switches - smt 10 10 - 26 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com hmc194ms8 / 194ms8e gaas mmic spdt switch dc - 3 ghz v06.0608 general description features functional diagram ultra small package: msop8 high isolation: 50 db positive control: 0/+3v to 0/+7v electrical specifi cations, t a = +25 c, vctl = 0/+5 vdc, 50 ohm system typical applications the hmc194ms8 /hmc194ms8e is ideal for: ? cellular/pcs base stations ? portable wireless ? mmds & wirelesslan the hmc194ms8 & hmc194ms8e are low-cost spdt switches in 8-lead msop packages for use in applications which require high isolation between two rf paths. the devices can control signals from dc to 3 ghz and have been optimized to provide extremely high isolation with minimal insertion loss in medium and low power applications. on chip circuitry allows positive voltage control operation at very low dc cur- rents with control inputs compatible with cmos and most ttl logic families. rf1 and rf2 are refl ective opens when off. parameter frequency min. typ. max. units insertion loss dc - 2.0 ghz dc - 2.5 ghz dc - 3.0 ghz 0.7 0.8 0.8 0.9 1.0 1.1 db db db isolation rf1 / rf2 rf1 / rf2 dc - 1.0 ghz dc - 2.0 ghz dc - 2.5 ghz dc - 3.0 ghz 48 / 50 40 / 42 31 24 52 / 54 44 / 46 35 28 db db db db return loss dc - 2.0 ghz dc - 2.5 ghz 24 22 db db input power for 1 db compression 0/+5v control 0.5 - 3.0 ghz 24 28 dbm input third order intercept (two-tone input power = +7 dbm each tone) 0/+5v control 0.5 - 3.0 ghz 49 53 dbm switching characteristics dc - 3.0 ghz trise, tfall (10/90% rf) ton , toff (50% ctl to 10/90% rf) 10 24 ns ns
switches - smt 10 10 - 27 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com insertion loss isolation return loss input 0.1 and 1.0 db compression vs. control voltage input third order intercept point vs. control voltage -3 -2.5 -2 -1.5 -1 -0.5 0 0123 insertion loss (db) frequency (ghz) -40 -30 -20 -10 0 0123 s11 s22 return loss (db) frequency (ghz) 0 10 20 30 40 50 60 357 900 mhz 1900 mhz 3000 mhz third order intercept (dbm) control input (v) 0 4 8 12 16 20 24 28 32 357 p0.1db at 900 mhz p1db at 900 mhz p0.1db at 1900 mhz p1db at 1900 mhz p0.1db at 3000 mhz p1db at 3000 mhz power for 0.1db & 1db compression control input (v) -70 -60 -50 -40 -30 -20 -10 0 0123 rf1 rf2 isolation (db) frequency (ghz) truth table *control input voltage tolerances are 0.2 vdc. control input* control current signal path state a (vdc) b (vdc) ia (ua) ib (ua) rf to rf1 rf to rf2 0+3-0.05+0.05onoff +3 0 +0.05 -0.05 off on 0+5-2+2onoff +5 0 +2 -2 off on 0+7-15+15onoff +7 0 +15 -15 off on hmc194ms8/ hmc194ms8 v06.0608 gaas mmic spdt switch dc - 3 ghz
switches - smt 10 10 - 28 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com absolute maximum ratings outline drawing rf input power (vctl= 0v/+5v) +27 dbm control voltage range (a & b) -0.2 to +7.5 vdc hot switch power level (vctl= 0v/+5v) +24 dbm channel temperature 150 c continuous pdiss (t= 85 c) (derate 5.5 mw/c above 85 c) 360 mw thermal resistance 180 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c esd sensitivity (hbm) class 1b electrostatic sensitive device observe handling precautions note: dc blocking capacitors are required at ports rfc, rf1 and rf2. their value will determine the lowest transmission frequency. part number package body material lead finish msl rating package marking [3] hmc194ms8 low stress injection molded plastic sn/pb solder msl1 [1] h194 xxxx hmc194ms8e rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] h194 xxxx [1] max peak refl ow temperature of 235 c [2] max peak refl ow temperature of 260 c [3] 4-digit lot number xxxx package information notes: 1. leadframe material: copper alloy 2. dimensions are in inches [millimeters]. 3. dimension does not include moldflash of 0.15mm per side. 4. dimension does not include moldflash of 0.25mm per side. 5. all ground leads must be soldered to pcb rf ground. 6. classified as moisture sensitivity level (msl) 1. hmc194ms8/ hmc194ms8 v06.0608 gaas mmic spdt switch dc - 3 ghz
switches - smt 10 10 - 29 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com typical application circuit notes: 1. set logic gate and switch vdd = +3v to +5v and use hct series logic to provide a ttl driver interface. 2. control inputs a/b can be driven directly with cmos logic (hc) with vdd of 3 to 7 volts applied to the cmos logic gates. 3. dc blocking capacitors are required for each rf port as shown. capacitor value determines lowest frequency of operation. 4. highest rf signal power capability is achieved with control set to 0/+7v. hmc194ms8/ hmc194ms8 v06.0608 gaas mmic spdt switch dc - 3 ghz
switches - smt 10 10 - 30 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com evaluation circuit board the circuit board used in the fi nal application should be generated with proper rf circuit design techniques. signal lines at the rf port should have 50 ohm impedance and the package ground leads should be connected directly to the ground plane similar to that shown above. the evalua- tion circuit board shown above is available from hittite microwave corporation upon request. list of materials for evaluation pcb 105143 [1] item description j1 - j3 pc mount sma rf connector j4 - j6 dc pin c1 - c3 100 pf capacitor, 0402 pkg. r1, r2 100 resistor, 0402 pkg. u1 hmc194ms8 / hmc194ms8e spdt switch pcb [2] 107821 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 hmc194ms8/ hmc194ms8 v06.0608 gaas mmic spdt switch dc - 3 ghz
switches - smt 10 10 - 31 for price, delivery, and to place orders, please contact hittite microwave corporation: 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com notes hmc194ms8/ hmc194ms8 v06.0608 gaas mmic spdt switch dc - 3 ghz
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