1 skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 8050 production data sheet cmos 5gh z wlan 802.11 ac rf e ic with pa, lna and spdt description RFX8050 is a highly integrated, single - chip, single - die rfeic (rf front - end integrated circuit) which incorporates key rf functionality needed for ieee 802.11a/n /ac wlan system operating in the 4.9 - 5.85ghz range. the RFX8050 architecture integrates a high - efficiency high - linearity power amplifier (pa), a low noise amplifier (lna) with bypass, the associated matching network, lo rejection, and harmonic filters al l in a cmos single - chip device. rfx80 50 has simple and low - voltage cmos control logic, and requires minimal external components. a directional coupler based power detect circuit is also integrated for accurate monitoring of output power from the pa. RFX8050 is assembled in an ultra - compact low - profile 2.5x2.5x0.45 mm 16 - lead q fn package . with support to direct battery operation, the RFX8050 is i deal rf front - end solution for implementi ng 5ghz wlan in smartphones and other mobile platforms. applications ? 802.11a/n/ac ? smartphones ? tablets/mids ? gaming ? notebook/netbook/ultrabooks ? mobile/portable devices ? consumer electronics ? other 5ghz ism platforms features ? 5ghz wlan single chip, single - die rf front - end ic ? high transmit signal linearity meeting standards for 802.11ac ofdm /mcs9 modulation ? separate tx and rx transceiver port and single antenna port ? 5ghz power amplifier with low - pass harmonic filter ? low noise amplifier with bypass mode ? transmit/receive switch circuitry ? integrated power detector for transmit power monitor and control ? low voltage (1.2v) cmos control logic ? low - current mode in tx for battery current savings ? esd protection circuitry on all pins ? dc decoupled rf ports ? internal rf decoupling on all vdd bias pins ? low noise figure for the receive chain ? high power capability for received signals in bypass mode ? very low dc power consumption ? full on - chip matching circuitry ? minimal external components required ? 50 - ohm input / output matching ? market proven cmos technology ? 2.5mm x 2.5mm x 0.4 5mm small outline 16l qfn package with exposed ground pad 1 6 5 1 5 1 4 1 3 6 7 8 9 1 0 1 1 1 2 n c r x n c v d d d e t g n d l e n g n d n c n c m o d e t x e n r x e n a n t g n d t x
2 skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 8050 production data sheet pin assignment s : pin number pin name description 1 , 3, 10, 11 nc internally not connected 2 rx rf output port from lna or bypass C dc shorted to gnd 4 vdd dc supply voltage 5 det analog voltage proportional to the pa power output 6 txen cmos input to control tx enable 8 tx rf input port from the transceiver C dc shorted to gnd 9 mode cmos input to control high - linearity/low - current mode 13 ant antenna port rf signal from the pa or rf signal applied to the lna; dc shorted to gnd 15 rxen cmos input to control rx enable 16 len cmos input to control lna enable or bypass mode 7, 12, 14 gnd ground C must be connected to gnd in the application circuit pin - out diagram : (top see - through view) 1 6 5 1 5 1 4 1 3 6 7 8 9 1 0 1 1 1 2 n c r x n c v d d d e t g n d l e n g n d n c n c m o d e t x e n r x e n a n t g n d t x 1 7 g n d
3 skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 8050 production data sheet absolute maximum ratings : parameters units min max conditions dc vdd voltage supply v 0 5.0 all v dd pins dc control pin voltage v 0 3.6 all control pins dc vdd current consumption ma 400 through vdd pins when tx is on tx rf input power dbm +7 ant rf input power dbm +10 bypass mode junction temperature o c 135 storage ambient temperature o c - 40 +125 appropriate care required according to jedec standards operating ambient temperature o c - 40 +85 note: sustained operation at or above the absolute maximum ratings for any one or combinations of the above parameters may result in permanent damage to the device and is not recommended. all maximum rf input power ratings assume 50 - ohm terminal impedance . nominal o perating c onditions : parameters units min typ max conditions dc vdd voltage supply (note 1) v 3.0 3. 6 4.8 all vdd pins control voltage high (note 2 ) v 1.2 * * 3.6v or vdd whichever is lower control voltage low v 0 0.3 dc control pin current consumption a 1 dc shutdown current a 3 all control lines low pa turn on/off time sec 0.5 1 lna turn on/off time sec 0.5 1 shut - down and on state switching time sec 0.5 1 note 1: for normal operation of the RFX8050 , vdd must be continuously applied to all vdd supply pins. note 2: if control voltage can exceed 1.8v, a 1k ? C 10k ? series resistor is recommended for the application circuit on each control line .
4 skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 8050 production data sheet transm it path characteristics ( vdd =3. 6 v; t=+25 o c ) parameters units min typ max conditions operating frequency band ghz 4.9 5. 85 linear output power for 802. 11ac dbm +16 high linearity mode, for evm<1.8%, mcs9/256qam /80mhz linear output power for 802.11a dbm +1 7 high linearity mode, evm<3%, 64qam/54mbps/20mhz +1 5.5 low current mode, evm<3%, 64qam/54mbps/20mhz small - signal power gain db 28 high linearity mode, between tx and ant pins 27 low current mode, between tx and ant pins tx quiescent current ma 14 5 high linearity mode 100 low current mode tx linear current ma 20 5 p out = +1 7 dbm , high linearity mode , 20 mhz 1 55 p out = +1 7 dbm, low current mode , 20mhz power detector voltage output mv 200 - 1000 p out = +5 to +20 dbm , 10k? load second harmonic db m/mhz - 3 0 p out =+ 20 dbm ht20/mcs0 third harmonic db m/mhz - 35 p out =+20dbm ht20/mcs0 input return loss db - 1 2 at tx port output return loss db - 12 at ant port load vswr for stability (cw, fix pin for pout=+20dbm with 50? load) n/a 4:1 6:1 all non - harmoni cally re lated spurs less than - 43 dbm/mhz load vswr for ruggedness (cw, fix pin for pout=+20dbm with 50 ohm load ) n/a 8:1 10:1 no damage
5 skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 8050 production data sheet recei ve path characteristics ( vdd =3. 6 v; t=+25 o c) parameters units min typ max conditions operating frequency band ghz 4.9 5.85 all rf pins are loaded by 50 - ohm gain db 1 2 high gain mode, between ant and rx pins; rxen=len=high noise figure db 3 . 6 high gain mode, at ant pin insertion loss for lna bypass mode db 6 between ant and rx pins; rxen=high, len=low input return loss db - 10 at ant port , high gain mode - 10 bypass mode output return loss db - 10 at rx port, high gain mode - 10 bypass mode rf port impedance ohm 50 dc quiescent current ma 1 3 no rf applied , t hrough vdd, high gain mode 1. 2 no rf applied, through vdd, bypass mode input p 1 db dbm - 5 at ant pin, high - gain mode +10 at ant pin, bypass mode control logic truth table note: 1 denotes high voltage state (> 1.2v) 0 denotes low voltage stat e (<0.3v) at control pins txen len rxen mode mode of operation 0 0 0 0 shutdown mode 1 x x 0 transmit mode, high - linearity 1 x x 1 transmit mode, low - current 0 1 1 x receive mode, high - gain 0 0 1 x receive mode, bypass all others unsupported (no damage)
6 skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 8050 production data sheet x denotes the dont care state 1k? C 10k? series resistor may be required for each control line package dimensions (all dimensions in mm) : pcb land pattern package marking a a 1 b d e d 2 e 2 p i n 1 m a r k p i n 1 e a a 1 b d d 2 e e 2 e m i n 0 . 4 0 . 1 5 1 . 4 5 1 . 4 5 n o m 0 . 4 5 0 . 2 2 . 5 1 . 5 2 . 5 1 . 5 0 . 5 m a x 0 . 5 0 . 0 5 0 . 2 5 1 . 5 5 1 . 5 5 d i m e n s i o n s ( m m ) l l 0 . 2 2 5 0 . 1 7 5 0 . 2 7 5 f f 0 . 2 0 . 2 5 0 . 1 5 3 . 0 mm 2 . 5 mm 1 . 6 mm x 1 . 6 mm 0 . 45 mm 0 . 5 mm 0 . 2 mm 0 . 25 mm 8 0 5 0 l l l . l u c y w w f i r s t l i n e : p a r t n u m b e r s e c o n d l i n e : l o t # t h i r d l i n e : d a t e c o d e p i n 1 m a r k
7 skyworks solutions, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 8050 production data sheet tape specification
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