2 watt cellular t/r and antenna changeover switch dc - 2.0 ghz sw-358, 359a v2.00 m/a-com, inc. north america: tel. (800) 366-2266 n asia/paci?: tel. +81 (03) 3226-1671 n europe: tel. +44 (1344) 869 595 fax (800) 618-8883 fax +81 (03) 3226-1451 fax +44 (1344) 300 020 1 speci?ations subject to change without notice. features low cost plastic ssop-8 package 1 both positive and/or negative 3 to 10 v control low insertion loss: 0.4 db very high intercept point: 55 dbm ip 3 very low power consumption: 50? for amps, namps, etacs, nmt, gsm, pcn, pdc, and dect applications description the sw-358 3 and sw-359a 4 are gaas mmic spdt switches in low cost ssop 8-lead surface mount plastic packages. these switches are ideally suited for use where very low distortion and low loss are required. the sw-358 and the sw-359a can be operated with negative, positive, or a combination of positive/negative control voltages. typical application is an 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-358 can be used as a conventional t/r switch, or as an antenna diversity switch. both switches can be used for power applications up to 2 watts in systems such as cellular, pcm, gsm, and other analog/digital wireless communication systems. the sw-358 and sw-359a are fabricated with monolithic gaas mmics using a mature 1 micron process. the process features full passivation for increased performance and reliability. sw-358 sw-359a parameter test conditions units min. typ. max. min. typ. max. insertion loss dc - 0.5 ghz db 0.35 0.4 0.35 0.4 dc - 1.0 ghz db 0.45 0.6 0.45 0.6 dc - 2.0 ghz db 1.0 1.2 1.0 1.2 isolation dc - 0.5 ghz db 20 23 20 23 dc - 1.0 ghz db 15 17 15 17 dc - 2.0 ghz db 8 10 8 10 vswr dc - 1.0 ghz 1.2:1 1.4:1 1.2:1 1.4:1 dc - 2.0 ghz 1.6:1 1.8:1 1.6:1 1.8:1 trise, tfall 10%-90% rf, 90% - 10% rf ns 38 38 ton , toff 50% control to 90% rf, 50% control to 10% rf ns 42 42 transients in-band mv 30 30 1 db compression input power, (5v supply/control) 0.9 ghz dbm 35 35 input power, (8v supply/control) 0.9 ghz dbm 37 37 input ip 3 2-tone, 5 mhz spacing, 0.9 ghz dbm 55 55 +10 dbm (+13 dbm total) input ip 2 2-tone, 5 mhz spacing, 0.9 ghz dbm 98 98 +10 dbm (+13 dbm total) t/r intermodulation tx tone +30 dbm @ 830 mhz (5v supply/control) dbm -45 -45 products 5 rx spurious +10 dbm @ 785 mhz (8.5v supply/control) dbm -78 -78 electrical speci?ations, t a = +25? 2 .0086 -.0150 (0.21-0.38) .291-.323 (7.39-8.20) pin 8 orientation mark pin 1 .0256(0.65) bsc. .004 (0.10) 0.113-0.123 (2.87-3.12) .002-.008 (0.05-0.20) .079 max (2.01) 8?max .022-.037 (0.56-0.94) 0.197-0.220 (5.00-5.59) .005-.009 (0.13-0.23) .010(0.25) m b m .010(0.25) m c a mb s -b- -c- -a- ssop-8 dimensions in ( ) are in mm. unless otherwise noted: .xxx 56 0.010 (.xx 56 0.25) l l l l l l 1. available in tape and reel packaging. 2. all speci?ations apply when operated with bias voltages of 0 and 5v at 1 ghz in a 50 ohm system, unless otherwise speci?d 3. sw-358 replaces sw-031. 4. sw-359a replaces sw-030. 5. see diagram on following page for test set up.
2 watt cellular t/r and antenna changeover switch sw-358, sw-359a m/a-com, inc. north america: tel. (800) 366-2266 n asia/paci?: tel. +81 (03) 3226-1671 n europe: tel. +44 (1344) 869 595 fax (800) 618-8883 fax +81 (03) 3226-1451 fax +44 (1344) 300 020 2 speci?ations subject to change without notice. v2.00 parameter absolute maximum max. input power (0.5 - 2.5ghz) 3 v control and supply +34dbm 5 v control and supply +37dbm 9 v control and supply +40dbm power dissipation 1.0w operating temperature -40? to +85? storage temperature -65? to +150? thermal resistance 2 u jc = 87?/w absolute maximum ratings 1 typical performance @ +25? note: 1. operation of this device above any one of these parameters may cause permanent damage. 2. thermal resistance is given for t a = +25 c. tcase is the temperature of leads 1 and 4. isolation vs frequency insertion loss vs frequency loss (db) +85? +25? -40? 0.1 db compression 1.0 db compression 0 0.5 1.0 1.5 2.0 2.5 0 0.5 1.0 1.5 2.0 2.5 0 0.5 1.0 1.5 2.0 2.5 2.0 1.5 1.0 0.5 0.0 isolation (db) 40 35 30 25 20 15 10 5 0 frequency (ghz) frequency (ghz) vswr vs frequency 2.0 1.8 1.6 1.4 1.2 1.0 vswr frequency (ghz) 345678910 compression vs control voltage (900 mhz) 40 30 20 10 0 compression (dbm) control voltage (volts) * if speci? reel size is required, consult factory for part number assignment. ordering information part number package sw-358 pin ssop 8 lead plastic sw-358tr forward tape & reel* sw-358rtr reverse tape & reel* sw-359a pin ssop 8 lead plastic sw-359atr forward tape & reel* sw-359artr reverse tape & reel* two tone ip 3 measurements supply input 3rd order ip 3 second & control power intermodulation (dbm) harmonic voltage (dbm) products (dbc) (dbc) 0, 3 v +27 -33 +43 -54 0, 5 v +27 -38 +46 -63 0, 8 v +27 -66 +60 -65 0, 10 v +27 -65 +60 -67 0, 3 v +28 -33 +45 -55 0, 5 v +28 -35 +45 -63 0, 8 v +28 -64 +60 -68 0, 10 v +28 -63 +60 -66 0, 3 v +29 -32 +45 -51 0, 5 v +29 -36 +47 -64 0, 8 v +29 -62 +60 -67 0, 10 v +29 -63 +61 -67 0, 3 v +30 -33 +46 -51 0, 5 v +30 -31 +45 -59 0, 8 v +30 -54 +57 -67 0, 10 v +30 -62 +61 -67
v2.00 2 watt cellular t/r and antenna changeover switch sw-358, sw-359a m/a-com, inc. north america: tel. (800) 366-2266 n asia/paci?: tel. +81 (03) 3226-1671 n europe: tel. +44 (1344) 869 595 fax (800) 618-8883 fax +81 (03) 3226-1451 fax +44 (1344) 300 020 3 speci?ations subject to change without notice. mode v cc control input a control input b rfc - rf1 rfc - rf2 0 ?.2 v v cc ?.2 v on off positve control and supply 1 +3 to +8.5 v v cc ?.2 v 0 ?.2 v off on -v v cc on off positive supply and +3 to +8.5 v positive/ negative control 1,2 v cc -v off on 0 ?.2 v -3 v to -8.5 v off on negative control 3 0 v (gnd) -3 v -8.5 v 0 ?.2 v on off sw-358 voltage selection truth table note: 1. external dc blocking capacitors are required on all rf ports. 2. |-v| + v cc 8.5 volts. 3. if negative control is used, dc blocking capacitors are not required on the rf ports. mode control input a control input b rfc - rf1 rfc - rf2 0 ?.2 v +3 to +8.5 v on off positve control 1 +3 to +8.5 v 0 ?.2 v off on -v +v on off positive / negative control 1,2 +v -v off on 0 ?.2 v -3 v to -8.5 v off on negative control 3 -3 v to -8.5 v 0 ?.2 v on off sw-359a voltage selection truth table note: 1. external dc blocking capacitors are required on all rf ports. 2. | -v | +v 8.5. 3. if negative control is used, dc blocking capacitors are not required on the rf ports. functional schematics rfc gnd v cc gnd b a rf2 rf1 sw-358 rfc gnd nc gnd b a rf2 rf1 sw-359a pin 1 pin 1 pin 8
2 watt cellular t/r and antenna changeover switch sw-358, sw-359a v2.00 m/a-com, inc. north america: tel. (800) 366-2266 n asia/paci?: tel. +81 (03) 3226-1671 n europe: tel. +44 (1344) 869 595 fax (800) 618-8883 fax +81 (03) 3226-1451 fax +44 (1344) 300 020 4 speci?ations subject to change without notice. t/r intermodulation products test set-up this set-up tests the intermodulation product at the receiver frequency of 875 mhz generated by the intermodulation of the 1w tx signal at 830 mhz (f1) and a rx spurious at 785 mhz (f2). a +10 dbm spurious signal is used in order to overcome measure- ment sensitivity. to calculate the intermodulation product, at the rf2 port, for a different tx power level (p1) and a different rx spurious level (p2), use the following formula: p spur (@ rf2) = (2p1 + p2) - 148 dbm to calculate the intermodulation product, at the rf1 port, for a different tx power level (p1) and a different rx spurious level (p2), use the following formula: p spur (@ rf1) = (2p1 + p2) - 130 dbm rx spurious +10 dbm (p2) 785 mhz (f2) 875 mhz ?ter isolator 40 db v cc ( sw-358 only) 875 mhz intermodulation spurious (p spur ) isolator 20db rfc rf1 dut rf2 ctl a ctl b tx tone 1w output power(p1) 830 mhz (f1) spectrum analyzer 875 mhz (2f1-f2)
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