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 general description features functional diagram typical applications 28 ghz clock divide-by-2 / divide-by-4 HMC791LC4B v02.1209 the HMC791LC4B is a low-noise divide-by-2, divide- by-4 designed to support input clock frequencies as high as 28 ghz. when an input clock signal is applied, divide-by-2 and divide-by-4 outputs are observed simultaneously. all input signals to the HMC791LC4B are terminated with 50 to ground on-chip, and may be either ac or dc coupled. out- puts can be connected directly to a 50 terminated system, while dc blocking capacitors must be used if the terminating system is 50 to a non-zero voltage. the HMC791LC4B operates from a single -3.3v dc supply and is available in a ceramic rohs compliant smt package. supports clock frequencies up to 28 ghz simultaneous divide-by-2 and divide-by-4 outputs differential and single-ended operation [1] fast rise and fall times (12 / 14 ps) low power consumption: 660mw single negative power supply (-3.3v) output signal swing: 600mv p-p differential ultra low ssb phase noise: -151 dbc/hz 24 lead 4x4mm smt package: 16mm 2 electrical specifcations, t a = +25 c, vee = vee1 = vee2 = vee3 = -3.3v the HMC791LC4B is ideal for: ? frequency division up to 28 ghz ? short, intermediate, long haul fiber optic applications ? 100 gbe applications ? serial data transmission systems up to 28 ghz ? broadband test and measurement applications parameter conditions min. typ. max. units power supply voltage 10% tolerance -3.0 -3.3 -3.6 v total supply current 200 ma input frequency 0.1 28 ghz input amplitude range (single-ended) [2] 1.0 - 6 ghz -7 +6 dbm 6 - 12 ghz -20 +6 dbm 12 - 16 ghz -20 +3 dbm 16 - 28 ghz -20 +5 dbm input return loss <20 ghz 9 db input high voltage gnd referenced -0.5 0.5 v input low voltage gnd referenced -1 0 v [1] see recommended single ended and differential confgurations [2] see recommended single ended confguration.
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, t a = +25 c, vee = vee1 = vee2 = vee3 = -3.3v HMC791LC4B v02.1209 28 ghz clock divide-by-2 / divide-by-4 parameter conditions min. typ. max. units ck/2 output amplitude differential p-p 600 mv ck/4 output amplitude differential p-p 600 mv ck/2 output return loss <14 ghz 10 db ck/4 output return loss <7 ghz 15 db ck/2 output high voltage gnd referenced -10 mv ck/2 output low voltage gnd referenced -340 mv ck/4 output high voltage gnd referenced -9 mv ck/4 output low voltage gnd referenced -350 mv additive random jitter [1] @ 28 ghz, ck/2 output, rms 200 fs @ 28 ghz, ck/4 output, rms 280 fs ck/2 output rise/fall time @ 28 ghz input, 20% - 80% 12 / 14 ps ck/4 output rise/fall time @ 28 ghz input, 20% - 80% 17 / 16 ps ck/2 ssb phase noise 10 ghz input @ 100 khz offset -151 dbc/hz ck/4 ssb phase noise 10 ghz input @ 100 khz offset -150 dbc/hz [1] cable and eval board contribution is de-embedded. rj added = [ (rj tested ) 2 C (rj thru ) 2 ] dc current vs. vee over temperature recommended operating window [2] 0 50 100 150 200 250 300 -3.6 -3.45 -3.3 -3.15 -3 25c 85c -5c supply voltage vee (v) dc current (ma) -25 -20 -15 -10 -5 0 5 10 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 frequency (ghz) input amplitude range (dbm) recommended operating window [2] see recommended single ended confguration.
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 differential output voltage vs. vee over temperature, divide-by-2 rise time vs. vee over temperature, divide-by-2 differential output voltage vs. vee over temperature, divide-by-4 rise time vs. vee over temperature, divide-by-4 fall time vs. vee over temperature, divide-by-2 fall time vs. vee over temperature, divide-by-4 0 2 4 6 8 10 12 14 16 -3.6 -3.45 -3.3 -3.15 -3 25c 85c -5c supply voltage vee (v) fall time 20%-80% (ps) 0 100 200 300 400 500 600 700 800 -3.6 -3.45 -3.3 -3.15 -3 25c 85c -5c supply voltage vee (v) differential voltage (mv) 0 2 4 6 8 10 12 14 16 -3.6 -3.45 -3.3 -3.15 -3 25c 85c -5c supply voltage vee (v) rise time 20%-80% (ps) 0 4 8 12 16 20 24 -3.6 -3.45 -3.3 -3.15 -3 25c 85c -5c supply voltage vee (v) fall time 20%-80% (ps) 0 100 200 300 400 500 600 700 800 -3.6 -3.45 -3.3 -3.15 -3 25c 85c -5c supply voltage vee (v) differential voltage (mv) 0 4 8 12 16 20 24 -3.6 -3.45 -3.3 -3.15 -3 25c 85c -5c supply voltage vee (v) rise time 20%-80% (ps) HMC791LC4B v02.1209 28 ghz clock divide-by-2 / divide-by-4
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 rms jitter vs. vee over temperature, divide-by-2 phase noise vs. offset frequency, divide-by-2 [1] rms jitter vs. vee over temperature, divide-by-4 phase noise vs. offset frequency, divide-by-4 [1] 0 50 100 150 200 250 300 -3.6 -3.45 -3.3 -3.15 -3 25c 85c -5c supply voltage vee (v) rms jitter (fs) -160 -140 -120 -100 -80 -60 -40 -20 0 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 ssb phase noise (dbc/hz) frequency offset (hz) 0 100 200 300 400 500 -3.6 -3.45 -3.3 -3.15 -3 +25c +85c -5c supply voltage vee (v) rms jitter (fs) -160 -140 -120 -100 -80 -60 -40 -20 0 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 ssb phase noise (dbc/hz) frequency offset (hz) HMC791LC4B v02.1209 28 ghz clock divide-by-2 / divide-by-4 input return loss vs. frequency output return loss vs. frequency -30 -25 -20 -15 -10 -5 0 0 4 8 12 16 20 return loss (db) frequency (ghz) -30 -25 -20 -15 -10 -5 0 0 2 4 6 8 10 12 14 divide-by-2 divide-by-4 return loss (db) frequency (ghz) [1] input frequency = 10 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 output signal timing diagram truth table inputs outputs (q k-1 ) outputs (q k ) ck ck/2 ck/4 ck/2 ck/4 l h h h l h l h l h h h l h h l l l l h l l h l h l h h h l h l l h l l h l h l h h h l l l l h notes: ck = ckp- ckn ck/2 = ckp/2 C ckn/2 ck/4 = ckp/4 C ckn/4 h denotes high voltage level l denotes low voltage level l h denotes rising edge h l denotes falling edge HMC791LC4B v02.1209 28 ghz clock divide-by-2 / divide-by-4 [1] test conditions: ck/2 and ck/4 outputs are presented on an infnium 86100c input clock frequency = 28 ghz vin = -6 dbm measurements current minimum maximum total count rise time (/2) 12.00 ps 12.00 ps 12.67 ps 50 fall time (/2) 12.67 ps 12.67 ps 13.33 ps 51 rise time (/4) 16.67 ps 16.00 ps 16.67 ps 51 fall time (/4) 16.67 ps 16.67 ps 16.67 ps 51 vertical scale (/2) 65 mv/div vertical scale (/4) 80 mv/div horizontal scale 30.0.ps/div / 2 / 4
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 HMC791LC4B v02.1209 28 ghz clock divide-by-2 / divide-by-4 absolute maximum ratings electrostatic sensitive device observe handling precautions outline drawing power supply voltage (vee) -3.7v to +0.5v input voltage (single ended) -1.5v to +0.5v channel temperature 125c continuous pdiss (t = 85c) (derate 26.4 mw/c above 85c) 1.06 w thermal resistance (channel to ground paddle) 37.88 c/w storage temperature -65c to +125c operating temperature -5c to +85c notes: 1. package body material: alumina 2. lead and ground paddle plating: 30 - 80 microinches gold over 50 microinches minimum nickle 3. dimensions are in inches [millimeters] 4. lead spacing tolerance is non-cumulative 5. package warp shall not exceed 0.05mm datum 6. all ground leads and ground paddle must be soldered to pcb rf ground 7. classified as a moisture sensitivity level (msl) 1.
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 pin number function description interface schematic 1, 6, 7, 12, 13, 18, 19 n/c the pins are not connected internally; however, all data shown herein was measured with these pins connected to rf/dc ground externally. 2, 5, 8, 11, 14, 17, 21, 24 gnd signal and supply ground 3, 4 ckn, ckp differential (ckp-ckn) or single ended (ckp) clock inputs 9, 10 ckn/2, ckp/2 differential divide-by-2 outputs 15, 16 ckn/4, ckp/4 differential divide-by-4 outputs 20, 22, 23 vee3, vee2, vee1 power supply (-3.3v) pin descriptions HMC791LC4B v02.1209 28 ghz clock divide-by-2 / divide-by-4
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 HMC791LC4B v02.1209 28 ghz clock divide-by-2 / divide-by-4 evaluation pcb 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 packaged 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 hit - tite upon request. list of materials for evaluation pcb 126499 [1] item description j1 - j6 k connector j11 - j12 dc pin c2 100 pf capacitor, 0402 pkg. c3 - c5 1 nf capacitor, 0402 pkg. c8 4.7 f capacitor, tantalum u1 HMC791LC4B divide-by-2, divide-by-4 pcb [2] 127876 evaluation board [1] reference this number when ordering complete evaluation pcb [2] circuit board material: rogers 4350 or arlon 25fr
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 - 9 application circuit - recommended differential confguration HMC791LC4B v02.1209 28 ghz clock divide-by-2 / divide-by-4
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 - 10 HMC791LC4B v02.1209 28 ghz clock divide-by-2 / divide-by-4 application circuit - recommended single-ended confguration
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