skyworks products, information or mate rials, except as may be provided in skyworks terms and conditions of sale. the materials, products and information are pr ovided as is without warranty of any ki nd, whether express, implied, statutory, or otherwise, including fitness for a particular purpose or use, merch antability, performance, quality or non-infringe ment of any intellectual property right; all su ch warranties are hereby expressly disclaimed. skyworks does not warrant the accura cy or completeness of the information, text, graphics or other items contained within these ma terials. skyworks shall not be liable for any damages, including but not limited to any special, indirect, incidental, statutory, or consequentia l damages, including without limitation, lost revenues or lost profits that may result from the use of the materials or information, wheth er or not the recipient of mat erials has been advised of the possibility of such damage. skyworks products are no t intended for use in medical, lifesaving or life-su staining applications, or other equipment in which the failure of the skyworks products could lead to personal injury, death, physical or environmental damage. skyw orks customers using or selli ng skyworks products for use 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 us ing skyworks products , which may deviate from published specifi cations as a result of design de fects, errors, or operation of products outside of published pa rameters or design specifications. customers sh ould include design and operating safeguards to minimize these and other risks. skyworks assumes no liability for applications assistance, customer product de sign, or damage to any equipment resulting from the use of skyw orks products outsid e of stated published specifications or parameters. skyworks and the skyworks symbol are trademarks or registered trad emarks of skyworks solutions, inc., in the united states and other countries. third-party brands and names are for identification purposes only, and are the pr operty of their respective owners. additi onal information, including relevant terms and conditions, posted at www.skyw orksinc.com, are incorporated by reference.
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