switches - smt 8 8 - 256 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 v03.0805 gaas mmic 10w t/r switch, 824 - 894 mhz* general description features functional diagram low insertion loss: 0.6 db high iip3: +65 dbm high input p0.1 db: +40 dbm tx positive control: 0/+5v to 0/+8v ultra small package: sot26 electrical specifications, t a = +25 c, vctl = 0/+8 vdc, 50 ohm system typical applications the hmc446 / hmc446E is ideal for: ? ism/cellular portables/handsets ? automotive telematic applications ? mobile radio the hmc446 & hmc446E are low-cost spdt swit- ches in 6-lead sot26 packages for use in transmit- receive applications which require very low distortion at high signal power levels, up to 10 watts. the device can control signals from 824 - 894 mhz* and is especially suited for cellular booster and auto- motive telematic applications. the design provides exceptional p0.1 db of +40 dbm and +65 dbm iip3 on the transmit (tx) port. the tx port is a re ective open when off while the rx port is a re ective short when off. on-chip circuitry allows single positive supply operation at very low dc current with a single control input (vctl). parameter frequency* min. typ. max. units insertion loss tx - rfc rfc - rx 824 - 849 mhz 824 - 894 mhz 0.6 0.6 0.9 1.0 db db isolation tx - rfc rfc - rx 824 - 849 mhz 824 - 894 mhz 18 29 22 35 db db return loss tx - rfc rfc - rx 824 - 849 mhz 824 - 894 mhz 13 17 db db input power for 0.1 db compression tx - rfc rfc - rx 824 - 849 mhz 824 - 894 mhz 38 28 40 30 dbm dbm input third order intercept (two-tone input power = +19 dbm each tone) tx - rfc rfc - rx 824 - 849 mhz 824 - 894 mhz 65 52 dbm dbm switching characteristics 824 - 894 mhz trise, tfall (10/90% rf) ton, toff (50% ctl to 10/90% rf) 4 90 ns ns * external component values can be adjusted to enable hmc446 to operate in other frequency bands. contact hmc with your specific requirement. hmc446 / 446E
switches - smt 8 8 - 257 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 input power compression @ 849 mhz, vdd = 8.0v return loss insertion loss vs. temperature, tx isolation input power compression @ 849 mhz, vdd = 5.0v insertion loss vs. temperature, rx v03.0805 gaas mmic 10w t/r switch, 824 - 894 mhz* hmc446 / 446E -3 -2.5 -2 -1.5 -1 -0.5 0 0.75 0.8 0.85 0.9 tx, +25c tx, +85c tx, -40c insertion loss (db) frequency (ghz) -2 -1.5 -1 -0.5 0 10 15 20 25 30 35 40 tx rx insertion loss (db) input power (dbm) -2 -1.5 -1 -0.5 0 10 15 20 25 30 35 40 tx rx insertion loss (db) input power (dbm) -25 -20 -15 -10 -5 0 0.75 0.8 0.85 0.9 tx, input tx, output rx, input rx, output return loss (db) frequency (ghz) -40 -35 -30 -25 -20 -15 -10 -5 0 0.75 0.8 0.85 0.9 rfc to tx rfc to rx isolation (db) frequency (ghz) -3 -2.5 -2 -1.5 -1 -0.5 0 0.75 0.8 0.85 0.9 rx, +25c rx, +85c rx, -40c insertion loss (db) frequency (ghz)
switches - smt 8 8 - 258 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 max. input power (vdd = +8v, v ctl = 0/+8v) tx por t rx port 41 dbm 33 dbm supply voltage (vdd) +10 vdc control voltage range (vctl) -0.2 to vdd storage temperature -65 to +150 c operating temperature -40 to +85 c dc blocking capacitors are required at ports rfc, tx and rx. inductors are required from tx to rfc and rx to rfc. see application circuit herein. control input signal path state vctl (vdc) tx to rfc rfc to rx 0.0 off on vdd on off vdd = +5.0v to +8.0v 0.2v control input voltage tolerances are 0.2 vdc. truth table do not operate continuously at power levels > 1 db com- pression and do not hot switch power levels greater than +36 dbm (vctl= +8v) into the tx port and no greater than +27 dbm into the rx port. electrostatic sensitive device observe handling precautions v03.0805 gaas mmic 10w t/r switch, 824 - 894 mhz* hmc446 / 446E 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 part number package body material lead finish msl rating package marking [3] hmc446 low stress injection molded plastic sn/pb solder msl1 [1] h446 xxxx hmc446E rohs-compliant low stress injection molded plastic 100% matte sn msl1 [2] 446E xxxx [1] max peak re ow temperature of 235 c [2] max peak re ow temperature of 260 c [3] 4-digit lot number xxxx package information
switches - smt 8 8 - 259 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 pin descriptions pin number function description interface schematic 1 tx this pin is dc coupled and matched to 50 ohms. 2 gnd this pin must be connected to pcb rf ground. 3vctl see truth table. 4 rx this pin is dc coupled and matched to 50 ohms. 5vdd supply voltage 6 rfc this pin is dc coupled and matched to 50 ohms. v03.0805 gaas mmic 10w t/r switch, 824 - 894 mhz* hmc446 / 446E
switches - smt 8 8 - 260 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 users must implement this application circuit with the hmc446 t/r switch for proper operation. note 1: l rx = coilcraft 0402cs - 8n2xjb, 8.2 nh, 5% tolerance inductor note 2: l tx = coilcraft 0603cs - 22nxjb, 22 nh, 5% tolerance inductor note 3: c1, c2, c3 = 330 pf capacitor note 4: external component values can be adjusted to enable hmc446 to operate in other frequency bands. contact hmc with your speci c requirement. note 5: set logic gate & switch vdd= +8v and use hc series logic to provide a buffered logic interface. required application circuit v03.0805 gaas mmic 10w t/r switch, 824 - 894 mhz* hmc446 / 446E
switches - smt 8 8 - 261 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 pcb the circuit board used in the nal application should use rf circuit design techniques. signal lines should have 50 ohm impedance while the pack- age ground leads should be connected directly to the ground plane similar to that shown above. a suf cient number of via holes should be used to connect the top and bottom ground planes. the evaluation circuit board as shown is available from hittite upon request. item description j1 - j3 pcb mount sma rf connector j4 - j6 dc pin c1 - c3 330 pf capacitor, 0603 pkg. ltx 22 nh inductor, 0603 pkg. lrx 8.2 nh inductor, 0402 pkg. u1 hmc446 / hmc446E t/r switch pcb [2] 103835 evaluation pcb [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 v03.0805 gaas mmic 10w t/r switch, 824 - 894 mhz* hmc446 / 446E list of materials for evaluation pcb 103837 [1]
|
