3 watt cellular t/r and an tenna changeover switch dc - 3.0 ghz rev. v5 SW-425 ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.43537383 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 1 advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. features ? low cost plastic sot-26 package ? low insertion loss: < 0.6 db @ 1900 mhz ? low power consumption: <20a @ +3v ? very high intercept point: 53 dbm ip3 ? both positive and negative 2.5 to 8 v control ? for cdma, w-cdma, tdma, gsm, pcs and dcs applications description m/a-com?s SW-425 is a gaas monolithic switch in a low cost sot-26 surface mount plastic package. the SW-425 is ideally suited for applications where very low power consumption (<10a@5v), low intermodulation products and very small size are required. typical applications include internal/external antenna select switch for portable telephones and data radios. in addition, because of its low loss, good isolation and inherent speed, the SW-425 can be used as a conventional t/r switch or as an antenna diversity switch. the SW-425 can be used in power applications up to 3 watts in systems such as cellular pcs, cdma, w-cdma, tdma, gsm and other analog/digital wireless communications systems. the SW-425 is fabricated using m/a-com?s 0.5 micron gate length gaas phemt process. the process features full chip passivation for increased performance and reliability. functional diagram 6 5 4 1 2 3 pin configuration pin no. function pin no. function 1 rf1 4 vb 2 ground 5 rf common 3 rf2 6 va absolute maximum ratings 2 parameter absolute maximum input power (0.5?3.0 ghz) 3 v control 5 v control +36 dbm +38 dbm operating temperature -40c to +85c storage temperature -65c to +150c 2. exceeding any one or combination of these limits may cause permanent damage to this device . part number package SW-425 pin bulk packaging SW-425tr 1000 piece reel ordering information 1 1. reference application note m513 for reel size information. mode (control) control a control b rfc - rf1 rfc - rf2 positive 4 0 + 0.2 v +2.5 to +8 v +2.5 to +8 v 0 + 0.2 v off on on off negative 5 0 + 0.2 v -2.5 to -8 v -2.5 to -8 v 0 + 0.2 v on off off on positive/ negative 3,4 -vc + 0.2 v +vc +vc -vc + 0.2 v off on on off truth table 3. external dc blocking capacitors are required on all rf ports. 39 pf capacitors can be used fo r positive control voltage. 4. [-vctl], vctl < 8 v 5. if negative control is used, dc blocking capacitors are not required on rf ports.
3 watt cellular t/r and an tenna changeover switch dc - 3.0 ghz rev. v5 SW-425 ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.43537383 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 2 advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. electrical specifications: t a = +25c parameter test conditions units min typ max insertion loss dc - 1 ghz 1 - 2 ghz 2 - 3 ghz db db db ? ? ? 0.4 0.55 0.7 0.5 0.65 0.8 isolation dc - 1 ghz 1 - 2 ghz 2 - 3 ghz db db db 18 13 10 20 15 12 ? ? ? vswr dc - 3 ghz ratio ? 1.2:1 1.4:1 p1db (3 v supply) 500 mhz - 3 ghz dbm 32 34 ? p1db (5 v supply) 500 mhz - 3 ghz dbm 34 36 ? input ip2 two-tone, 5 mhz spacing, +10 dbm (+13 dbm total) v ctl = 3 v 0.9 ghz dbm 62 70 ? input ip3 two-tone, 5 mhz spacing, +10 dbm (+13 dbm total) v ctl = 3 v 0.9 ghz dbm 48 53 ? 2nd harmonics pin 30 dbm [v ctl ] = 3 v pin 33 dbm [v ctl ] = 5 v dbc dbc 65 65 70 75 ? ? 3rd harmonics pin 30 dbm [v ctl ] = 3 v pin 33 dbm [v ctl ] = 5 v dbc dbc 45 65 48 75 ? ? trise, tfall 10% to 90% rf, 90% to 10% rf ns ? 60 ? gate leakage current v ctl = 3 v a ? 10 20 ton, toff 50% control to 90% rf, control to 10% rf ns ? 20 ? transients in-band mv ? 20 ? handling procedures please observe the following precautions to avoid damage: static sensitivity gallium arsenide integrated circuits are sensitive to electrostatic discharge (esd) and can be damaged by static electricity. proper esd control techniques should be used when handling these devices. sot-26
3 watt cellular t/r and an tenna changeover switch dc - 3.0 ghz rev. v5 SW-425 ? north america tel: 800.366.2266 ? europe tel: +353.21.244.6400 ? india tel: +91.80.43537383 ? china tel: +86.21.2407.1588 visit www.macomtech.com for addi tional data sheets and product information. m/a-com technology solutions inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice. 3 advanced: data sheets contain information regarding a product m/a-com technology solutions is considering for development. performance is based on target specifications, simulated results, and/or prototype measurements. commitment to develop is not guaranteed. preliminary: data sheets contain information regarding a product m/a-com technology solutions has under development. performance is based on engineering tests. specifications are typical. mechanical outline has been fixed. engineering samples and/or test data may be available. commitment to produce in volume is not guaranteed. typical performance curves input compression point vs. v ctl @ 900 mhz 2nd harmonic vs. v ctl @ = 900 mhz insertion loss 0.0 0.2 0.4 0.6 0.8 1.0 0.00.51.01.52.02.53.0 +85c +25c -40c frequency (ghz) 10 15 20 25 30 35 40 45 50 0.0 0.5 1.0 1.5 2.0 2.5 3.0 frequency (ghz) isolation vswr 1.0 1.1 1.2 1.3 1.4 1.5 0.00.51.01.52.02.53.0 +85c +25c -40c frequency (ghz) 20 22 24 26 28 30 32 34 36 38 40 2.53.03.54.04.55.05.56.06.57.07.58.0 p0.1db (dbm) p1db (dbm) control voltage (vdc) 55 60 65 70 75 80 85 90 2345678 34dbm 33dbm 31dbm 30dbm 29dbm 28dbm vctl (v) 30 40 50 60 70 80 90 2345678 34dbm 33dbm 31dbm 30dbm 29dbm 28dbm vctl (v) 3rd harmonic vs. v ctl @ = 900 mhz
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