1 of 9 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. ?2006, rf micro devices, inc. product description 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at ( ( + 1 ) 3 3 6 - 6 7 8 - 5 5 7 0 or c c u s t o m e r s e r v i c e @ r f m d . c o m . ordering information bifet hbt ldmos 1 2 3 4 8 7 6 5 in+ in- gnd gc vcc1 vcc2 out+ out- gain control rf2637 receive agc amplifier the rf2637 is a complete agc amplifier designed for the receive section of 3v cel- lular and pcs applications basestations. it is designed to amplify if signals while providing more than 90db of gain control range. noise figure, ip 3 , and other speci- fications are designed for basestations. the ic is manufactured on an advanced high frequency sige process, and is packaged in a standard miniature 8-lead plas- tic msop package. features supports basestation applications -55db to +51db gain control range at 85mhz single 3v power supply -2dbm input ip 3 12mhz to 385mhz operation applications 3v basestation systems general purpose linear if amplifier commercial and consumer systems portable battery-powered equipment rf2637sq sample bag with 25 pieces rf2637sr 7 reel with 100pieces rf2637tr13 13 reel with 2500 pieces rf2637pcba-410 12mhz to 385mhz pcba with 5-piece sample bag ds130620 package style: msop-8
2 of 9 rf2637 ds130620 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at ( ( + 1 ) 3 3 6 - 6 7 8 - 5 5 7 0 or c c u s t o m e r s e r v i c e @ r f m d . c o m . absolute maximum ratings parameter value unit supply voltage -0.5 to +5.0 v dc control voltage -0.5 to +5.0 v dc input rf power +10 dbm operating ambient temperature -40 to +85 c storage temperature -40 to +150 c parameter specification unit condition min. typ. max. overall t=25c, 85mhz, v cc =3.0v, z s =500 , z l =500 , 500 external input terminating resistor, 500 external output terminating resistor (effective z s =333 , effective z l =250 ) (see application example) frequency range 12 to 385 mhz maximum gain +40 +51 +65 db v gc =2.5v, 85mhz minimum gain -65 -55 -40 db v gc =0.1v, 85mhz maximum gain +35 +45 +55 db v gc =2.5v, 385mhz minimum gain -68 -58 -48 db v gc =0.1v, 385mhz gain slope 57 db/v note 1 gain control voltage range 0 to 2.5 v dc source impedance of 4.7k gain control input impedance 30 k noise figure 5 7.2 db at maximum gain and 85mhz input ip 3 -46 -40 dbm at +40db gain, referenced to 500 -2 dbm at minimum gain, referenced to 500 stability (max vswr) 10:1 spurious<-70dbm if input input impedance 1 k cdma, differential power supply voltage 2.7 to 3.4 v current consumption 6 10 15 ma minimum gain, v cc =3.0v 7 11.5 15 ma maximum gain, v cc =3.0v thermal thermal resistance 150 c/w theta j-ref 85c maximum junction temperature 90 c ref 85c note 1: measured between a gain control voltage of 1.0v to 1.5v. c a u t i o n ! esd sensitive device. 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 perfor- mance or functional operation of the device 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 flame retardant, and <2% antimony in solder.
3 of 9 rf2637 ds130620 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at ( ( + 1 ) 3 3 6 - 6 7 8 - 5 5 7 0 or c c u s t o m e r s e r v i c e @ r f m d . c o m . pin function description interface schematic 1in+ cdma balanced input pin. this pin is internally dc-biased and should be dc-blocked if connected to a device with a dc level other than v cc pres- ent. a dc to connection to v cc is acceptable. for single-ended input opera- tion, one pin is used as an input and the other cdma input is ac-coupled to ground. the balanced input impedance is 1k , while the single-ended input impedance is 500 . 2in- same as pin 2, except complementary input. see pin 1. 3gnd ground connection. for best performance, keep traces physically short and connect immediately to ground plane. 4gc analog gain adjustment for all amplifiers. valid control ranges are from 0v to 2.5v. maximum gain is selected with 2.5v. minimum gain is selected with 0v. these voltages are only valid for a 4.7k dc source impedance. 5out- balanced output pin. this is an open-collector output, designed to operate into a 250 balanced load. the load sets the operating impedance, but an external choke or matching inductor to v cc must also be supplied in order to correctly bias this output. this bias inductor is typically incorporated in the matching network between the output and next stage. because this pin is biased to v cc , a dc-blocking capacitor must be used if the next stages input has a dc path to ground. 6out+ same as pin 5, except complementary output. see pin 5. 7vcc2 supply voltage pin. external bypa ssing is required. the trace length between the pin and the bypass capacitors should be minimized. the ground side of the bypass capacitors should connect immediately to ground plane. 8vcc1 same as pin 7. see pin 7. 700 bias 700 cdma- cdma+ 23.5 k 15 k 12.7 k v cc out- out+
4 of 9 rf2637 ds130620 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at ( ( + 1 ) 3 3 6 - 6 7 8 - 5 5 7 0 or c c u s t o m e r s e r v i c e @ r f m d . c o m . package drawing shaded lead is pin 1. 0.192 0.008 0.118 0.004 sq 0.0256 0.012 6 max 0 min 0.021 0.004 0.006 0.002 0.034 0.006 0.003 -a-
5 of 9 rf2637 ds130620 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at ( ( + 1 ) 3 3 6 - 6 7 8 - 5 5 7 0 or c c u s t o m e r s e r v i c e @ r f m d . c o m . application schematic evaluation board schematic (download bill of materials from www.rfmd.com.) 1 2 3 4 8 7 6 5 gain control r1: 1 k cdma- cdma+ c d m a i f f i l t e r z s =500 z in , ef f =500 z in =1 k z s, eff =333 measurement reference plane l1 l1 v cc c2 out+ out- v cc r2: 500 c1 c1 c2 measurement reference plane z load =500 z load,eff =250 z out =500 10 nf 10 nf r1 sets the cdma balanced input impedance. the effective input impedance is then 500 . r2 sets the balanced output impedance to 500 . l1 and c2 serve dual purposes. l1 serves as an output bias choke, and c2 serves as a series dc block. in addition, the values of l1 and c2 may be chosen to form an impedance matching network of the load impedance is not 500 . otherwise, the values of l1 and c1 are chosen to form a parallel-resonant tank circuit at the if when the load impedance is 500 . gain 4.7 k gain control r3 510 c8 15 pf c9 15 pf l3 390nh l4 390nh c6 10 nf r2 4.7 k t1 c3 15 pf c1 10 nf c4 15 pf c2 10 nf l1 390 nh l2 390 nh 1 2 3 4 8 7 6 5 t2 c5 1 nf 50 strip j2 sma out 50 strip j1 sma cdma gc vcc 2627400a r1 1 k vcc c10 10 nf c7 10 nf 1 2 3 p1 p1-1 p1-3 vcc gnd gc
6 of 9 rf2637 ds130620 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at ( ( + 1 ) 3 3 6 - 6 7 8 - 5 5 7 0 or c c u s t o m e r s e r v i c e @ r f m d . c o m . evaluation board layout board size 2.750" x 2.000" board thickness 0.031, board material fr-4
7 of 9 rf2637 ds130620 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at ( ( + 1 ) 3 3 6 - 6 7 8 - 5 5 7 0 or c c u s t o m e r s e r v i c e @ r f m d . c o m .
8 of 9 rf2637 ds130620 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at ( ( + 1 ) 3 3 6 - 6 7 8 - 5 5 7 0 or c c u s t o m e r s e r v i c e @ r f m d . c o m . gain versus vgc across temperature, v cc = 3.0v, f o = 85mhz -60.0 -40.0 -20.0 0.0 20.0 40.0 60.0 0.0 0.5 1.0 1.5 2.0 2.5 v gc (v) gain (db) -40c 25c 85c input ip3 versus v gc across temperature, v cc = 3.0v -60.0 -50.0 -40.0 -30.0 -20.0 -10.0 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 v gc (v) input ip3 (dbm) -40c 25c 85c noise figure versus frequency across temperature, v cc = 3.0v, v gc = 2.5v 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 0.0 50.0 100.0 150.0 200.0 250.0 300.0 350.0 400.0 450.0 frequency (mhz) noise figure (db) -40c 25c 85c
9 of 9 rf2637 ds130620 7628 thorndike road, greensboro, nc 27409-9421 for sales or technical support, contact rfmd at ( ( + 1 ) 3 3 6 - 6 7 8 - 5 5 7 0 or c c u s t o m e r s e r v i c e @ r f m d . c o m . rohs compliant: yes package total weight in grams (g): 0.025 compliance date code: n/a bill of materials revision: - pb free category: e3 p b c d h g c r v i p b b p b d e d i e 000000 m o l d i n g c o m p o u n d 000000 l e a d f r a m e 000000 d i e a t t a c h e p o x y 000000 w i r e 000000 s o l d e r p l a t i n g 000000 * dire c tive 2002 / 9 5/e c o f the eur o pean parliament and o f the co un c il o f 2 7 january 2003 on the restriction o f the use of certain hazardous substances in electrical and electronic equipment rohs* banned material content b i l l o f m a t e r i a l s p a r t s p e r m i l l i o n ( p p m ) t h i s r o h s b a n n e d m a t e r i a l c o n t e n t d e c l a r a t i o n w a s p r e p a r e d s o l e l y o n i n f o r m a t i o n , i n c l u d i n g a n a l y t i c a l d a t a , p r o v i d e d t o r f m d b y i t s s u p p l i e r s , a n d a p p l i e s t o t h e b i l l o f m a t e r i a l s ( b o m ) r e v i s i o n n o t e d
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