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 high speed logic - smt 3 3 - 1 the HMC850LC3C is a 1:2 fanout buffer designed to support data transmission rates up to 28 gbps, and clock frequencies as high as 20 ghz. all differential inputs and outputs are dc coupled and terminated on chip with 50 ohm resistors to the positive supply, ground. the outputs may be used in either single- ended or differential modes, and should be ac or dc coupled into 50 ohm resistors connected to ground. the HMC850LC3C also features an output level control pin, vr which allows for loss compensation or for signal level optimization. the HMC850LC3C operates from a single -3.3v dc supply and is available in a ceramic rohs compliant 3x3 mm smt package. general description HMC850LC3C features functional diagram inputs terminated internally to 50 ohms differential inputs are dc coupled propagation delay: 75 ps fast rise and fall times: 16 / 15 ps programmable differential output voltage swing: 600 - 1100 mv power dissipation: 315 mw 16 lead ceramic 3x3 mm smt package: 9 mm 2 typical applications the HMC850LC3C is ideal for: ? rf ate applications ? broadband test & measurement ? serial data transmission up to 28 gbps ? clock buffering up to 20 ghz electrical specifcations, t a = +25c, vee = -3.3v, vr = 0v 28 gbps, 1:2 fanout buffer with programmable output voltage v01.0610 parameter conditions min. typ. max units power supply voltage -3.6 -3.3 -3.0 v power supply current 95 ma maximum data rate 28 gbps maximum clock rate 20 ghz input voltage range -1.5 0.5 v input voltage differential 100 2000 mv input return loss frequency <20 ghz 10 db output amplitude single-ended, peak-to-peak 550 mvp-p differential, peak-to-peak 1100 mvp-p output high voltage -10 mv output low voltage -550 mv output rise / fall time single-ended, 20% - 80% 16 / 15 ps datasheet.in
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 high speed logic - smt 3 3 - 2 electrical specifcations, (continued) HMC850LC3C v01.0610 28 gbps, 1:2 fanout buffer with programmable output voltage [1] vr = 0.0v [2] frequency = 13 gbps [3] device measured on evaluation board with port extensions [4] vee = -3.3v dc current vs. supply voltage [1] [2] output differential vs. supply voltage [1] [2] output differential vs. vr [2][4] amplitude vs. input power [1][3][4] 70 80 90 100 110 120 130 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 +25c +85c -40c vr = +0.4 vr = -0.4 dc current (ma) supply voltage (v) 500 600 700 800 900 1000 1100 1200 1300 1400 1500 -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 +25c +85c -40c differential voltage (mv) vr (v) 500 600 700 800 900 1000 1100 1200 1300 1400 1500 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 +25c +85c -40c vr = +0.4 vr = -0.4 differential voltage (mv) supply voltage (v) -10 -5 0 5 10 15 20 25 30 35 40 0 5 10 15 20 25 0 dbm -10 dbm -20 dbm -30 dbm amplitude (db) frequency (ghz) parameter conditions min. typ. max units output return loss frequency <20 ghz 10 db small signal gain 28 db random jitter j r rms 0.2 ps rms deterministic jitter, j d - , 2 15 -1 prbs input [1] 2 6 ps propagation delay, td 75 ps d1 to d2 data skew, t skew 1 3 ps [1] deterministic jitter measured at 13 gbps with a 300 mvpp, 2 15 -1 prbs input sequence. datasheet.in
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 high speed logic - smt 3 3 - 3 HMC850LC3C v01.0610 28 gbps, 1:2 fanout buffer with programmable output voltage [1] vr = 0.0v [2] frequency = 13 gbps [3] device measured on evaluation board with port extensions [4] vee = -3.3v input return loss vs. frequency [1][3][4] output return loss vs. frequency [1][3][4] rise / fall time vs. vr [2][4] rise / fall time vs. supply voltage [2][4] 10 12 14 16 18 20 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 tr tf rise/fall time (ps) supply voltage (v) -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 return loss (db) frequency (ghz) 10 12 14 16 18 20 -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 tr tf rise/fall time (ps) vr (v) -35 -30 -25 -20 -15 -10 -5 0 5 0 5 10 15 20 25 return loss (db) frequency (ghz) datasheet.in
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 high speed logic - smt 3 3 - 4 HMC850LC3C v01.0610 28 gbps, 1:2 fanout buffer with programmable output voltage eye diagram @ 30 gbps eye diagram @ 34 gbps test conditions: single ended 550 mv data input. pattern generated with four 2 15 -1 pn patterns applied to the inputs re- sulting in a quasi-periodiic prbs pattern at 30 gbps. measured using tektronix csa 8000. test conditions: single ended 550 mv data input. pattern generated with four 2 15 -1 pn patterns applied to the inputs re- sulting in a quasi-periodiic prbs pattern at 34 gbps. measured using tektronix csa 8000. timing diagram datasheet.in
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 high speed logic - smt 3 3 - 5 absolute maximum ratings electrostatic sensitive device observe handling precautions outline drawing power supply voltage (vee) -3.75v to +0.5v input signals -2v to +0.5v output signals -1.5v to +0.5v junction temperature 125 c continuous pdiss (t = 85 c) (derate 17 mw/c above 85 c ) 0.68w thermal resistance (r th j-p ) worse case device to package paddle 59 c/w storage temperature -65c to +150c operating temperature -40c to +85c notes: 1. package body material: alumina 2. lead and ground paddle plating: 30-80 microinches gold over 50 microinches minimum nickel. 3. dimensions are in inches [millimeters]. 4. lead spacing tolerance is non-cumulative. 5. package warp shall not exceed 0.05mm datum -c- 6. all ground leads must be soldered to pcb rf ground. 7. paddle must be soldered to vee. HMC850LC3C v01.0610 28 gbps, 1:2 fanout buffer with programmable output voltage datasheet.in
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 high speed logic - smt 3 3 - 6 pin number function description interface schematic 1, 4, 5, 8, 9, 12, 13, 16 gnd these pins must be connected to a high quality rf/dc ground. 2, 3, 10, 11 d1p, d1n, d2n, d2p differential data outputs: current mode logic (cml) referenced to positive supply. 6, 7 dinp, dinn differential data inputs: current mode logic (cml) referenced to positive supply 14 vr output level control. output level may be increased or decreased by applying a voltage to vr per output differential vs. vr plot. 15 package base vee these pins and the exposed paddle must be connected to the negative voltage supply. pin descriptions HMC850LC3C v01.0610 28 gbps, 1:2 fanout buffer with programmable output voltage datasheet.in
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 high speed logic - smt 3 3 - 7 evaluation pcb list of materials for evaluation pcb 126514 [1] item description j1 - j6 pcb mount k rf connectors j7 - j9 dc pin c1, c2 100 pf capacitor, 0402 pkg. c3, c4 4.7 f capacitor, tantalum r1 10 ohm resistor, 0603 pkg. u1 HMC850LC3C fanout buffer pcb [2] 125612 evaluation board [1] reference this number when ordering complete evaluation pcb [2] circuit board material: arlon 25fr the circuit board used in the application should use rf circuit design techniques. signal lines should have 50 ohm impedance while the package gro- und leads should be connected directly to the ground plane similar to that shown. the exposed metal package base must be connected to vee. a sufficient number of via holes should be used to connect the top and bottom ground planes. the evaluation circuit board shown is available from hittite upon request. install jumper on jp1 to short vr to gnd for normal operation. HMC850LC3C v01.0610 28 gbps, 1:2 fanout buffer with programmable output voltage datasheet.in
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 high speed logic - smt 3 3 - 8 application circuit HMC850LC3C v01.0610 28 gbps, 1:2 fanout buffer with programmable output voltage datasheet.in
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