1 gaas mmic spst failsafe switch, dc - 4 ghz general description features functional diagram failsafe operation - on when unpowered wide vdd range: 1.2v to 5v very low on state current: 200 na low insertion loss: 0.7 db high ip3: +52 dbm compact sot26 smt package electrical specifcations t a = +25 c, vdd = +3.3 vdc, vctl = 0/+3.3 vdc (unless otherwise stated) , 50 ohm system typical applications the HMC1055LP2CE is ideal for: ? rfid & electronic toll collection (etc) ? tags, handsets & portables ? ism, wlan, wimax & wibro ? automotive telematics ? test equipment the HMC1055LP2CE is low-cost spst failsafe switch in 2x2mm,8 lead dfn plastic package for use in switching application which require low insertion loss and very low current consumption. with 0.7 db typical loss, these devices can control signals from dc to 4 ghz and are especially suited for if and rf applications including rfid, ism, automotive and battery powered tags and portables. rf1 and is refective open while rf2 is terminated in 50 ohms when off. the switch requires a minimal amount of dc current in the on state, and offers compatibility with cmos and some ttl logic families. the failsafe topology results in the switch being normally on, i.e. low insertion loss from rf1 to rf2, when no dc bias is applied. parameter frequency min. typ. max. units insertion loss dc - 3.0 ghz dc- 4.0 ghz 0.6 1.8 db isolation dc - 2.0 ghz dc - 4.0 ghz 36 28 db db return loss dc - 4.0 ghz 25 db input power for 0.1 db compression vctl = 0/+3.3v 0.5 - 4.0 ghz 28 dbm input third order intercept (two-tone input power = +15 dbm each tone) vctl = 0/+3.3v 0.5 - 4.0 ghz 63 dbm switching characteristics dc - 4.0 ghz trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) 40 50 ns ns v00.0912 HMC1055LP2CE for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com switche s - sps t - sm t
2 return loss vctl=3v rf1 insertion loss vctl=3v vdd=3v return loss vctl=3v rf2 v00.0912 hmc1055clp2ce -5 -4 -3 -2 -1 0 012345 +25c +85c -40c insertion loss (db) frequency (ghz) -35 -30 -25 -20 -15 -10 -5 0 012345 +25c +85c -40c return loss (db) frequency (ghz) gaas mmic spst failsafe switch, dc - 4 ghz return loss vctl=0v rf1 -35 -30 -25 -20 -15 -10 -5 0 012345 +25c +85c -40c return loss (db) frequency (ghz) return loss vctl=0v rf2 isolation vctl=3v vdd=3v -10 -8 -6 -4 -2 0 012345 +25c +85c -40c return loss (db) frequency (ghz) -35 -30 -25 -20 -15 -10 -5 0 012345 +25c +85c -40c return loss (db) frequency (ghz) -70 -60 -50 -40 -30 -20 -10 0 012345 +25c +85c -40c isolation (db) frequency (ghz) for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com switche s - sps t - sm t
3 input p0.1db vs. temperature v00.0912 HMC1055LP2CE conditions vdd - vctl + 1.2 vdc -0.2 vdc < vdd - vctl < +0.4 vdc rf1 - rf2 off on operating conditions vdd & vctl = 0 vdc to +3 vdc; vctl_max = vdd + 0.2 vdc; idd & ictl = 0.1 a, typical gaas mmic spst failsafe switch, dc - 4 ghz 0 5 10 15 20 25 30 35 0.5 1 1.5 2 2.5 3 3.5 4 +25c +85c -40c input p0.1db (dbm) frequency (ghz) input ip3 vs. temperature 50 55 60 65 70 75 80 1234 +25c +85c -40c input ip3 (dbm) frequency (ghz) for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com switche s - sps t - sm t
4 absolute maximum ratings rf input power (vctl = 0/+3.3v) +34 dbm supply voltage (vdd) +6.0 vdc control voltage range (vctl) -0.2 to +(vdd + 0.2) vdc channel temperature 150 c continuous pdiss (t= 85 c) (derate 6.67 mw/ c above 85c) 0.88 w thermal resistance 74 c/w storage temperature -65 to +150 c operating temperature -40 to +85 c esd sensitivity (hbm) class 1a dc blocks are required at ports rf1 and rf2. electrostatic sensitive device observe handling precautions outline drawing notes: 1. package body material: low stress injection molded plastic silica and silicon impregnated. 2. lead and ground paddle material: copper alloy. 3. lead and ground paddle plating: 100% matte tin. 4. dimensions are in inches [millimeters]. 5. lead spacing tolerance is non-cumulative. 6. characters to be helvetica medium, .016 high, or laser mark located approx. as shown. 7. pad burr length shall be 0.15mm max. pad burr height shall be 0.05mm max. 8. package warp shall not exceed 0.05mm 9. all ground leads and ground paddle must be soldered to pcb rf ground. 10. refer to hittite application note for suggested pcb land patte package information part number package body material lead finish msl rating package marking hmc1055 rohs-compliant low stress injection molded plastic 100% matte sn msl1 [1] 1055 [[1] max peak refow temperature of 260 c v00.0912 HMC1055LP2CE gaas mmic spst failsafe switch, dc - 4 ghz for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com switche s - sps t - sm t
5 typical application circuit note: 1. dc blocking capacitors are required for each rf port as shown. capacitor value determines lowest frequency of operation. pin descriptions pin number function description interface schematic 1, 4 n/c 2, 3 gnd these pins and the exposed ground paddle must be connected to rf ground. 5,8 rf1,rf2 these pins are dc coupled and matched to 50 ohms. blocking capacitors are required. 6 vdd supply voltage 7 vctl see truth and control voltage tables. v00.0912 HMC1055LP2CE gaas mmic spst failsafe switch, dc - 4 ghz for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com switche s - sps t - sm t
6 evaluation pcb the circuit board used in the fnal 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 eval01-hmc1055lp2c item description j1 - j2 pcb mount sma rf connector j3 - j4 dc pin c1 1,000 pf capacitor, 0402 pkg. c2 - c3 330 pf capacitor, 0402 pkg. u1 HMC1055LP2CE spst switch pcb [2] 600-00215-00 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 v00.0912 HMC1055LP2CE gaas mmic spst failsafe switch, dc - 4 ghz for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com switche s - sps t - sm t
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