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rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1606 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . rf micro devices ? and rfmd ? are trademarks of rfmd, llc. bluetooth is a trademark owned by bluetooth sig, inc., u.s.a. and licensed for use by rfmd. all other trade names, trademarks, and registered trademarks are the property of their respective owners. ?2013, rf micro devices, inc. 1 of 18 rfsa3043 75? voltage controlled attenuator 5mhz to 3 000mhz rfmds rfsa3043 is a fully monolithic analog voltage controlled attenuator (vca) featuring exceptional linearity over a typical temperature compensated 30db gain control range. it incorporates a revolutionary new circuit architecture to solve a long standi ng industry problem: high ip3, high attenuation range, low dc current, broad bandwidth and temperature compensated linear in db control voltage characteristic. this voltage controlled attenuator is controlled by a single positive control voltage with on - ch ip dc conditioning circuitry. the slope of the control voltage versus gain is selectable. the rfsa3043 draws a very low 2 ma current and is packaged in a small 3mm x 3mm qfn. this attenuator is matched to 75 ? over its rated control range and frequency with no external matching components required. typical vcas in this performance category have poor inherent attenuation versus temperature and poor nonlinear attenuation versus control voltage characteristics. to correct these short - comings, other vcas require extensive off chip analog support circuitry that consumes valuable pcb area and additional dc power. this game changing product incorporates the complete solution in a small 3mm x 3mm qfn package that reduces the footprint 20x in area and reduces the dc po wer by 5 x over conventional pin diode approaches. functional block diagram ordering information rfsa3043 sq sample b ag with 25 pieces rfsa3043 sr 7" reel with 100 pieces rfsa3043 tr7 7 " reel with 2500 pieces rfsa3043 pck - 410 5mhz to 3000mhz pcba with 5 - piece sample bag package: q fn, 16 - pin, 3.0mm x 3 .0mm features patent pending circuit architecture broadband 5mhz to 3000mhz frequency range 30db attenuation range +50dbm input ip3 typical +80dbm input ip2 typical low distortion - 80 dbc cso and - 7 5 dbc ctb for 1 32 channel 3 8 dbmv input high 1db compression point > +30dbm low supply current 2 ma typical 3v to 5v power supply linear in db control characteristic internal temperature compensation class 2 esd ( 2 000v) complete solution in a small 3mm x 3mm, qfn package applications cable modems catv high linearity power control rfsa3043
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1606 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . rf micro devices ? and rfmd ? are trademarks of rfmd, llc. bluetooth is a trademark owned by bluetooth sig, inc., u.s.a. and licensed for use by rfmd. all other trade names, trademarks, and registered trademarks are the property of their respective owners. ?2013, rf micro devices, inc. 2 of 18 absolute maximum rat ings parameter rating unit control voltage (v c ) - 0.5 to +6 v supply voltage (v dd ) - 0.5 to +6 v mode pin voltage (mode) - 0.5 to +6 v rf input power +30 dbm storage temperature range - 65 to +150 c esd rating - human body model (hbm) 2 000 (class 2) v moisture sensitivity level msl1 caution! esd sensitive device. rfmd green: rohs status based on eu directive 2011/65/eu (at time of this document revision) , halogen free per iec 61249 - 2 - 21, < 1000ppm each of antimony trioxide in polymeric materials and red phosphorus as a flame retardant, and <2% antimony in solder. exceeding any one or a combination of the absolute maximum rating conditions may cause permanent damage to the device. extended application of absolute maximum rating conditions to the device may reduce device reliability. specified typical performance or functional operation of the device under absolute maximum rating conditions is not implied. recommended operating condition parameter specification unit min typ max operating temperature range (rf input power handling de - rates above 85 c) - 40 +105 c operating junction temperature +125 c supply voltage 3 5 5.5 v nominal operating parameters parameter specification unit condition min typ max general performance supply current 2 ma thermal resistance 35 c/w rf input must be rfin pin rf input power 27 dbm rf performance frequency range 5 3000 mhz minimum insertion loss 1.5 2.5 db gain control range 30 35 db gain versus temperature 1.5 db peak to peak gain variation over temperature for fixed control voltage return loss 15 db relative phase 5 deg insertion phase at 15db attenuation relative to minimum attenuation input 1db compression point 30 dbm input ip3 50 dbm p in + (im3 dbc /2) input ip2 80 dbm p in + im2 dbc , im2 is f1 + f2 input ih2 85 dbm p in + h2 dbc , h2 is second harmonic
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 3 of 18 rfsa3043 parameter specification unit condition min typ max input ih3 55 dbm p in + (h3 dbc /2), h3 is third harmonic composite performance v dd = 5v, v c = 3.5v, temp = +25 c cso - 80 dbc 55.25mhz to 865.25mhz, 132 channel, +38dbmv input flat tilt ctb - 75 dbc xmod - 70 dbc control voltage control range, positive attenuation slope 0 5 v 5v control voltage is lowest insertion loss, mode pin high voltage control range, negative attenuation slope 0 5 v 0v control voltage is lowest insertion loss, mode pin low voltage control pin current (mode high) 37 a vc pin at 5v voltage control pin current (mode low) 37 a vc pin at 5v mode pin logic low 0.4 v mode pin logic high 1 v settling time 10 sec 1db attenuation change settling with 0.1db note: typical performance conditions unless otherwise specified: +25 c, 1000mhz, 5v supply voltage
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 4 of 18 rfsa3043 typical performance: 5mhz to 1200mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 5 of 18 rfsa3043 typical performance: 5mhz to 1200mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 6 of 18 rfsa3043 typical performance: 5mhz to 1200mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 7 of 18 rfsa3043 typical performance: 5mhz to 1200mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 8 of 18 rfsa3043 typical performance: 5mhz to 1200mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 9 of 18 rfsa3043 typical application schematic 5mhz to 12 00mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 10 of 18 rfsa3043 typical performance: 5mhz to 3000mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 11 of 18 rfsa3043 typical performance: 5mhz to 3000mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 12 of 18 rfsa3043 typical performance: 5mhz to 3000mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 13 of 18 rfsa3043 typical performance: 5mhz to 3000mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 14 of 18 rfsa3043 typical application schematic 5mhz to 30 00mhz application circuit evaluation board bill of materials (bom) 5m hz to 12 00mhz application circuit description reference designator manufacturer manufacturer's p/n voltage controlled attenuator, vca, 5v u1 rfmd rfsa3043 conn, f fem edge mount, 75 , 0.065 j1 - j4 genesis technology usa gt20 - 300204 conn, hdr, st, 4 - pin, 0.100 p1 samtec, inc. tsw - 104 - 08 - s - s sa3043 - 410 evaluation board ddi sa3043 - 410( b ) cap, 1000pf, 10%, 25v, x7r, 0402 c3 murata electronics grm155r71h102ka01d cap, 1 f, 10%, 16v, x7r, 1206 c4 murata electronics grm31mr71e105kc01l res, 0 , 0402 kamaya l1 - l2 kamaya, inc. rmc1/16sjpth dnp c1 - c2, c5 n/a n/a
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 15 of 18 rfsa3043 evaluation board assembly drawing
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 16 of 18 rfsa3043 evaluation board schematic 5mhz to 12 00mhz application circuit
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 17 of 18 rfsa3043 pin names and descriptions pin name description 1 gnd ground pin 2 gnd ground pin 3 rfin rf input; use external dc block, rf input must be this pin to insure linearity and thermal resistance specifications 4 gnd ground pin 5 gnd ground pin 6 gnd ground pin 7 gnd ground pin 8 gnd ground pin 9 gnd ground pin 10 rfout rf output, use external dc block, rf output must be this pin to insure linearity and thermal resistance specifications 11 gnd ground pin 12 gnd ground pin 13 gnd ground pin 14 vc attenuator control voltage 15 vdd supply voltage 16 mode attenuation slope control set to logic low to enable negative attenuation slope set to logic high to enable positive attenuation slope
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds 1406 1 9 for sales or technical support, contact rfmd at +1.336.678.5570 or customerservice@rfmd.com . the information in this publication is believed to be accurate. however, no responsibility is assumed by rf micro d evices, inc. ("rfmd") for its use, nor for any infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or patent rights of rfmd. rfmd reserves the right to change c omponent circuitry, recommended application circuitry and specifications at any time without prior notice. 18 of 18 rfsa3043 package outline drawing (dimensions in millimeters) branding diagram

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