NJG1608KB2 - 1 - ver.2005-06-17 spdt switch gaas mmic q general description q package outline NJG1608KB2 is a spdt switch ic featured low insertion loss, medium handling power and high isolation. this device is suitable for switching of tx/rx signals at sub-microwave applications. this switch exhibits wide frequency range from 100mhz to 6.0ghz at low operating voltage of 2.5v, and is operated up to 25dbm at 3.0v operating voltage. the pb free flp6 package is applied. q features o single low voltage control +2.5~+6.5v o low insertion loss 0.3db typ. @f=2.5ghz 0.35db typ. @f=2.5ghz 0.6db typ. @f=5.85ghz o high isolation 29db typ. @f=2.5ghz 30db typ. @f=2.5ghz, 18db typ. @f=5.85ghz o handling power 30dbm typ. @f=2.5ghz, v ctl =3.0v o ultra small & ultra thin package flp6-b2 (package size: 2.0x2.1x0.75mm) q pin configuration q truth table v ctl1 h l v ctl2 l h pc ? p1 off on pc ? p2 on off NJG1608KB2 ?h?=v ctl (h) , ?l?=v ctl (l) pin connection 1.p1 2.gnd 3.p2 4.vctl2 5.pc 6.vctl1 kb2 type to p view orientation mark 3 2 1 4 5 6
NJG1608KB2 - 2 - q absolute maximum ratings (t a =25c, z s =z l =50 ? ) parameter symbol conditions ratings units input power p in v ctl (l) =0v, v ctl (h) =3.0v 32 dbm control voltage v ctl v ctl (h) -v ctl (l) 7.5 v power dissipation p d at on pcb board 550 mw operating temp. t opr -40~+85 c storage temp. t stg -55~+150 c q electrical characteristics (with application circuit, v ctl (l) =0v, v ctl (h) =3.0v, z s =z l =50 ? , t a =25c) parameters symbol conditions min typ max units operating voltage (low) v ctl (l) -0.2 0 0.2 v operating voltage (high) v ctl (h) 2.5 3.0 6.5 v control current i ctl f=2.0ghz - 5 10 a insertion loss 1 loss1 f=2.0ghz - 0.3 0.45 db insertion loss 2 loss2 f=2.5ghz - 0.35 0.5 db insertion loss 3 loss3 f=5.85ghz 0.6 0.8 db isolation 1 (pc-p1, pc-p2, p1-p2) isl1 f=2.0ghz, 26 29 - db isolation 2 (pc-p1, pc-p2, p1-p2) isl2 f=2.5ghz, 27 30 - db isolation 3 (pc-p1, pc-p2, p1-p2) isl3 f=5.85ghz 16 18 db pin at 1db compression point 1 p -1db (1) f=2.5ghz 28 30 - dbm pin at 1db compression point 2 p -1db (2) f=5.85ghz 25 27 - dbm vswr (pc, p1, p2) vswr f=0.1~5.85ghz, on state - 1.4 1.6 switching time t sw f in =0.1~5.85ghz - 100 - ns
NJG1608KB2 - 3 - q terminal information no. symbol description 1 p1 rf port. this port is connected with pc port by controlling 4 th pin (v ctl(h) ) to 2.5~6.5v and 6 th pin(v ctl(l) ) to -0.2~+0.2v. an external capacitor is required to block the dc bias voltage of internal circuit 2 gnd ground terminal. please connect this terminal with ground plane as close as possible for excellent rf performance. 3 p2 rf port. this port is connected with pc port by controlling 6 th pin (v ctl (h) ) to 2.5~6.5v and 4 th pin(v ctl(l) ) to -0.2~+0.2v. an external capacitor is required to block the dc bias voltage of internal circuit. 4 vctl2 control port 2. the voltage of this port controls pc to p1 state. the ?on? and ?off? state is toggled by controlling voltage of this terminal such as high-state (2.5~6.5v) or low-state (-0.2~+0.2v). the voltage of 6 th pin have to be set to opposite state. the bypass capacitor has to be chosen to reduce switching time delay from 10pf~1000pf range. 5 pc common rf port. in order to block the dc bias voltage of internal circuit, an external capacitor is required. 6 vctl1 control port 1. the voltage of this port controls pc to p2 state. the ?on? and ?off? state is toggled by controlling voltage of this terminal such as high-state (2.5~6.5v) or low-state (-0.2~+0.2v). the voltage of 4 th pin have to be set to opposite state. the bypass capacitor has to be chosen to reduce switching time delay from 10pf~1000pf range.
NJG1608KB2 - 4 - q electrical characteristics (0.1~6.0ghz, with application circuit, without dc blo cking capacitor, losses of exte rnal circuit are excluded.) 1.0 1.2 1.4 1.6 1.8 2.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 vswr frequency (ghz) pc vswr vs. frequency ( pc-p1 on, vctl1=0v, vctl2=3v ) -40 -35 -30 -25 -20 -15 -10 -5 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 isolation (db) frequency (ghz) pc-p1 isolation vs. frequency ( vctl1=3v, vctl2=0v ) -40 -35 -30 -25 -20 -15 -10 -5 0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 isolation (db) frequency (ghz) pc-p2 isolation vs. frequency ( vctl1=0v, vctl2=3v ) -2.0 -1.5 -1.0 -0.5 0.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 insertion loss (db) frequency (ghz) pc-p2 insertion loss vs. frequency ( vctl1=3v, vctl2=0v ) -2.0 -1.5 -1.0 -0.5 0.0 0.0 1.0 2.0 3.0 4.0 5.0 6.0 insertion loss (db) frequency (ghz) pc-p1 insertion loss vs. frequency ( vctl1=0v, vctl2=3v )
NJG1608KB2 - 5 - q electrical characteristics -1.4 -1.2 -1.0 -0.8 -0.6 -0.4 -0.2 16 18 20 22 24 26 28 30 32 34 36 vctl2=2v vctl2=2.5v vctl2=3v vctl2=3.5v vctl2=4.5v vctl2=5.5v vctl2=6.5v insertion loss (db) input power (dbm) ( f=2.5ghz, vctl1=0v ) pc-p1 insertion loss vs. input power -1.8 -1.6 -1.4 -1.2 -1.0 -0.8 -0.6 -0.4 10 12 14 16 18 20 22 24 26 28 30 32 34 vctl2=2v vctl2=2.5v vctl2=3v vctl2=3.5v vctl2=6.5v insertion loss (db) input power (dbm) ( f=5.85ghz, vctl1=0v ) pc-p1 insertion loss vs. input power -100 -90 -80 -70 -60 -50 14 16 18 20 22 24 26 28 30 32 34 36 vctl2=2v vctl2=2.5v vctl2=3v vctl2=3.5v vctl2=4.5v vctl2=5.5v vctl2=6.5v input 2fo 2nd harmonics (dbc) input power (dbm) ( pc-p1 on, f=2.5ghz, vctl1=0v ) 2nd harmonics vs. input power -90 -80 -70 -60 -50 -40 -30 14 16 18 20 22 24 26 28 30 32 34 36 vctl2=2v vctl2=2.5v vctl2=3v vctl2=3.5v vctl2=4.5v vctl2=5.5v vctl2=6.5v input 3fo 3rd harmonics (dbc) input power (dbm) ( pc-p1 on, f=2.5ghz, vctl1=0v ) 3rd harmonics vs. input power 0 5 10 15 20 25 16 18 20 22 24 26 28 30 32 34 36 vctl2=2v vctl2=2.5v vctl2=3v vctl2=3.5v vctl2=4.5v vctl2=5.5v vctl2=6.5v control current 2 ( a) input power (dbm) ( pc-p1 on, f=2.5ghz, vctl1=0v ) control current 2 vs. input power
NJG1608KB2 - 6 - q electrical characteristics v ctl2 p1 p1 v ctl2 90ns 70ns
NJG1608KB2 - 7 - parts list q application circuit q recommended pcb design precautions [1] the dc blocking capacitors have to be placed at rf terminal of p1, p2 and pc. please choose appropriate capacitance values to the application frequency. [2] to reduce stlipline influence on rf characteristics, please locate bypass capacitors (c4, c5) close to each terminals. [3] for good isolation, the gnd terminal (2 nd pin) must be placed possibly close to ground plane of substrate, and through holes for gnd should be placed near by the pin connection. parts number list 1 list 2 list 3 notes 100~500mhz 0.5~2.0ghz 2.0~6.0ghz c1~c3 1000pf 56pf 16pf grm15 murata c4, c5 10pf 10pf 10pf grm15 murata pcb size=19.4x14.0mm pcb: fr-4, t=0.2mm capacitor: size 1005 stripline width=0.4mm (top view) p2 pc vctl1 vctl2 c3 c2 c5 c4 c1 p1 z o =50 ? pc p2 p1 vctl1 (0v/3.0v) c1 c3 c5 vctl2 (3.0v/0v) c4 NJG1608KB2 z o =50 ? z o =50 ? c2 3 2 1 4 5 6
NJG1608KB2 - 8 - q package outline (flp6-b2) cautions on using this product this product contains gallium-arsenide (gaas) which is a harmful material. ? do not eat or put into mouth. ? do not dispose in fire or break up this product. ? do not chemically make gas or powder with this product. ? to waste this product, please obey the relating law of your country. this product may be damaged with electric stat ic discharge (esd) or spike voltage. please handle with care to avoid these damages. [caution] the specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. the application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. lead material : copper lead surface finish : solder plating molding material : epoxy resin unit : mm weight : 6.5mg 2.00.1 654 123 0.2 0.2 2.10.1 1.70.1 0.65 0.65 0.750.05 +0.1 0.2- 0.05 +0.1 0.1 0.1 0.15- 0.05
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