features n low cost plastic sc - 70 (sot - 363) package n low insertion loss < 0.3 db @ 900 mhz n low power consumption < 15 m a @ +2.3 volts n positive or negative 2.3 to 8 volt control description m/a - com?s sw - 456 is a gaas monolithic switch in a low co st sc - 70 (sot - 363) surface mount plastic package. the sw - 456 is ideally suited for applications where very low power consumptio n, low insertion loss, very small size and low cost are required. typical application is in dual band systems where switching b etween small signal components is required such as filter banks, single - band lna?s, converters, etc. the sw - 456 can be used in applications up to 0.25 watts in systems such as cellular, pcs, dcs1800, gsm, cdma, w - cdma and other analog/digital wireless com munication systems. the sw - 456 is fabricated using a mature 0.8 micron gaas mesfet process. the process features full passivat ion for performance and reliability. gaas spdt switch dc - 3.0 ghz sw - 456 pin 1 rf1 gnd rf2 v1 rfc v2 1000 pf 1000 pf 1000 pf functional schematic positive control voltage rf1 pin 1 gnd rf2 v1 rfc v2 functional schematic negative control voltage handling procedures the following precautions should be observed to avoid damage: static sensitivity gallium arsenide integrate d circuits are esd sensitive and can be damaged by static electricity. proper esd techniques should be used when handling these devices. truth table pin configuration pin function description 1 rf1 rf in/out 2 gnd rf ground 3 rf2 rf in/out 4 v2 v ctrl2 5 rfc rf common 6 v1 v ctrl1 mode (control) v1 v2 rfc - rf1 rfc - rf2 positive 1 0 0.2 v +2.3 to +8 v off on +2.3 to +8 v 0 0.2 v on off negative 2 0 0.2 v - 2.3 v to ? 8 v on off - 2.3 v to - 8 v 0 0.2 v off on 1. external dc blocking capacitors are required on all rf ports. 1000 pf capacitors used for positive control voltage. for higher frequency operation, smaller value dc blocking capaci tors can be substituted. 2. if negative control is used, dc blocking capacitors are not required on rf ports.
gaas spdt switch, dc - 3.0 ghz sw - 456 specifications subject to change without notice. n north america: tel. (800) 366 - 2266, fax (800) 618 - 8883 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 2.00 2 electrical specifications: t a = 25 c , v ctl = 0, - 2.3 volts (unless otherwise specified) parameter test conditions units min. typ. max. insertion loss dc - 1 ghz db 0.35 0.5 1 - 2 ghz db 0.45 0.6 2 - 3 ghz db 0.56 0.8 isolation dc - 1 ghz db 20 22 1 - 2 ghz db 15 17 2 - 3 ghz db 10 12 v swr dc - 3 ghz 1.2:1 1.4:1 p 1db (2.3v supply) 500 mhz - 3 ghz dbm 21 p 1db (3v supply) 500 mhz - 3 ghz dbm 27 input ip 2 2 - tone 900 mhz, 5 mhz spacing (3.0 v) dbm 81 input ip 3 2 - tone 900 mhz, 5 mhz spacing (3.0 v) dbm 52 t rise, t fall 10% to 90% rf, 90% to 10% rf ns 25 t on, t off 50% control to 90% rf, control to 10% rf ns 25 t ransients in - band mv 25 gate leakage v ctl = 2.3 v m a 4 15 absolute maximum ratings 1 parameter absolute maximum max input power (0.5 - 3.0 ghz) 3 v control +30 dbm 5 v control +33 dbm operating voltage +8.5 volts operating temperature - 40 c to +85 c storage temperature - 65 c to +150 c 1. exceeding any one or combination of these limits may cause permanent damage.
gaas spdt switch, dc - 3.0 ghz sw - 456 specifications subject to change without notice. n north america: tel. (800) 366 - 2266, fax (800) 618 - 8883 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 2.00 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 frequency (ghz) 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 frequency (ghz) +85c -40c +25c -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 frequency (ghz) +85c +25c -40c -40.0 -35.0 -30.0 -25.0 -20.0 -15.0 -10.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 frequency (ghz) -1.0 -0.9 -0.8 -0.7 -0.6 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 frequency (ghz) 0 -50.0 -45.0 -40.0 -35.0 -30.0 -25.0 -20.0 -15.0 -10.0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 frequency (ghz) typical performance curves (cont?d) 3 insertion loss vs. frequency over temperature vswr over temperature isolation vs. frequency over temperature insertion loss vs. frequency (+2.3 v control, 1000 pf capacitor on rf ports) isolation vs. frequency (+2.3 v control, 1000 pf capacitor on rf ports) vswr vs. frequency (+2.3 v control, 1000 pf capacitor on rf ports)
gaas spdt switch, dc - 3.0 ghz sw - 456 specifications subject to change without notice. n north america: tel. (800) 366 - 2266, fax (800) 618 - 8883 n asia/pacific: tel.+ 81 - 44 - 844 - 8296 , fax + 81 - 44 - 844 - 8298 n europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 visit www.macom.com for additional data sheets and product information. v 2.00 ordering information 1. if specific reel size is required, consult factory for part number assignment. part number package sw - 456 pin sc - 70 (sot - 363) plastic package sw - 456tr forward tape and reel 1 sw - 456tr 3000 3000 tape and reel 1 sw - 456smb sample board 4 sc - 70 (sot - 363) plastic package 1 1. all dimensions are jedec mo - 203 - ab issue a and are shown as in/mm. dim measurement (mm) min. nom. max. a - - 1.10 a1 0 - 0.10 a2 0.70 0.90 1.00 b 0.15 - 0.30 c 0.08 - 0.25 d - 2.00 basic - e - 0.65 basic - e - 2.10 basic - e1 - 1.25 basic - l - 0.42 ref. - sot - 26 pin 1 pin 6 d e e e a a1 b c l a e1 a2
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