1 skyworks solution s, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 2 42 advanced data sheet 2.4ghz high power 802.11 ac wlan linear power amplifier d escription the RFX242 is high power, high linearity power amplifier implemented in cmos process. the device is optimized to provide all functionality of transmit power amplification for ieee 802.11b/g/n/ac applications in the 2.4ghz frequency range. the RFX242 provides 30db gain and up to 25dbm linear output power with low evm of <3% for 802.11n mcs7 ht40 and <1.8%g for 802.11ac mcs9 vht20 signals. it has cmos logic control, on - chip input impedance matching, as well as integrated rf decoupling for the power supply. the RFX242 is assembled in a compact 3.0x3.0mm 16l - qfn package. it requires minimal number of external components to greatly simplify rf front - end implementation. a pplications ? ? ? ? ? ? f eatures ? 2.4ghz , single chip, single - die rf power amplifier ? 2.4ghz high power pa with low - pass harmonic filter ? 802.11ac 256 - qam support with <1.8% evm up to 23dbm or <3% up to 25dbm at 5v ? high gain of 30 db ? high transmit signal linearity meeting standards for ofdm and cck modulation ? integrated power detector for transmit power monitor and control ? compatible with low voltage (1.2v) cmos control logic or levels up to vdd ? esd protection circuitry on all ports ? dc decoupled rf ports ? internal rf decoupling on all vdd bias pins ? very low dc power consumption ? full on - chip matching and decoupling circuitry ? minimal external components required ? 50 - ohm input / output matching ? 3 x 3 x 0. 5 5mm small outline qfn - 16 package with exposed ground pad n c v d d 1 n c r f i n p a e n n c n c n c b i a s n e t w o r k g n d v d d 0 n c d e t n c r f o u t r f o u t n c
2 skyworks solution s, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 2 42 advanced data sheet d evice p in - o ut d iagram (top see - through view) d evice p in - o ut a ssignment pin number pin name description 1 rfin rf input signal to the pa 2 paen cmos logic control to enable the pa 3 gnd ground C must be connected to ground in the application circuit 4 , 15 v dd0 C vdd 1 dc voltage supply 7 det pa power detector voltage output 10, 11 rfout rf output signal from the pa 5, 6, 8, 9, 12, 13, 14, 16 nc not connected c ontrol l ogic t ruth t able paen mode of operation 0 pa is off; device in standby 1 pa is enabled note : 1 denotes high volta ge stage (>1.2v) at paen control pin ; 0 denotes low voltage stage (<0.3v) at paen control pin 1 6 5 1 2 3 4 1 5 1 4 1 3 6 7 8 9 1 0 1 1 1 2 r f i n p a e n g n d v d d 0 n c d e t n c n c r f o u t r f o u t n c n c v d d 1 n c n c 1 7 g n d n c
3 skyworks solution s, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 2 42 advanced data sheet a bsolute m aximum r atings parameters min max units conditions dc vdd voltage supply 0 6.0 v all vdd pins dc control pin voltage 0 3.6 v all control pins dc vdd current consumption 800 ma vdd pins when pa is enabled tx rf input power +10 dbm ant rf input power + 10 dbm junction temperature 150 c storage ambient temperature - 50 + 150 c appropriate care required according to jedec standards operating ambient temperature - 40 +85 c all operating modes esd voltage (hbm) 1000 v human body model note: sustained operation at or above the absolute maximum ratings for any single 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. g eneral c haracteristics parameters min typ max units conditions operating frequency 2.4 2.5 ghz dc vdd voltage supply (note 1) 4.5 5.0 5.5 v all vdd pins control voltage high 1.2 3.6 v control voltage low 0 0.3 v control pin current consumption 1 a dc shutdown current 5 a pa turn on/off time 1 sec input single - ended impedance 50 ? ? ja (note 2) 25 o c/w ? j c bottom (note 3) 3 .5 o c/w for indication only ? j c top (note 3) 15 o c/w for indication only note 1 C for normal operation of the rfx 242 , vdd must be continuously applied to all vdd supply pins. note 2 C for operation above +85 o c, use the ? ja as guidance for system design to assure the junction temperature will not exceed the maximum of +150 o c. note 3 C ? j c is provided for indication only. system operational design must be based on ? ja .
4 skyworks solution s, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 2 42 advanced data sheet t ransmit c har a cteristics ( vdd = 5.0v, p aen = hi , t a = +25 c, unless o therwise s pecified , as measured on RFX242 evaluation b oard , de - e mbedded to the devic e ) parameters min typ max units conditions operating frequency band 2.4 2.5 ghz all rf pins terminated by 50 ohms output p1db +3 1 dbm cw linear output power ( 802.11 ac ) +2 3 dbm 802.11ac mcs9 vht20 < - 35db devm linear output power ( 802.11 n) +25 dbm 802.11n mcs7 ht40 < - 30db devm linear output power ( 802.11 b) +29 dbm 1mbps cck mask complianc e small - signal gain 3 2 db cw second harmonic - 70 dbc p out = + 29 dbm, cw third harmonic - 70 dbc p out = + 29 dbm, cw input return loss - 1 5 db at rfin pin output return loss - 5 db at rfout pin s tx quiescent current 24 0 ma no rf input signal tx linear current 4 3 0 ma p out = + 25 dbm , 11n mcs7 64 - qam power detector voltage output 0.3 - 1 v p ou t = +5 to +27 dbm , 10k ? load load vswr for stability (cw, fix pin for p out = +29dbm with 50? load) 4:1 6:1 n/a all non - harmonically related spurs less than - 43 dbm/hz load vswr for ruggedness (cw, fix pin for p out = +29dbm with 50? load) 8:1 10:1 n/a no damage
5 skyworks solution s, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 2 42 advanced data sheet p ackage d imensions p ackage m arking a a 1 b d e d 2 e 2 p i n 1 m a r k p i n 1 e l a a 1 b d d 2 e e 2 e l m a x d i m e n s i o n s ( m m ) n o m m i n 0 . 5 0 . 0 0 0 . 2 2 . 9 5 1 . 6 5 2 . 9 5 1 . 6 5 0 . 4 5 0 . 3 5 0 . 5 5 0 . 2 5 3 . 0 1 . 7 3 . 0 1 . 7 0 . 5 0 . 4 0 . 6 0 . 0 5 0 . 3 3 . 0 5 1 . 7 5 3 . 0 5 1 . 7 5 0 . 5 5 0 . 4 5 2 4 2 p i n 1 m a r k s e c o n d l i n e l o t n u m b e r l l l l . l a d y y w w f i r s t l i n e p a t n u m b e r t h i r d l i n e d a t e c o d e
6 skyworks solution s, inc. ? phone [781] 376 - 3000 ? fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com rfx 2 42 advanced data sheet tape and reel information:
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