NJG1657MD7 - 1 - ver.2008-08-22 pin connection 1. gnd 2. gnd 3. p1 4. gnd 5. p3 6. gnd 7. p4 *exposed pad: gnd 8. gnd 9. p2 10. gnd 11. gnd 12. vdd 13. ctl1 14. ctl2 dpdt switch gaas mmic ! general description ! package outline the NJG1657MD7 is a gaas dpdt switch featured low insertion loss, high isolation and small size package, and suited for mobile terminal applications. the NJG1657MD7 switches a path between common rf port and five rf ports by three bit control signal from 1.7v of logical high voltage. in addition, this switch includes esd protection circuits for good esd tolerance. the NJG1657MD7 is available in a very small, lead-free, halogen-free, 1.6mm x 1.6mm x 0.397 mm, 14-pin eqfn14-d7 package. ! features " low insertion loss 0.3db typ. @f=0.9ghz, p in =30dbm " high isolation 32db typ. @f=0.9ghz, p in =30dbm " high power handling p -0.1db =33dbm min. @f=0.9ghz, v dd =2.85v " package eqfn14-d7 (package size: 1.6x1.6x0.397mm typ.) ! pin configuration ! truth table ?high?=v ctl(h) , ?low?=v ctl(l) path ctl1 ctl2 sw1 sw2 sw3 sw4 sw5 sw6 p1-p3 low low on off off on off on p1-p4 high low off on on off off on p2-p3 low high off on on off on off p2-p4 high high on off off on on off 1 3 decoder 2 4 5 6 7 8 9 10 11 14 13 12 sw1 sw3 sw2 sw4 sw5 sw6 eqfn14-d7 ( to p view ) NJG1657MD7 note: please note that any information on this catalog will be subject to change.
NJG1657MD7 - 2 - ! absolute maximum ratings t a =+25c, z s =z l =50 ohm parameter symbol conditions conditions units rf input power p in v dd =2.85v, v ctl =0/2.6v 36 dbm supply voltage v dd vdd terminal 5.0 v control voltage v ctl ctl1, ctl2 terminal 5.0 v power dissipation p d 4-layer fr4 pcb with through-hole (74.2x74.2mm), t j =150c 1300 mw operating temp. t opr -40~+95 c storage temp. t stg -55~+150 c ! electrical characteristics1 (dc characteristics) general conditions: v dd =2.85v, v ctl(l) =0v, v ctl(h) =2.6v, t a =+25c, z s =z l =50 ohm, with application circuit parameters symbol conditions min typ max units operating voltage v dd 2.5 2.85 4.5 v operating current i dd p in =30dbm - 50 100 a control voltage (low) v ctl(l) 0 - 0.5 v control voltage (high) v ctl(h) 1.7 2.6 4.5 v control current i ctl - 5 10 a
NJG1657MD7 - 3 - ! electrical characteristics2 (rf characteristics) general conditions: v dd =2.85v, v ctl(l) =0v, v ctl(h) =2.6v, t a =+25c, z s =z l =50 ohm, with application circuit parameters symbol conditions min typ max units insertion loss 1 loss1 f=0.9ghz, p in =30dbm - 0.30 0.45 db insertion loss 2 loss2 f=1.9ghz, p in =30dbm - 0.40 0.55 db isolation 1 isl1 f=0.9ghz, p in =30dbm 30 32 - db isolation 2 isl2 f=1.9ghz, p in =30dbm 24 26 - db 0.1db compression input power p -0.1db f=0.9ghz 33 35 - dbm 2nd harmonic suppression 2fo f=0.9ghz, p in =30dbm - -75 -60 dbc 3rd harmonic suppression 3fo f=0.9ghz, p in =30dbm - -75 -60 dbc vswr (pc, p1, p2) vswr f=0.9g hz, on state - 1.2 1.4 switching time t sw - 2 5 s
NJG1657MD7 - 4 - ! terminal information no. symbol description 1,2,4,6,8, 10,11 gnd ground terminal. please connect this terminal with ground plane as close as possible for excellent rf performance. 3 p1 rf input / output port. external capacitor is required to block the dc bias voltage of internal circuit. 5 p3 rf input / output port. external capacitor is required to block the dc bias voltage of internal circuit. 7 p4 rf input / output port. external capacitor is required to block the dc bias voltage of internal circuit. 9 p2 rf input / output port. external capacitor is required to block the dc bias voltage of internal circuit. 12 vdd a supply voltage terminal (+2.5~+4.5v). please place a bypass capacitor between this and gnd for avoiding rf noise from outside. 13 ctl1 14 ctl2 control port. ?high level? is dc +1.7v~4.5v, ?low level? is dc 0~+0.5v.
NJG1657MD7 - 5 - -35 -30 -25 -20 -15 -10 -5 0 00.511.52 -45 o c -20 o c +25 o c +70 o c +90 o c +100 o c transmission (db) ctl2 voltage ( v ) transmission vs. control voltage ( p2-p4 on, f=900mhz, v dd =2.85v, ctl1=2.6v ) ! electrical characteristics (with application circuit, loss of external circuit are excluded) -2.0 -1.5 -1.0 -0.5 0.0 10 15 20 25 30 35 40 v dd =2.5v v dd =2.85v v dd =3.2v v dd =4.5v insertion loss (db) input power (dbm) insertion loss vs. input power ( f=0.9ghz, p1-p3 on, ctl1=ctl2=0v ) -40 -35 -30 -25 -20 -15 -10 -5 0 0.5 1.0 1.5 2.0 2.5 3.0 p1-p2 p3-p4 isolation (db) frequency (ghz) isolation vs. frequency ( p1-p3 on, v dd =2.85v, ctl1=ctl2=0v ) 1.0 1.2 1.4 1.6 1.8 2.0 0.5 1.0 1.5 2.0 2.5 3.0 p1 port p3 port vswr frequency (ghz) vswr vs. frequency ( p1-p3 on, v dd =2.85v, ctl1=ctl2=0v ) -2.0 -1.5 -1.0 -0.5 0.0 0.5 1.0 1.5 2.0 2.5 3.0 insertion loss (db) frequency (ghz) insertion loss vs. frequency ( p1-p3 on, v dd =2.85v, ctl1=ctl2=0v ) -90 -85 -80 -75 -70 -65 -60 -55 -50 20 22 24 26 28 30 32 2fo 3fo harmonics (dbc) input power (dbm) harmonics vs. input power ( f=900mhz, p1-p3 on, ctl1=ctl2=0v ) input 2fo=-88dbc input 3fo=-86dbc
NJG1657MD7 - 6 - -40 -35 -30 -25 -20 -50 0 50 100 p1-p3 on p1-p4 on p2-p3 on p2-p4 on isolation (db) ambient temperature ( o c ) p1-p2 isolation vs. ambient temperature ( f=900mhz, v dd =2.85v ) ! electrical characteristics (with application circuit, loss of external circuit are excluded) -2.0 -1.5 -1.0 -0.5 0.0 -50 0 50 100 f=0.9ghz f=1.9ghz insertion loss (db) ambient temperature ( o c ) insertion loss vs. ambient temperature ( p1-p3 on, v dd =2.85v, ctl1=ctl2=0v ) 1.0 1.2 1.4 1.6 1.8 2.0 -50 0 50 100 f=0.9ghz f=1.9ghz vswr ambient temperature ( o c ) vswr vs. ambient temperature ( p1 port, v dd =2.85v, ctl1=ctl2=0v ) -40 -35 -30 -25 -20 -50 0 50 100 p1-p3 on p1-p4 on p2-p3 on p2-p4 on isolation (db) ambient temperature ( o c ) p1-p2 isolation vs. ambient temperature ( f=1.9ghz, v dd =2.85v ) -40 -35 -30 -25 -20 -50 0 50 100 p1-p3 on p1-p4 on p2-p3 on p2-p4 on isolation (db) ambient temperature ( o c ) p3-p4 isolation vs. ambient temperature ( f=1.9ghz, v dd =2.85v ) -40 -35 -30 -25 -20 -50 0 50 100 p1-p3 on p1-p4 on p2-p3 on p2-p4 on isolation (db) ambient temperature ( o c ) p3-p4 isolation vs. ambient temperature ( f=900mhz, v dd =2.85v )
NJG1657MD7 - 7 - ! electrical characteristics (with application circuit, loss of external circuit are excluded) -40 -35 -30 -25 -20 -50 0 50 100 p1-p4 on p2-p3 on isolation (db) ambient temperature ( o c ) p1-p3 isolation vs. ambient temperature ( f=900mhz, v dd =2.85v ) -40 -35 -30 -25 -20 -50 0 50 100 p1-p4 on p2-p3 on isolation (db) ambient temperature ( o c ) p2-p4 isolation vs. ambient temperature ( f=900mhz, v dd =2.85v ) 0 10 20 30 40 50 60 -50 0 50 100 i dd i ctl current i dd i ctl ( a) ambient temperature ( o c ) i dd , i ctl vs. ambient temperature 30 31 32 33 34 35 36 37 -50 0 50 100 p -0.1db (dbm) ambient temperature ( o c ) p -0.1db vs. ambient temperature ( f=0.9ghz, p1-p3 on, v dd =2.85v ) -90 -85 -80 -75 -70 -65 -60 -55 -50 20 22 24 26 28 30 32 -45 o c -20 o c +25 o c +70 o c +90 o c +100 o c 2nd harmonics (dbc) input power (dbm) 2nd harmonics vs. input power ( f=900mhz, p1-p3 on, ctl1=ctl2=0v ) input 2fo=-88dbc -90 -85 -80 -75 -70 -65 -60 -55 -50 20 22 24 26 28 30 32 -45 o c -20 o c +25 o c +70 o c +90 o c +100 o c 3rd harmonics (dbc) input power (dbm) 3rd harmonics vs. input power ( f=900mhz, p1-p3 on, ctl1=ctl2=0v ) input 2fo=-86dbc
NJG1657MD7 - 8 - 0 0.5 1 1.5 2 -50 0 50 100 switching time (us) ambient temperature ( o c ) switching time vs. ambient temperature ( v dd =2.85v ) voltage (arb. unit) time (0.5 sec/div) switching time ( v dd =2.85v, ctl1=0v ) ctl2 port p3 port 1.3 s ! electrical characteristics (with application circuit, loss of external circuit are excluded) 0 10 20 30 40 50 60 10 15 20 25 30 35 40 v dd =2.5v v dd =2.85v v dd =3.2v v dd =4.5v current i dd (ua) input power (dbm) current i dd vs. input power ( f=0.9ghz, p1-p3 on, ctl1=ctl2=0v ) -2.0 -1.5 -1.0 -0.5 0.0 10 15 20 25 30 35 40 v dd =2.5v v dd =2.85v v dd =3.2v v dd =4.5v insertion loss (db) input power (dbm) insertion loss vs. input power ( f=0.9ghz, p1-p3 on, ctl1=ctl2=0v )
NJG1657MD7 - 9 - 1 3 p2 p1 p3 p4 ctl1 ctl2 vdd decoder 2 4 5 6 7 8 9 10 11 14 13 12 sw1 sw3 sw2 sw4 sw5 sw6 2.85v 0/2.6v 0/2.6v 56pf 56pf 56pf 56pf 1000pf ! application circuit ! test pcb layout (top view) losses of pcb, capacitors and connectors parts list precautions [1]the dc blocking capacitors have to be placed at rf terminal of p1, p2, p3, p4 and pc. please choose appropriate capacitance values to the application frequency. [2]to reduce strip line influence on rf characteri stics, please locate bypass capacitors(c5) as close as possible to each terminals. [3]for good isolation, the gnd terminal must be connected to the ground plane of substrate, and through-holes for gnd should be placed near by the pin connection. frequency (ghz) loss (db) 0.9 0.30 1.9 0.49 part id value comment c1~c4 56pf c5 1000pf murata (grm15) pcb: fr-4, t=0.2mm capacitor size: 1005 strip line width: 0.4mm pcb size: 26 x 26mm v dd ctl1 ctl2 gnd c1 c2 c3 c4 c5 p2 p1 p3 p4
NJG1657MD7 - 10 - ! package outline (eqfn14-d7) 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 p roduct , p lease obe y the relatin g law of y ou r countr y . this product may be damaged with electric static 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.
|
