3 volt, 2 watt cellular t/r changeover switch, dc - 2.0 ghz sw-392 m/a-com division of amp incorporated q north america: tel. (800) 366-2266, fax (800) 618-8883 q asia/pacific: tel.+85 2 2111 8088, fax +85 2 2111 8087 q europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 www.macom.com amp and connecting at a higher level are trademarks. specifications subject to change without notice. v2.00 features low cost plastic sot-26 package low insertion loss < 0.6 db @ 900 mhz low power consumption < 20 a @ +3v very high intercept point: 52 dbm ip 3 both positive and negative 3 to 8 v control for amps, namps, etacs, nmt, gsm, pcn, pdc and dect applications sot-26 1 electrical s p ecifications: t a = +25c 1 3 volt, 2 watt cellular t/r chan g eover switch dc - 2.0 ghz sw-392 parameter test conditions units min. typ. max. insertion loss dc - 1.0 ghz db 0.55 0.65 1.0 - 2.0 ghz db 0.8 1.0 isolation dc - 1.0 ghz db 15 17 1.0 - 2.0 ghz db 8 10 vswr dc - 2.0 ghz 1.3:1 1 db compression input power (3v control) 0.9 ghz dbm 35 input power (5v control) 0.9 ghz dbm 37 t rise , t fall 10% to 90% rf, 90% to 10% rf m s 15 t on , t off 50% control to 90% rf, control to 10% rf m s 20 t ransients in-band mv 60 input ip 2 2-tone, 5 mhz spacing, 0.9 ghz dbm 95 +10 dbm (+13 dbm total) input ip 3 2-tone, 5 mhz spacing, 0.9 ghz dbm 52 +10 dbm (+13 dbm total) descri p tion m/a-coms sw-392 is a gaas monolithic switch in a low cost sot-26 surface mount plastic package. the sw-392 is ideally suited for applications where very low power consumption (<20a @ 3v), low intermodulation products, very small size and low cost required. typical application is an internal/exter- nal antenna select switch for portable telephones and data radios. in addition, because of its low loss, good isolation, and inherent speed, the sw-392 can be used in power applications up to 2 watts in systems such as cellular, pcn, gsm and other analog/ digital wireless communications systems. the sw-392 is fabricated using a mature 1-micron gate length gaas mesfet process. the process features full chip passiva- tion for increased performance and reliability. orderin g information part number package sw-392 pin sot-26 plastic package SW-392TR forward tape and reel 1 1. refer to application note m513 for reel size information. 1. all measurements at 1 ghz in a 50 w system unless otherwise specified. loss varies at 0.003 db/c. pin 1 xx#y 1. dimensions are in: inches/mm
3 volt, 2 watt cellular t/r changeover switch, dc - 2.0 ghz sw-392 m/a-com division of amp incorporated q north america: tel. (800) 366-2266, fax (800) 618-8883 q asia/pacific: tel.+85 2 2111 8088, fax +85 2 2111 8087 q europe: tel. +44 (1344) 869 595, fax+44 (1344) 300 020 www.macom.com amp and connecting at a higher level are trademarks. specifications subject to change without notice. v2.00 0 5 10 15 20 25 30 35 40 -3 -4 -5 -6 -7 -8 control voltage (volts) compression (dbm) &2035(66,21 32,17 yv &21752/ 92/7$*( # 0+] 0.1db 1db isolation vs frequency -50 -40 -30 -20 -10 0 00.511.522.5 frequency (ghz) isolation (db) vswr vs frequency 1 1.2 1.4 1.6 1.8 2 0 0.5 1 1.5 2 2.5 3 frequency (ghz) vswr input output insertion loss vs frequency -2 -1.5 -1 -0.5 0 0 0.5 1 1.5 2 2.5 frequency (ghz) insertion loss (db) parameter absolute maximum max. input power (0.5 - 2.5 ghz) 3v control +34 dbm 5v control +37 dbm operating temperature -40c to +85c storage temperature -65c to +150c thermal temperature q jc = +87c/w absolute maximum ratin g s 1 1. exceeding any one or a combination of these limits may cause permanent damage. 2. thermal resistance is given for t a = +25c. t yp ical performance curves insertion loss vs. frequency vswr vs. frequency isolation vs frequency functional schematic mode (control) control a control b rfc - rf1 rfc - rf2 postive 1 00.2v +3 to +8v +3v to +8v 00.2v off on on off postive/ negative 1,2 -vc0.2v +vc +vc -vc0.2v on off off on negative 3 00.2v -3v to -8v -3v to -8v 00.2v on off off on truth table 1. external dc blocking capacitors are required on all rf ports. 2. |-vc|+ vc < 8 v. 3. if negative control is used, dc blocking capacitors are not re- quired on rf ports. two tone ip 3 measurements control voltage (vdc) input power (dbm) 3rd order intermodulation products (dbc) ip 3 (dbm) second harmonic (dbc) 0,3 27 33 43 64 0,5 27 66 60 61 0,8 27 66 60 59 0,3 28 31 43 61 0,5 28 61 58 59 0,8 28 66 61 60 0,3 29 31 44 59 0,5 29 55 57 58 0,8 29 66 62 61 0,3 30 30 45 53 0,5 30 47 54 59 0,8 30 65 63 58 compression point vs control voltage @ 900mhz rf1 gnd rf2 va rfc vb pin 1
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