hig h speed d igtial l ogic - sm t 1 HMC744LC3 v02.0312 14 gbps, fast rise time 1:2 fanout buffer w/ programmable output voltage & positive supply t he hm c 744 lc 3 is a 1:2 fanout buffer designed to support data transmission rates up to 14 g bps, and clock frequencies as high as 14 g hz. a ll differential inputs to the hm c 744 lc 3 are c m l and terminated on-chip with 50 o hms to the positive supply, vcc, and may be ac or dc coupled. t he differential c m l outputs are source terminated to 50 o hms and may also be ac or dc coupled. o utputs can be connected directly to a 50 o hm vcc-terminated system, while dc blocking capacitors may be used if the terminating system is 50 o hms to ground. t he hm c 744 lc 3 also features an output level control pin, vr, which allows for loss compensation or signal-level optimization. the hm c 744 lc 3 operates from a single 3.3 v supply and is available in r o hs-compliant 3x3 mm sm t package. general description features functional diagram i nputs t erminated i nternally to 50 o hms d ifferential & single- e nded o peration p ropagation d elay: 120 ps fast rise and fall t imes: 22 / 20 ps p rogrammable d ifferential o utput voltage swing: 600 - 1100 mv l ow p ower c onsumption: 287 mw typ. single supply: +3.3 v 16 l ead c eramic 3x3 mm sm t p ackage: 9 mm 2 typical applications t he hm c 744 lc 3 is ideal for: ? rf ate applications ? broadband test & measurement ? serial data transmission up to 14 gbps ? clock buffering up to 14 ghz electrical specifcations, t a = +25 oc, vcc = 3.3 v, vr = 3.3 v p arameter c onditions min. t yp. max units p ower supply voltage 3.0 3.3 3.6 v p ower supply c urrent 87 ma maximum d ata rate 14 g bps maximum c lock rate 14 g hz i nput voltage range vcc - 1.5 vcc + 0.5 v i nput d ifferential range 0.1 2 vp-p i nput return l oss frequency <14 g hz 10 db o utput a mplitude single- e nded, peak-to-peak 550 mvp-p d ifferential, peak-to-peak 110 0 mvp-p o utput high voltage 3.29 v o utput l ow voltage 2.74 v o utput rise / fall t ime single- e nded, 20% - 80% 22 / 20 ps for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, 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
hig h speed d igtial l ogic - sm t 2 HMC744LC3 v02.0312 14 gbps, fast rise time 1:2 fanout buffer w/ programmable output voltage & positive supply electrical specifcations (continued) p arameter c onditions min. t yp. max units o utput return l oss frequency <13 g hz 10 db small signal g ain 27 db random jitter j r rms 0.2 ps rms d eterministic jitter, j d - , 2 15 -1 p rbs input [1] 2 6 ps p ropagation d elay, td 120 ps d 1 to d 2 d ata skew, t sk e w <2 ps vr p in c urrent vr = 3.3 v 2 ma vr p in c urrent vr = 3.7 v 3.5 ma [1] d eterministic jitter measured at 13 g hz with a 300 mvp-p, 2 15 -1 p rbs input sequence. [1] vr = 3.3 v [2] frequency = 13 g hz [3] vcc = 3.3 v dc current vs. supply voltage [1][2] rise / fall time vs. supply voltage [1][2] 70 75 80 85 90 95 100 105 110 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 +25c +85c -40c dc current (ma) supply voltage (v) 15 17 19 21 23 25 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 tr tf rise/fall time (ps) supply voltage (v) output differential voltage vs. supply voltage [1][2] 1000 1025 1050 1075 1100 1125 1150 1175 1200 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 3.7 +25c +85c -40c vout differential (mvp-p) supply voltage (v) output differential voltage vs. frequency [1][3] 400 600 800 1000 1200 1400 2 4 6 8 10 12 14 16 18 vout differential (mvp-p) frequency (ghz) for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, 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
hig h speed d igtial l ogic - sm t 3 HMC744LC3 v02.0312 14 gbps, fast rise time 1:2 fanout buffer w/ programmable output voltage & positive supply [1] vcc = 3.3 v [2] frequency = 13 g hz input return loss vs. frequency output return loss vs. frequency rise / fall time vs. vr [1][2] output differential voltage vs. vr [1][2] -30 -25 -20 -15 -10 -5 0 0 2 4 6 8 10 12 14 return loss (db) frequency (ghz) -35 -30 -25 -20 -15 -10 -5 0 0 2 4 6 8 10 12 14 return loss (db) frequency (ghz) 15 17 19 21 23 25 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7 tr tf rise/fall time (ps) vr (v) 400 600 800 1000 1200 1400 2.1 2.3 2.5 2.7 2.9 3.1 3.3 3.5 3.7 +25c +85c -40c vout differential (mvp-p) vr (v) for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, 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
hig h speed d igtial l ogic - sm t 4 HMC744LC3 v02.0312 14 gbps, fast rise time 1:2 fanout buffer w/ programmable output voltage & positive supply eye diagram timing diagram truth table i nput o utputs di n d1 d 2 l l l h h h notes: di n = di n p - di nn d 1 = d 1 p - d 1n d 2 = d 2 p - d 2n h - p ositive differential voltage l - negative differential voltage [1] t est c onditions: p attern generated with an a gilent n4903 a serial b er t . e ye d iagram presented on a t ektronix c s a 8000. d evice input = 13 g bps p n code. both output channels shown. d evice is ac coupled to scope for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, 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
hig h speed d igtial l ogic - sm t 5 HMC744LC3 v02.0312 14 gbps, fast rise time 1:2 fanout buffer w/ programmable output voltage & positive supply absolute maximum ratings elect ro s tatic s e ns iti v e de v ice o bs e rv e h a n dli n g p r eca u tio ns outline drawing n ote s: 1. pac k age b od y m ate r ial : al um i n a 2. lead a n d g r o un d paddle plati n g : 30-80 m ic r oi n che s gold o v e r 50 m ic r oi n che s m i n i mum n ic k el . 3. di m e ns io ns a r e i n i n c h e s [m illi m ete rs]. 4. lead s paci n g tole r a n ce i s n o n- c umu lati v e . 5. pac k age w a r p sh all n ot e x ceed 0.05 mm dat um - c - 6. all g r o un d lead s mus t b e s olde r ed to pc b rf g r o un d . 7. paddle mus t b e s olde r ed to g n d . p ower supply voltage (vcc) vcc -0.5 v to +3.75 v i nput signals vcc -2.0 v to vcc +0.5 v o utput signals vcc -1.5 v to vcc +0.5 v c ontinuous p diss ( t = 85 c ) (derate 17 mw/ c above 85 c ) 0.68 w t hermal resistance (r th j-p ) worst case junction to package paddle 59 c /w maximum junction t emperature 125 c storage t emperature -65 c to +150 c o perating t emperature -40 c to +85 c e s d sensitivity (hbm) c lass 1 c for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, 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
hig h speed d igtial l ogic - sm t 6 HMC744LC3 v02.0312 14 gbps, fast rise time 1:2 fanout buffer w/ programmable output voltage & positive supply p in number function d escription i nterface schematic 1, 4, 5, 8, 9, 12 g nd signal g rounds 2, 3 10, 11 d1 p , d 1n d 2n, d 2 p d ifferential d ata o utputs: c urrent mode l ogic ( c m l ) referenced to positive supply. 6, 7 di n p , di nn d ifferential d ata i nputs: c urrent mode l ogic ( c m l ) referenced to positive supply. 13, 16 vcc p ositive supply 14, p ackage base g nd supply g round 15 vr o utput level control. o utput level may be adjusted by applying a voltage to vr per o utput d ifferential vs. vr plot. pin descriptions for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, 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
hig h speed d igtial l ogic - sm t 7 HMC744LC3 v02.0312 14 gbps, fast rise time 1:2 fanout buffer w/ programmable output voltage & positive supply evaluation pcb t he circuit board used in the application should use rf circuit design techniques. signal lines should have 50 o hm impedance while the package gro- und leads should be connected directly to the ground plane similar to that shown. t he exposed packaged base should be connected to g n d . a sufficient number of via holes should be used to connect the top and bottom ground planes. t he evaluation circuit board shown is available from hittite upon request. i nstall jumper on j p 1 to short vr to vcc for normal operation. list of materials for evaluation pcb 122517 [1] i tem d escription j1 - j6 pc b mount sm a rf c onnectors j7 - j9 dc p in j p1 shorting jumper c 1, c 2 4.7 f c apacitor, t antalum c 3 - c 5 100 pf c apacitor, 0402 p kg. r2 10 o hm resistor, 0603 p kg. u1 hm c 744 lc 3 high speed l ogic, fanout buffer pc b [2] 122515 e valuation board [1] reference this number when ordering complete evaluation pc b [2] c ircuit board material: a rlon 25fr or rogers 4350 for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, 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
hig h speed d igtial l ogic - sm t 8 HMC744LC3 v02.0312 14 gbps, fast rise time 1:2 fanout buffer w/ programmable output voltage & positive supply application circuit for price, delivery and to place orders: hittite microwave corporation, 2 elizabeth drive, 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
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