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BGM781N11 gps front-end module data sheet, rev.3.1, oct. 2009 small signal discretes
edition 2009-10-30 published by infineon technologies ag 81726 mnchen, germany ? infineon technologies ag 2009. all rights reserved. legal disclaimer the information given in this docu ment shall in no event be regarded as a guarantee of conditions or characteristics (?beschaffenheitsgarantie?). with respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the app lication of the device, infi neon technologies hereby disclaims any and all warranties a nd liabilities of any kind, including without limitation warranties of non-infringement of intellectual property rights of any third party. information for further information on technology , delivery terms and conditions and prices please contact your nearest infineon technologies office ( www.infineon.com ). warnings due to technical requirements components may contain da ngerous substances. for information on the types in question please contact your nearest infineon technologies office. infineon technologies components may only be used in life-support devices or systems with the express written approval of infineon technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safe ty or effectiveness of that device or system. life support devices or systems are intended to be implanted in the hu man body, or to support an d/or maintain and sustain and/or protect human life. if they fail, it is reasonable to assume that the health of the user or other persons may be endangered.
BGM781N11 data sheet 3 rev.3.1, 2009-10-30 oct. 2009 revision history: gps fr ont-end module, rev.3.1 previous version: 2009-09-08, rev.3.0 page subjects (major cha nges since last revision) 8 application changed from high-q to low-q externals, l1 and l2 values changed 4,7 typ. noise figure from 1.6db to 1.7db updated due to low-q externals 6 pin 6 and pin 11 ti ed together for esd ca pability hbm in table 2 10 updated package drawing in figure 5 from 0.20mm to 0.25mm minimum distance in package 6 maximum rf input power updated in table 2
data sheet 4 rev.3.1, 2009-10-30 gps front-end module BGM781N11 1 gps front-end module figure 1 blockdiagram with main external components features ? operating frequency: 1575.42 mhz ? high gain: 18.6 db ? low noise figure: 1.7 db ? low current consumption: 3.3 ma ? out-of-band rejection in cellular bands: 80 dbc ? input compression point in cellular bands: 20 dbm ? supply voltage: 1.5 v to 3.6 v ? tiny tsnp-11-2 leadless package ? rf input internally pre-matched to 50 ? ? rf output internally matched to 50 ? ? hbm esd capability of all pins: 2 kv ? iec esd contact discharge of rf input pin: 8 kv ? only 2 external smd parts ? rohs compliant package (pb-free) application ? 1575.42 mhz gps, galileo, gps phones, personal navigaton devices tsnp-11-2 package top view (2.5x2.5x0.73mm3) 7613yvg %*0b%orfngldjudpbzlwkbh[whuqdoyvg %,$6 5),1 321 9&& %,$6 $, %2 *1' %*01 %* /1$ 3rvw)lowhu 3uh)lowhu %*
BGM781N11 description data sheet 5 rev.3.1, 2009-10-30 2 description the BGM781N11 is a combination of a low-insertion-loss pre-f ilter with infineon?s high performance low noise amplifier (lna) and a high-attenuation post-filter for gl obal positioning system (gps) applications. through the low insertion loss of the filters, the BGM781N11 prov ides 18.6 db gain, 1.7 db noise figure and high linearity performance. in addition BGM781N11 provides very high out-of-band attenuation in c onjunction with a high input compression point. its current consumption is as low as 3.3 ma. it opera tes over the 1.5 v to 3.6 v supply voltage range. pin definition and function maximum ratings type package marking BGM781N11 tsnp-11-2 m781 table 1 pin definition and function pin no. symbol function 1 bg2 optional output-filter gnd 2 pon power on/off 3 vcc power supply 4 n.c. not used 5 rfin rf input 6 bg1 input-filter gnd 7 bo1 input-filter output 8 ai lna input 9biasbias 10 rfout rf output 11 gnd package middle island table 2 maximum ratings parameter 1) symbol value unit note / test condition voltage at pin bg2 to gnd v bg2 -1...1 v voltage at pin pon to gnd v pon -0.3...3.6 v voltage at pin vcc to gnd v cc -0.3...3.6 v voltage at pin rfin to gnd v rfin -3...3 v voltage at pin bg1 to gnd v bg1 -3...3 v voltage at pin b01 to gnd v bo1 -3...3 v voltage at pin ai to gnd v ai -0.3...0.9 v voltage at pin bias to gnd v bias -0.3...0.9 v voltage at pin rfout to gnd v rfout -3...3 v current into pin vcc i vcc 25 ma rf input power inband p in 3 dbm continuous wave signal f = 1575.42 mhz 50 ohm source and load impedances
data sheet 6 rev.3.1, 2009-10-30 BGM781N11 description rf input power out of band p in,oob 21 continuous wave signal f = 50 - 1460 mhz and 1710 - 4000 mhz 50 ohm source and load impedances total power dissipation p tot 90 mw junction temperature t j 150 c ambient temperature range t a -40... 85 c storage temperature range t stg -65... 85 c esd capability hbm of all pins, with pin 6 and gnd middle island pin 11 tied together v esd1 2 kv according to jesd22a-114 esd contact discharge capability of rf input pin 5 v esd2 8 kv according to iec61000-4-2 1) all voltages refer pin-to-pin, unless otherwise specified. table 2 maximum ratings (cont?d) parameter 1) symbol value unit note / test condition
BGM781N11 electrical characteristics data sheet 7 rev.3.1, 2009-10-30 3 electrical characteristics table 3 electrical characteristics: t a =25c, v cc = 1.8 v, v pon,on = 1.8 v, v pon,off =0v 1) 1) specification based on performance as measured on bgm 781n11application board shown in figure 3 and including pcb losses (unless noted otherwise) parameter symbol values unit note / test condition min. typ. max. supply voltage v cc 1.5 1.8 3.6 v supply current i cc -3.3-maon-mode -0.23 a off-mode power on control voltage v pon 1.0 - vcc v on-mode 0 - 0.4 v off-mode power on control current i pon -5- aon-mode --1 a off-mode power gain settling time 2) 2) to be within 1 db of the final gain off- to on-mode; to be within 3 db of the final gain on- to off-mode t s -5- s off- to on-mode -5- s on- to off-mode passband parameters @ f = 1575.42 mhz insertion power gain | s 21 | 2 17.1 18.6 - db noise figure 3) 3) pcb and connector losses subtracted, verified on aql base nf -1.72.3db z s =50 ? input return loss rl in -12-db output return loss rl out -15-db reverse isolation 1/| s 12 | 2 -40-db inband input 3rd order intercept point iip 3 --7-dbm f 1 = 1575.42 mhz f 2 = f 1 +1mhz inband input 1 db compression point ip 1db --15-dbm f 1 = 1575.42 mhz out-of-band input 1 db compression point ip 1db_900m -20- f 1 =900mhz out-of-band input 1 db compression point ip 1db_1710m -20- f 1 = 1710 mhz stopband parameters rejection 4) 4) rejection=|(1/| s 21 | 2 at stopband frequency)|+|(1/| s 21 | 2 at 1575.42 mhz)| rej 900m -90-dbc f = 806 mhz - 928 mhz rejection 4) rej 1800m -80-dbc f = 1710 mhz - 1980 mhz rejection 4) rej 2400m -72-dbc f = 2400 mhz - 2500 mhz stability k ->1- f =20mhz-20ghz
data sheet 8 rev.3.1, 2009-10-30 BGM781N11 application information 4 application information 4.1 application circuit figure 2 application circuit with external components table 4 bill of materials name value package manufacturer function c1 1 f 0402 various supply volt age filtering (optional) l1 3.6 nh 0402 murata lqg15hs input matching l2 33 nh 0402 murata lqg15hs bias n1 BGM781N11 tsnp-11-2 infineon gps fe module %*0b$ssolfdwlrqbflufxlwbzlwkbh[whuqdoyvg %*01 7rsylhz *1' %* $, %2 %,$6 5)287 qf 5),1 9&& 321 & / / %*
BGM781N11 application information data sheet 9 rev.3.1, 2009-10-30 4.2 application board figure 3 top view of application board figure 4 cross section view of application board %*0b$ss%rdugb/d\rxwbwrsyvg %*0b$ss%rdugb&urvvb6hfwlrqyvg &rsshu?pjrogsodwhg 5rjhuv52&pp &rsshu?p )5pp &rsshu?p
data sheet 10 rev.3.1, 2009-10-30 BGM781N11 package information 5 package information figure 5 side and bottom views of tsnp-11-2 package figure 6 marking layout 7613b0dunlqjb/d\rxwb%*0yvg 0 %*01 7\shfrgh &: 'dwhfrgh<<:: 3lqpdunlqj /dvhupdunlqj
BGM781N11 package information data sheet 11 rev.3.1, 2009-10-30 figure 7 recommended tsnp-11-2 footprint for optimum rf performance figure 8 alternative tsnp-11-2 footprint for low cost pcb designs
data sheet 12 rev.3.1, 2009-10-30 BGM781N11 packing information 6 packing information figure 9 tsnp-11-2 carrier tape figure 10 tsnp-11-2 pin 1 orientation in tape

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