rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds15010 7 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 10 rffm 8850p dualband 2 .4 ghz and 5 .0 ghz 802.11b/g/n/ a/ ac wi -fi ? switch + lna front end module the rffm 8850p provides a complete dualband integrated switch + lna solution in a single front end module (fem) for wi - fi ? 802.11b/g/n/ a/ ac and bluetooth ? systems. t he ultra - small form factor and integrated matching greatly reduces the number of external components and layout area . the rffm 8850p integr ates a 2.4ghz sp3t transmit/receive switch , a 5.0ghz sp2t transmit/receive switch, a 2.4 ghz low noise amp lifier with b ypass mode , and a 5.0ghz low noise amplifier with bypass mode . functional block diagram ordering information rffm 8850p sb standard 5 - piece sample bag rffm 8850p sq standard 25 - piece sample bag rffm 8850p sr standard 100 - piece ree l rffm 8850p tr7 standard 2500 - piece reel rffm 8850p pck - 410 fully assembled evaluation board w/ 5 - piece bag package: q fn, 16 - pin, 2.3mm x 2.3 mm x 0.33 mm features dualband 2.4ghz & 5.0ghz wi - fi ? sw+lna fem 2.4ghz sp3t t/r switch with bluetooth ? support 2 .4ghz lna with bypass mode 5.0ghz sp2t t/r switch 5.0ghz lna with bypass mode all input and output ports matched to 50? wide voltage supply range supports wi - fi ? chipsets with integrated power amplifier (ipa) small package for chip on board designs low pro file package for module designs applications mobile devices smartphones cellular handsets tablets consumer electronics gaming netbooks/notebooks tv/monitors/vide o rffm 8850p 1 2 3 4 12 11 10 9 5 6 7 8 16 15 14 13 vtx 5 vrx 5 rx 5 lna _ en 5 vdd 5 tx 5 tx 2 rx 2 lna _ en 2 vdd 2 bt vbt ant 5 vtx 2 nc ant 2
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds15010 7 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 10 absolute maximum rat ings parameter rating unit dc supply voltage (no rf applied) 6 v d c supply current 100 ma operating case temperature - 40 to +85 c storage temperature - 40 to +150 c maximum tx input power into 50? load for 11b/g/n/ac (no damage) 2.4ghz and 5.0ghz +30 dbm maximum rx input power (no damage) + 1 2 dbm bypass mode maximum rx input power (no damage) +2 5 dbm moisture sensitivity msl2 caution! esd sensitive d evice. 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 perf ormance or functional operation of the device under absolute maximum rating conditions is not implied. n ominal operating parameters parameter specification unit condition min typ max general specifications operating frequency 2.412 2.484 ghz 2.4ghz band operating frequency 5.18 5.825 ghz 5.0ghz band extended frequency 4.9 5.925 ghz 5.0ghz band operating temperature - 40 25 85 c power supply - vdd2 , vdd 5 3. 0 3.6 5.0 v 2g control voltage - high 2.8 3.1 vdd2 v vtx 2 , lna - en 2 , and vbt s hould not exceed vdd2 2g control voltage - low 0 0. 2 v 5g control voltage - high 2.8 3.1 vdd5 v vtx 5, lna - en 5, and vrx5 s hould not exceed vdd5 5g control voltage - low 0 0. 2 v esd ? human body model 1000 v esd ? charge device model 1000 v transmit (tx 2 - ant 2 ) 2.4ghz band, v dd2 = 3.6v , unless otherwise noted insertion loss 0.6 1.2 db t = 25c, v dd 2 = 3.6v tx port return loss 12 20 db ant port return loss 12 20 db nominal input p 0. 1db 27 30 dbm t = 25c, v dd 2 = 3.6v ant - rx isolation 28 3 5 db tx mode enabled and at maximum power receive (ant 2 -rx 2 )- lna on 2.4ghz band, v dd 2 = 3.6v , unless otherwise noted gain (s21) 1 2 1 4 1 7 db t = 25c, v dd 2 = 3.6v 1 1 1 4 1 8 db t = - 40 to +85 c , v dd 2 = 3.0 v to 5v gain flatness over any 20mhz bw - 1 + 1 db gain flatness across band - 1 + 1 db noise figure - nominal 1.8 2. 2 2.7 db t = 25c, v dd 2 = 3.6v noise fi gure 1.3 2.5 3. 1 db t = - 40 to +85 c, v dd 2 = 3.0 to 5.0 v , f = 2400 - 2500mhz rx 2 port return loss 10 15 25 db ant 2 port return loss - no minal 5 8 10 db t = 25c, v dd 2 = 3.6v ant 2 port return loss 4 7.5 12 db all conditions input p1db - nominal - 8 - 6. 5 dbm t = 25c, v dd 2 = 3.6v current consumption - nominal 6 9 13 ma t = 25c, v dd 2 = 3.6v
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds150107 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 devices, in c. ("rfmd") for its use, nor for any infringement of patents or o ther 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 component circuitry, recommended application circuitry and specifications at any time without prior notice. 3 of 10 rffm 8850p parameter specification unit condition min typ max receive (ant2 - rx2) - lna on 2.4ghz band, v dd2 = 3.6v , unless otherwise noted lna_en 2 control current 50 1 00 a lna turn on time 200 500 ns receive (ant2 - rx2) - lna bypass mode 2.4ghz band, v dd2 = 3.6v, unless otherwise noted insertion loss - nominal 4 5 7 db t= 25c, v dd 2 = 3.6v rx port ret urn loss - nominal 1 0 12 2 0 db ant port return loss - nominal 1 0 15 2 0 db input p1db +17 + 21 dbm bluetooth tx/rx mode 2.4ghz band, v dd2 = 3.6 , unless otherwise noted input p 0. 1db + 2 4 +2 8 +32 dbm t = 25c, v dd2 = 3.6v insertion loss 0 .3 0.6 1 .3 db bt port return loss 12 18 db ant 2 port return loss 12 18 db control line specifications 2.4ghz band, v dd2 = 3.6 , unless otherwise noted control line impedance ? vtx 2 40 m? control line impedance ? lna en 2 66 k? control line impedance - vbt 40 m? leakage current ? vdd2 0.2 10 a 2g switch control current - high - each line 5 100 a 2g switch control current - low - each line 0.5 1 a switching speed 100 500 ns transmit (tx5 - ant5) 5.0ghz band, v dd5 = 3.6v , unless otherwise noted insertion loss - nominal 0.2 0.8 1. 8 db t = 25c, v dd 5 = 3.6v tx 5 port return loss - nominal 12 25 db ant 5 port return loss - nominal 12 25 db input p 0. 1db - nominal 2 8 30 31.5 dbm t = 25c, v dd 5 = 3.6v max linear input power (<1% evm) - nominal 20 23 25 dbm t = 25c, v dd5 = 3.6v max linear input power (<1% evm) - over vt 19 21 25 dbm all conditions ant 5 - rx 5 isolation 28 35 db tx mode enabled and at maximum power rece ive (ant5 - rx5) - lna on 5.0ghz band, v dd5 = 3.6 v , unless otherwise noted gai n - nominal 10 14 1 5 db t = 25c, v dd 5 = 3.6v gain 9 13 18 db all conditions gain flatness over any 80mhz bw - 0.5 +0. 5 db gain flatness across band - 1 +1 db t = 25c, v d d 5 = 3.6v noise figure - nominal 2.3 3 db noise figure 2.5 3.5 t = - 40 to +85 c, v dd 5 = 3.0 to 5.0 v rx 5 port return loss - nominal 8 12 db ant 5 port return loss - nominal 5 8 db nominal input p1db - 7.5 - 5 dbm t= 25c, v dd5 = 3.6v current consu mption 6 1 0 1 3 ma lna _ en 5 control current 50 14 0 20 0 a lna turn on time 400 600 ns
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds150107 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 devices, in c. ("rfmd") for its use, nor for any infringement of patents or o ther 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 component circuitry, recommended application circuitry and specifications at any time without prior notice. 4 of 10 rffm 8850p parameter specification unit condition min typ max receive (ant5 - rx5) - bypass mode 5.0ghz band, v dd5 = 3.6 v , unless otherwise noted insertion loss - nominal 5 7 12 db t = 25c, v dd5 = 3.6v rx 5 port return loss 1 0 1 5 db ant 5 port return loss 12 20 db input p1db +18 +21 dbm t = 25c, v dd5 = 3.6v control line specifications 5.0ghz band, v dd5 = 3.6 v , unless otherwise noted vdd5 leakage current - nominal 0 0.2 10 ua control line impedance ? vtx 5 40 m? control line impedance ? lna _ en 5 66 k? control line impedance ? vrx 5 40 m? leakage current ? vdd5 0.2 10 a 5g switch control current ? high - each line 5 1 0 0 a 5g switch control current ? low - each line 0. 5 1 a t = 25c, v dd5 = 3.6v switching speed 100 5 00 ns isolation v dd2 = 3.6 v and v dd5 = 3.6 v , unless otherwise noted ant5 to rx5 25 db ant2 to rx2 25 db ant5 to ant2 40 db switch control logic truth table operating mode vtx 2 lnaen 2 vbt vtx5 lnaen5 vrx5 802.11 b/g/n rx bypass - standby low low low 802.11b/g/n tx2 mode high low low 802.11b/g/n rx 2 gain mode low high low bt tx low low high 5 .0 ghz standby mode low low low 802.11a/n/ac tx 5 mode high low low 802.11a/n/ac rx 5 gain mode low high high 802.11a/n/ac rx 5 bypass mode low low high note: 2g: high = 2.8 to v dd2 , low = 0v to 0.2v, and 5g: high = 2.8 to v dd5 , low = 0v to 0.2v.
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds150107 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 devices, in c. ("rfmd") for its use, nor for any infringement of patents or o ther 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 component circuitry, recommended application circuitry and specifications at any time without prior notice. 5 of 10 rffm 8850p timing diagram 2.4ghz control
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds150107 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 devices, in c. ("rfmd") for its use, nor for any infringement of patents or o ther 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 component circuitry, recommended application circuitry and specifications at any time without prior notice. 6 of 10 rffm 8850p timing diagram 5.0ghz control
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds150107 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 devices, in c. ("rfmd") for its use, nor for any infringement of patents or o ther 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 component circuitry, recommended application circuitry and specifications at any time without prior notice. 7 of 10 rffm 8850p applications schematic * note if pin 11 (bt) is not used then that port should be left open. rffm 8850p
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds150107 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 devices, in c. ("rfmd") for its use, nor for any infringement of patents or o ther 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 component circuitry, recommended application circuitry and specifications at any time without prior notice. 8 of 10 rffm 8850p pin out package drawing 1 2 3 4 12 11 10 9 5 6 7 8 16 15 14 13 vtx5 vrx5 rx5 lna_en5 vdd5 tx5 tx2 rx2 lna_en2 vdd2 bt vbt ant5 vtx2 nc ant2
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds150107 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 devices, in c. ("rfmd") for its use, nor for any infringement of patents or o ther 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 component circuitry, recommended application circuitry and specifications at any time without prior notice. 9 of 10 rffm 8850p pcb patterns note: thermal vias for center slug ?c? should be incorporated into the pcb design. the number and size of thermal vias will dep end on the application, power, dissipation and electrical requirements. example of the number and size of vias can be found on the rfmd evaluation b oard layout (gerber files are available upon request)
rf micro devices inc . 7628 thorndike road, greensboro, nc 27409 - 9421 ds150107 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 devices, in c. ("rfmd") for its use, nor for any infringement of patents or o ther 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 component circuitry, recommended application circuitry and specifications at any time without prior notice. 10 of 10 rffm 8850p pin names and descriptions pin name description 1 vtx5 5 ghz tx switch control voltage. refer to logic table for proper settings 2 vrx5 5 ghz rx switch control voltage. refer to logic table for proper settings 3 rx5 rf output port for the 5 ghz lna. this port is matched to 50 ? and dc blocked internally 4 lna _ en5 5 ghz lna enable voltage. refer to logic table for proper settings 5 vdd 5 supply voltage for the 5 ghz lna. see applications schematic for biasing and bypassing components. 6 tx5 rf input port for the tx throw of the 5 ghz t/r switch. an external dc block is required 7 tx2 rf input port for the tx throw of the 2.4 ghz t/r switch. an external dc block is required 8 rx2 rf output port for the 2.4 ghz lna. this port is matched to 50 ? and dc blocked internally 9 l na _ en2 2.4 ghz lna enable voltage. refer to logic table for proper settings 10 vdd 2 supply voltage for the 2.4 ghz lna. see applications schematic for biasing and bypassing components. 11 bt rf bidirectional port for bluetooth?. input is matched to 50 ? . an external dc block is required 12 vbt bluetooth? switch control pin. see truth table for proper level. 13 ant2 * + ] 5 ) e l g l u h f w l r q d o d q w h q q d s r u w p d w f k h g w r ? $ q h [ w h u q d o ' & e o r f n l v u h t x l u h g 14 vtx2 2.4 ghz tx switch control voltage. ref er to logic table for proper settings 15 nc this pin is not connected internally and can be left floating or connected to ground. 16 ant5 * + ] 5 ) e l g l u h f w l r q d o d q w h q q d s r u w p d w f k h g w r ? $ q h [ w h u q d o ' & e o r f n l v u h t x l u h g pkg base gnd ground conn ection. the backside of the package should be connected to the ground plane through a short path, i.e., pcb vias under the device are recommended. *note if pin 11 (bt) is not used then that port should be left open.
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