1 of 8 optimum technology matching? applied gaas hbt ingap hbt gaas mesfet sige bicmos si bicmos sige hbt gaas phemt si cmos si bjt gan hemt functional block diagram rf micro devices?, rfmd?, optimum technology matching?, enabling wireless connectivity?, powerstar?, polaris? total radio? and ultimateblue? are trademarks of rfmd, llc. bluetooth is a trade- mark owned by bluetooth sig, inc., u.s.a. and licensed for use by rfmd. all other trade names, trademarks and registered tradem arks are the property of their respective owners. ?2012, rf micro devices, inc. product description 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . ordering information rf mems ldmos tx pa_en nc vcc c_rx ant bt nc nc rx 3 1 nc vcc nc 12 c_bt 2 13 11 10 9 8 7 6 5 4 14 15 16 vcc pdet rffm8204 2.4ghz to 2.5ghz 802.11b/g/n wifi front end module the rffm8204 provides a complete inte grated solution in a single front end module (fem) for wifi 802.11b/g/n and bluetooth ? systems. the ultrasmall form factor and integrated matching greatly reduces the num- ber of external components and layout area in the customer application. this simplifies the total front end soluti on by reducing the bill of materials, system footprint, and manufacturabil ity cost. the rffm8204 integrates a 2.4ghz power amplifier (pa), power detector coupler for improved accu- racy, sp3t switch, and some filtering for harmonic rejection. the device is provided in 2.5mm x 2.5mm x 0.45mm 16-pin qfn package. this module meets or exceeds the rf front end needs of ieee 802.11b/g/n wifi rf systems. features ? p out = 19dbm 11g ofdm 2.5% evm ? p out = 21dbm meeting 11b spec mask ? input and output matched to 50 ??? high level of integra- tion ? supports wide voltage sup- ply range (3.0v to 4.8v) ? low height package applications ? cellular handsets ? mobile devices ? tablets ? consumer electronics ? gaming ? netbooks/notebooks ? tv/monitors/video ? smart energy RFFM8204SB standard 5-piece sample bag rffm8204sq standard 25-piece sample bag rffm8204sr standard 100-piece reel rffm8204tr7 standard 2500-piece reel rffm8204pck-410 fully assembled evaluation board with 5-piece bag ds120625 ? ? package style: qfn, 16-pin, 2.5mmx2.5mmx0.45mm
2 of 8 rffm8204 ds120625 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . absolute maximum ratings parameter rating unit dc supply voltage (no rf applied) 6 v dc supply current 500 ma operating case temperature -40 to +85 c storage temperature -40 to +150 c maximum tx input power +10 dbm maximum rx input power +5 dbm moisture sensitivity msl1 parameter specification condition min. typ. max. unit parameter operating frequency 2.412 2.442 2.484 ghz operating temperature -10 +25 +70 oc extended operating temperature -40 +25 +85 oc functional with derated performance storage temperature -40 +25 150 oc power supply v cc 3.3 3.7 4.35 v recommended operating voltage range extended v cc 3 3.7 4.8 v functional with derated performance control voltage-high 2.8 3.7 v cc v pa_en, cr_x, c_bt control voltage-low 0 0.2 v transmit (tx-ant) t = -10oc to +70oc; v cc = 3.3v to 4.35v; pa_en = high, cr_x = c_bt = low; 50% duty cycle; frequency = 2.412ghz to 2.484ghz, measured with a standard ieee802.11g waveform unless otherwise noted. dynamic evm - nominal 2.5 3 % t = 25oc, v cc = 3.3v, p out = 19dbm dynamic evm 2.5 3 % p out = 18dbm output power meeting spectral mask 21 22 dbm 11 mbps cck, +/- 11mhz offset from carrier tx port return loss (s11) -10 -8 db 50 ? characteristic impedance ant port return loss -12 -10 db nominal gain 23 24 27 db t = 25oc, v cc = 3.3v gain 22 24 28 db gain flatness - 20 mhz channel -0.5 0.5 db gain flatness - 40 mhz channel -0.75 0.75 db gain flatness - 100 mhz band -1 1 db out of band rejection 4 7 dbc 2110 mhz to 2170mhz, t = 25oc, v cc = 3.3v, frequency = 2.412ghz operating current 185 210 ma p out = 18dbm quiescent current 135 160 ma pa_enable current 30 50 ? a leakage current 1 10 ? av cc = 4.8v, rf off second harmonic -23 -18 dbm/mhz 4.80ghz to 5.00ghz third harmonic -50 -41 dbm/mhz 7.20ghz to 7.50ghz power detector voltage 0.1 0.15 0.2 v p out = 0dbm power detector voltage 1.0 1.25 1.5 v p out = 22dbm p detect variation from 0-360 load pull -1.5 1.5 db 3:1 vswr caution! esd sensitive device. exceeding any one or a combination of the absolute maximum rating conditions may cause permanent damage to the device. ex tended application of absolute maximum rating conditions to the device may reduce device reliability. specified typical perfor- mance or functional operation of the devi ce under absolute maximum rating condi- tions is not implied. the information in this publication is believed to be accurate and reliable. however, no responsibility is assumed by rf micro devices, 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 component circuitry, recommended appli- cation circuitry and specifications at any time without prior notice. rfmd green: rohs compliant per eu directive 2002/95/ec, halogen free per iec 61249-2-21, < 1000ppm each of antimony trioxide in polymeric materials and red phosphorus as a fl ame retardant, and <2% antimony in solder.
3 of 8 rffm8204 ds120625 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . switch control logic truth table parameter specification condition min. typ. max. unit receive (ant-rx) t = -10oc to +70oc; v cc = 3.3v to 4.35v; pa_en = low, cr_x = high, c_bt = low; frequency = 2.412ghz to 2.484ghz, measured with a cw waveform unless otherwise noted. insertion loss (s21) -1.1 -0.6 -0.3 db rx port return loss -20 -15 db ant port return loss -20 -15 db bluetooth tx/rx input / output power 20 dbm insertion loss -1.1 -0.6 -0.3 db bt port return loss -20 -15 db ant port return loss -20 -15 db isolation ant-bt; tx mode -20 -18 db ant-bt; rx gain mode -20 -18 db ant-rx; tx mode -25 -20 db ant-rx; bt mode -20 -18 db general specifications switch control current - high - each line 560 ? a switch control current - low - each line 0.5 10 ? a switching speed 100 150 ns esd 1000 v pa turn on/off time 200 500 ns output stable to within 90% of final gain maximum input power +5 dbm into 50 ? ruggedness 10:1 no damage operating mode pa_en c_rx c_bt standby low low low 802.11b/g/n tx high low low 802.11b/g/n rx mode low high low bt rx/tx low low high note: pa_en and tx switch control are tied together internally
4 of 8 rffm8204 ds120625 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . * it is recommended to ground all nc pins. pin out pin function description 1pdet power detector voltage for the tx path. may need external series r/shunt c to adjust voltage level and to filter rf noise. 2nc* no connect. this pin is not connected internally and can be left floating or connected to ground. 3vcc supply voltage for the output stage of the pa. see appl ications schematic for biasing and bypassing components. 4vcc supply voltage for the first stage of the pa. see applic ations schematic for biasing and bypassing components. 5tx rf input port for the 802.11b/g/n pa. input is matched to 50 ? . an external dc block is required. 6pa_en bias voltage for the pa. this pin also controls the tx switch of the sp3t. see truth table for proper settings. 7nc* no connect. this pin is not connected internally and can be left floating or connected to ground. 8rx rf output port for the 802.11b/g/n rx path. an external dc block is required. 9nc* no connect. this pin is not connected internally and can be left floating or connected to ground. 10 vcc supply voltage for the pa regulator. 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 nc* no connect. this pin is not connected internally and can be left floating or connected to ground. 13 c_bt bluetooth ? switch control pin. see truth table for proper level. 14 c_rx receive switch control pin. see swit ch truth table for proper level. 15 nc* no connect. this pin is not connected internally and can be left floating or connected to ground. 16 ant rf bidirectional antenna port matched to 50 ? . an external dc block is required. pkg base gnd ground connection. 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. tx pa_en gnd vcc c_rx ant bt gnd gnd rx 3 1 nc vcc nc 12 c_bt 2 13 11 10 9 8 7 6 5 4 14 15 16 vcc pdet
5 of 8 rffm8204 ds120625 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . detailed functional block diagram tx pa_en nc vcc c_rx ant bt nc nc rx 3 1 nc vcc nc 12 c_bt 2 13 11 10 9 8 7 6 5 4 14 15 16 vcc pdet
6 of 8 rffm8204 ds120625 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . package drawing
7 of 8 rffm8204 ds120625 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . pcb patterns a = 0.230 x 0.378 (mm) b = 0.378 x 0.230 (mm) c = 0.230 x 0.342 (mm) d = 0.342 x 0.230 (mm) e = 1.200 x 1.200 (mm) 6x 0.270 thermal vias for center slug "e" should be incorporated into the pcb design. the number and size of thermal vias will depend on the application, the power dissipation, and the electrical requirements. example of the number and size of vias can be found on the rfmd evaluation board layout. pcb stencil pattern pcb solder mask pattern pcb metal pattern 6x 0.270 2x 0.750 2x 0.250 2x 0.250 2x 0.750 2x 1.207 2x 1.207 2x 0.750 2x 0.250 2x 0.750 0.000 0.000 2x 0.250 2x 1.207 2x 1.207 2x 1.189 2x 1.189 2x 1.189 2x 1.189 a = 0.330 x 0.478 (mm) b = 0.478 x 0.330 (mm) c = 0.330 x 0.442 (mm) d = 0.442 x 0.330 (mm) e = 1.300 x 1.300 (mm) 6x 0.170 6x 0.170 2x 0.750 2x 0.250 2x 0.250 2x 0.750 2x 1.207 2x 1.207 2x 0.750 2x 0.250 2x 0.750 0.000 0.000 2x 0.250 2x 1.207 2x 1.207 2x 1.189 2x 1.189 2x 1.189 2x 1.189 6x 0.293 6x 0.293 2x 0.750 2x 0.250 2x 0.250 2x 0.750 2x 1.207 2x 1.207 2x 0.750 2x 0.250 2x 0.750 0.000 0.000 2x 0.250 2x 1.207 2x 1.207 2x 1.189 2x 1.189 2x 1.189 2x 1.189 a = 0.207 x 0.340 (mm) b = 0.340 x 0.207 (mm) c = 0.207 x 0.308 (mm) d = 0.308 x 0.207 (mm) e = 1.080 x 1.080 (mm) shaded are represents pin 1 location.
8 of 8 rffm8204 ds120625 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at (+1) 336-678-5570 or customerservice@rfmd.com . application schematic
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