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 HMC678LC3C is a 2:1 selector designed to sup- port data transmission rates of up to 13 gbps, and selector port operation of up to 13 ghz. the selector routes one of the two single-ended inputs to the differential output upon assertion of the proper select port. the HMC678LC3C also features an output level control pin, vr, which allows for loss compensation or for signal level optimization. all single-ended input signals to the HMC678LC3C are terminated with 50 ohms to ground on-chip, and may be either ac or dc coupled. the outputs of the HMC678LC3C may be operated either differentially or single-ended. outputs can be connected directly to a 50 ohm terminated system, while dc blocking capacitors may be used if the terminating system is 50 ohms to a non-ground dc voltage. the HMC678LC3C operates from a single -3.3v dc supply and is available in a ceramic rohs compliant 3x3 mm smt package. general description HMC678LC3C features functional diagram supports high data rates: up to 13 gbps single-ended inputs differential & single-ended outputs fast rise and fall times: 19 / 18 ps low power consumption: 250 mw typ. programmable differential output voltage swing: 600 - 1200 mv propagation delay: 125 ps single supply: -3.3v 16 lead ceramic 3x3mm smt package: 9mm 2 typical applications the HMC678LC3C is ideal for: ? 2:1 multiplexer up to 13 gbps ? rf ate applications ? broadband test & measurement ? serial data transmission up to 13 gbps ? redundant path switching ? built-in test electrical specifcations, t a = +25c, vee = -3.3v parameter conditions min. typ. max units power supply voltage -3.6 -3.3 -3.0 v power supply current 76 ma maximum data rate 13 gbps maximum select rate 13 ghz maximum serial transmission rate 26 gbps input high voltage -0.2 0.5 v input low voltage -1.5 -0.4 v input return loss frequency <13 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 13 gbps, 2:1 selector w/ programmable output voltage v04.1209
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) HMC678LC3C v04.1209 13 gbps, 2:1 selector w/ programmable output voltage parameter conditions min. typ. max units output low voltage -570 mv output rise / fall time differential, 20% - 80% 19 / 18 ps output return loss frequency <13 ghz 10 db random jitter, jr rms [1] 0.2 ps rms deterministic jitter, jd peak-to-peak, 2 15 -1 prbs input [2] 2 ps, p-p propagation delay, a or b to d out , td 125 ps propagation delay select to data, tds 135 ps set up & hold time, t sh 6 ps [1] upper limit of random jitter, jr, determined by measuring and integrating output phase noise with a sinusodal input at 5, 10, and 13.5 ghz over temperature [2] deterministic jitter calculated by simultaneously measuring the jitter of a 200 mv, 12.5 ghz, 2 15 -1 prbs input, and a single-ended output rise / fall time vs. supply voltage [1] [2] dc current vs. supply voltage [1] [2] [1] vr = 0.0v [2] frequency = 13 ghz 60 65 70 75 80 85 90 95 100 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 +25 c +85 c -40 c dc current (ma) supply voltage (v) 15 17 19 21 23 25 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 tr tr rise/fall time (ps) supply voltage (v) output differential vs. supply voltage [1] [2] 700 800 900 1000 1100 1200 1300 1400 -3.7 -3.6 -3.5 -3.4 -3.3 -3.2 -3.1 -3 -2.9 +25 c +85 c -40 c differential voltage (mv) supply voltage (v) output differential vs. frequency 700 800 900 1000 1100 1200 1300 2 4 6 8 10 12 14 output differential (mv) 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 high speed logic - smt 3 3 - 3 HMC678LC3C v04.1209 13 gbps, 2:1 selector w/ programmable output voltage return loss vs. frequency output differential vs. vr [2] rise / fall time vs. vr [2] [1] vr = 0.0v [2] frequency = 13 ghz -40 -35 -30 -25 -20 -15 -10 -5 0 0 2 4 6 8 10 12 14 input rl output rl return loss (db) frequency (ghz) 500 600 700 800 900 1000 1100 1200 1300 1400 -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 +25 c +85 c -40 c differential voltage (mv) vr (v) 15 17 19 21 23 25 -1.2 -1 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 tr tf rise/fall time (ps) vr (v)
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 HMC678LC3C v04.1209 13 gbps, 2:1 selector w/ programmable output voltage eye diagram timing diagram truth table inputs outputs sp sn dp l h a -> d h l b -> d h = positive voltage level l = negative voltage level notes: d = dp - dn s = sp - sn [1] test conditions: waveform generated with an agilent n4903a j-bert. rate = 10 ghz eye diagram data presented on a tektronix csa 8000
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 +1v storage temperature -65c to +150c operating temperature -40c to +85c HMC678LC3C v04.1209 13 gbps, 2:1 selector w/ programmable output voltage 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. ground paddle must be soldered to vee.
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 HMC678LC3C v04.1209 13 gbps, 2:1 selector w/ programmable output voltage pin number function description interface schematic 1, 4, 5, 8, 9, 12 gnd signal grounds 2, 3 ap, bp data inputs 6, 7 sp, sn select inputs 10, 11 dn, dp data outputs 13, 16 gnd supply ground 14 vr output level control. output level may be adjusted by either applying a voltage to vr per output differential vs. vr plot, or by tying vr to gnd with a resistor per the following equation: v 0 (r) = 1.2 / (2.1 + r), r in k? 15, package base vee negative supply pin descriptions
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 HMC678LC3C v04.1209 13 gbps, 2:1 selector w/ programmable output voltage list of materials for evaluation pcb 118777 [1] item description j1 - j6 pcb mount sma rf connectors j7 - j9 dc pin c1 - c2 100 pf capacitor, 0402 pkg. c16 - c17 4.7 f capacitor, tantalum r1 10 ohm resistor, 0603 pkg. u1 HMC678LC3C high speed logic, 2:1 selector pcb [2] 118775 evaluation board [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 item description j1 ap j2 bp j3 sp j4 sn j5 dn j6 dp j7 vee j8 vr j9 gnd 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 package base should be connected to vee. a suffi - cient 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.
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 HMC678LC3C v04.1209 13 gbps, 2:1 selector w/ programmable output voltage application circuit
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