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 HMC748LC3C is a 2:1 selector designed to sup- port data transmission rates of up to 14 gbps, and selector port operation of up to 14 ghz. the selector routes one of the two single-ended inputs to the differential output upon assertion of the proper select port. the HMC748LC3C also features an output level control pin, vr, that allows for loss compensation or for signal level optimization. all select differential inputs to the HMC748LC3C are cml and terminated on-chip with 50 ohms to the positive supply, vcc, and may be ac or dc coupled. the single-ended inputs to the HMC748LC3C are cml terminated on-chip with 50 ohms to the positive supply, gnd, and may be dc coupled. the differential cml outputs are source terminated to 50 ohms and may also be ac or dc coupled. outputs can be connected directly to a 50 ohm vcc terminated system, while dc blocking capacitors may be used if the terminating system is 50 ohms to ground. the HMC748LC3C operates from a single + 3.3 v supply and is available in rohs-compliant 3x3 mm smt package. general description HMC748LC3C features functional diagram supports high data rates: up to 14 gbps single-ended inputs differential & single-ended outputs fast rise and fall times: 22 / 22 ps low power consumption: 250 mw typ. programmable differential output voltage swing: 600 - 1200 mv propagation delay: 125 ps single supply: +3.3 v 16 lead ceramic 3x3 mm smt package: 9 mm 2 typical applications the HMC748LC3C is ideal for: ? 2:1 multiplexer up to 14 gbps ? rf ate applications ? broadband test & measurement ? serial data transmission up to 14 gbps ? redundant path switching ? built-in test parameter conditions min. typ. max units power supply voltage 3.0 3.3 3.6 v power supply current 76 ma maximum data rate 14 gbps maximum select rate 14 ghz maximum serial transmission rate 26 gbps 14 gbps, 2:1 selector w/ programmable output voltage & positive supply v03.1010 electrical specifcations, t a = +25 c, vcc = 3.3 v, vr = 3.3 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 - 2 HMC748LC3C v03.1010 14 gbps, 2:1 selector w/ programmable output voltage & positive supply parameter conditions min. typ. max units input vcm vin = 600 mvp-p vcc - 0.375 vcc - 0.300 vcc - 0.275 v input high voltage vcc - 0.1 vcc - 0.5 v input low voltage vcc - 0.1 vcc - 0.5 v input return loss frequency <14 ghz 10 db output amplitude single-ended, peak-to-peak 550 mvp-p differential, peak-to-peak 1100 mvp-p output high voltage 3.29 v output low voltage 2.74 v output rise / fall time differential, 20% - 80% 22 / 22 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 vr pin current vr = 3.3 v 2 ma vr pin current vr = 3.7 v 3.5 ma [1] upper limit of random jitter, jr, determined by measuring and integrating output phase noise with a sinusoidal 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 [1] vr = 3.3 v [2] frequency = 13 ghz [3] vcc = 3.3 v dc current vs. supply voltage [1] [2] 60 70 80 90 100 110 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) 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) electrical specifcations (continued)
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 HMC748LC3C v03.1010 14 gbps, 2:1 selector w/ programmable output voltage & positive supply [1] vcc = 3.3 v [2] frequency = 13 ghz [3] vcc = 3.3 v input return loss vs. frequency output return loss vs. frequency rise / fall time vs. vr [1][2] output differential voltage vs. vr [1][2] -35 -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) rise / fall time vs. supply voltage [1][2] output differential vs. frequency [1][3] 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) 600 700 800 900 1000 1100 1200 1300 2 4 6 8 10 12 14 16 18 vout differential (mvp-p) frequency (ghz) 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, 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 HMC748LC3C v03.1010 14 gbps, 2:1 selector w/ programmable output voltage & positive supply eye diagram timing diagram truth table inputs outputs s dp h a -> d 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 = 13 ghz eye diagram data presented on a tektronix csa 8000 device is ac coupled to scope. select port return loss vs. frequency -30 -25 -20 -15 -10 -5 0 0 2 4 6 8 10 12 14 return loss (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 high speed logic - smt 3 3 - 5 absolute maximum ratings electrostatic sensitive device observe handling precautions outline drawing HMC748LC3C v03.1010 14 gbps, 2:1 selector w/ programmable output voltage & positive supply 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 0.05 mm datum -c- 6. all ground leads must be soldered to pcb rf ground. 7. paddle must be soldered to gnd. power supply voltage (vcc) vcc -0.5 v to 3.75 v input signals vcc - 2.0 v to vcc + 0.5 v output signals vcc - 1.5 v to vcc + 0.5 v continuous pdiss (t = 85 c) (derate 17 mw/c above 85 c) 0.68 w thermal resistance (r th j-p ) worst case junction to package paddle 59 c/w maximum junction temperature 125 c storage temperature -65 c to +150 c operating temperature -40 c to +85 c
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 HMC748LC3C v03.1010 14 gbps, 2:1 selector w/ programmable output voltage & positive supply pin number function description interface schematic 1, 4, 5, 8, 9, 12 gnd signal grounds 2, 3 ap, bp single-ended data inputs: current mode logic (cml) referenced to positive supply. 6, 7 sp, sn differential select inputs: current mode logic (cml) referenced to positive supply. 10, 11 dn, dp differential data outputs: current mode logic (cml) referenced to positive supply. 13, 16 vcc positive supply 14, package base gnd supply ground 15 vr output level control. output level may be adjusted by applying a voltage to vr per output differential vs. vr plot. 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 HMC748LC3C v03.1010 14 gbps, 2:1 selector w/ programmable output voltage & positive supply list of materials for evaluation pcb 122517 [1] item description j1 - j6 pcb mount sma rf connectors j7 - j9 dc pin jp1 shorting jumper c1, c2 4.7 f capacitor, tantalum c3 - c5 100 pf capacitor, 0402 pkg. r2 10 ohm resistor, 0603 pkg. u1 HMC748LC3C high speed logic, 2:1 selector pcb [2] 122515 evaluation board [1] reference this number when ordering complete evaluation pcb [2] circuit board material: arlon 25fr or rogers 4350 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 gnd. 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 vcc for normal operation.
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 HMC748LC3C v03.1010 14 gbps, 2:1 selector w/ programmable output voltage & positive supply application circuit
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