1 precision edge ? sy89327l micrel, inc. m9999-071707 hbwhelp@micrel.com or (408) 955-1690 description input accepts virtually all logic standards: ?s ingle-ended: sstl, ttl, cmos ?d ifferential: lvds, hstl, cml guaranteed ac performance over temp and voltage: ? dc-to >2.5gbps data rate throughput ? dc-to >2.5ghz clock f max ?< 400ps in-to-out t pd ?< 200ps t r /t f ultra-low jitter design: ? <1ps rms random jitter ? <10ps pp deterministic jitter ? <1ps rms cycle-to-cycle jitter ? <10ps pp total jitter (clock) low power: 46mw (typ) 100k lvpecl output flow-through pinout and fully differential design power supply 3.3v 10% C40 c to +85 c temperature range available in ultra-small 8-lead 2mm x 2mm mlf ? package features 3.3v 2.5gbps any input-to-lvpecl differential translator precision edge ? sy89327l applications high-speed logic data communications systems wireless communications systems telecom systems rev.: c amendment: /0 issue date: july 2007 the sy89327l is a fully differential, high-speed translator optimized to accept any logic standard from single-ended ttl/cmos to differential lvds, hstl, or cml and translate it to lvpecl. translation is guaranteed for speeds up to 2.5gbps (2.5ghz toggle frequency). the sy89327l does not internally terminate its inputs because different interfacing standards have different termination requirements. the sy89327l is a member of micrels precision edge ? family of high-speed logic devices. this family features ultra- small packaging, as well as high signal integrity and operation at many different supply voltages. all support documentation can be found on micrels web site at www.micrel.com. typical applications circuit functional block diagram precision edge ? nc any in in /in nc vcc l vpecl out q /q vee 1 2 3 4 8 7 6 5 8-pin mlf ? (2mm 2mm)
! "#$ % "#$ precision edge is a registered trademark of micrel, inc. micro leadframe and mlf are registered trademarks of amkor technology, inc.
2 precision edge? sy89327l micrel, inc. m9999-071707 hbwhelp@micrel.com or (408) 955-1690 package/ordering information pin number pin name pin function 2, 3 in, /in differential inputs: this input is the differential signal input to the device. this input accepts ac- or dc-coupled signals as small as 100mv. external termination is required. please refer to the input interface applications section for more details. 8 vcc positive power supply. bypass with 0.1 f ?? 0.01 f low esr capacitors. 7, 6 q, /q differential lvpecl output: terminate with 50 ? to v cc C2v. see output interface applications section. output pair is 100k temperature compensated lvpecl compatible. 5 gnd, ground: ground pin and exposed pad must be connected to the same ground plane. exposed pad 1, 4 nc no connect. pin description nc in /in nc vcc q /q gnd 1 2 3 4 8 7 6 5 8-pin mlf ? functional description establishing static logic inputs do not leave unused inputs floating. tie either the true or complement input to ground. a logic zero is achieved by connecting the complement input to ground with the true input floating. for a ttl input, tie a 2.5k ? resistor between the complement input and ground. see input interface section. input levels lvds, cml, and hstl differential signals may be connected directly to the d inputs. depending on the actual worst case voltage seen, the sy8327l's performance varies as per the following table: input voltage minimum maximum range voltage swing translation speed 0 to 2.4v 100mv 2.5gbps 0 to v cc +0.3v 200mv 1.25gbps for lvds applications, only point-to-point interfaces are supported. due to the current required by the input structure shown in figure 1, multi-drop and multi-point architectures are not supported. r2 1.5k ? r2 1.5k ? r1 1.05k ? r1 1.05k ? gnd d in /d in v cc figure 1. simplified input structure ordering information package operating package lead part number type range marking finish sy89327lmitr mlf-8 industrial 327 sn-pb sy89327lmgtr mlf-8 industrial 327 with pb-free pb-free bar-line indicator nipdau
3 precision edge ? sy89327l micrel, inc. m9999-071707 hbwhelp@micrel.com or (408) 955-1690 absolute maximum ratings (1) supply voltage (v cc ) ................................ C-0.5v to + 4.0v input voltage (vin) ......................................... C0.5v to v cc input current source or sink current on in, /in .......................... 50ma lead temperature (soldering, 20 sec.) ................... +260 c storage temperature (t s ) ...................... C65 c to +150 c operating ratings (2) supply voltage (v cc ) ..................................... 3.0v to 3.6v ambient temperature (t a ) ......................... C40 c to +85 c package thermal resistance (3) mlf ? ( ja ) still-air ................................................................. 93 c/w 500lfpm ............................................................... 87 c/w mlf ? ( jb ) junction-to-board ............................................... 32 c/w t a = C40 c to +85 c; unless stated. symbol parameter condition min typ max units v cc power supply 3.0 3.3 3.6 v i cc power supply current no load, max. v cc (5) 28 45 ma dc electrical characteristics (4) v cc = 3.3v 10%; t a = C40 c to +85 c; r l = 50 ? to v cc C2v, or equivalent, unless otherwise stated. symbol parameter condition min typ max units v ol output high voltage v cc C1.945 v cc C1.695 v q, /q v oh output common mode range v cc C1.145 v cc C0.895 v q, /q v out output voltage swing see figure 2a 550 800 mv q, /q v diff-out differential output voltage swing see figure 2b 1100 1600 mv pp q, /q notes: 1. permanent device damage may occur if the absolute maximum ratings are exceeded. this is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. exposure to the absolute maximum ratings conditions for extended periods may affect device reliability. 2. the data sheet limits are not guaranteed if the device is operated beyond the operating ratings. 3. package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices' most negative potential on the pcb . jb uses 4-layer ja in still-air unless otherwise stated. 4. the circuit is designed to meet the dc specifications shown in the above table after thermal equilibrium has been established . lvpecl output dc electrical characteristics (4) v cc = 3.3v 10%; t a = C40 c to +85 c; r l = 50 ? to v cc C2v, or equivalent, unless otherwise stated. symbol parameter condition min typ max units v ih input high voltage v ih min must be 1.2v v cc +0.3 v v il input low voltage C0.3 v v in input voltage swing see figure 2a, v ih < 2.4v 100 mv see figure 2a, v ih < v cc +0.3v 200 mv input electrical characteristics (4)
4 precision edge? sy89327l micrel, inc. m9999-071707 hbwhelp@micrel.com or (408) 955-1690 v cc = 3.3v 10%; t a = C40 c to +85 c; r l = 50 ? to v cc C2v, or equivalent, unless otherwise stated. symbol parameter condition min typ max units f max maximum operating frequency nrz data 2.5 gbps v out 200mv clock 2.5 ghz t pd propagation delay in-to-q, /in-to-/q v in 100mv 400 ps t jitter random jitter (rj) note 6 1ps rms deterministic jitter (dj) note 7 10 ps pp total jitter (tj) note 8 10 ps pp t r , t f rise / fall time (20% to 80%) at full output swing 200 ps q, /q notes: 5. see timing diagrams section for definition of parameters. high frequency ac-parameters are guaranteed by design and charact erization. 6. rj is measured with a k28.7 comma detect character pattern, measured at f max . 7. dj is measured at 2.5gbps, with both k28.5 and 2 23 C1 prbs pattern. 8. total jitter definition: with an ideal clock input of frequency f max , no more than one output edge in 10 12 output edges will deviate by more than the specified peak-to-peak jitter value. ac electrical characteristics (5)
5 precision edge ? sy89327l micrel, inc. m9999-071707 hbwhelp@micrel.com or (408) 955-1690 single-ended and differential swings v out 800mv (typ.) figure 2a. single-ended voltage swing v diff_out 1600mv (typ.) figure 2b. differential voltage swing timing diagram in /in q /q t pd figure 3. timing diagram
6 precision edge? sy89327l micrel, inc. m9999-071707 hbwhelp@micrel.com or (408) 955-1690 input interface applications in /in sy89327l l vttl 2.5k ? 1% v cc(driver) v cc(327) v cc(driver) figure 4. 3.3v "ttl" cml in /in v cc(driver) v cc(327) v cc(driver) 102 ? 1% sy89327l figure 5. cml-dc coupled in /in sy89327l 2.5v l vttl 2.5k ? 1% 2.3v to 2.7v v cc figure 6. 2.5v "ttl" pecl in /in 51 ? 1% 51 ? 1% v cc(driver) v cc(327) v cc(driver) sy89327l v cc C 2v figure 7. pecl-dc coupled hstl in /in sy89327l v cc 50 ? 50 ? figure 8. hstl cml in /in 3.92k ? 1% 3.92k ? 1% 102 ? 1% v cc(driver) v cc sy89327l figure 9. cml-ac coupled short lines cml in /in 130 ? 1% 130 ? 1% v cc(driver) v cc sy89327l 82 ? 1% 82 ? 1% v cc figure 10. cml-ac coupled long lines l vds in /in v cc 102 ? 1% sy89327l figure 11. lvds in /in 100 ? 1% 100 ? 1% v cc sy89327l 105 ? 1% 105 ? 1% sstl_2 v ddq figure 12. sstl_2 in /in 90.9 ? 1% 90.9 ? 1% v cc sy89327l 110 ? 1% 110 ? 1% sstl_3 v ddq figure 13. sstl_3
7 precision edge ? sy89327l micrel, inc. m9999-071707 hbwhelp@micrel.com or (408) 955-1690 part number function datasheet link sy55857l 3.3v, 2.5gbps any input-to-lvpecl www.micrel.com/product-info/products/sy55857l.shtml dual translator mlf ? application note www.amkor.com/products/notes_papers/mlf_appnote_0902.pdf hbw solutions new products and applications www.micrel.com/product-info/products/solutions.shtml related product and support documentation
8 precision edge? sy89327l micrel, inc. m9999-071707 hbwhelp@micrel.com or (408) 955-1690 8-pin micro leadframe ? (mlf-8) package notes: 1. package meets level 2 qualification. 2. all parts are dry-packaged before shipment. 3. exposed pads must be soldered to a ground for proper thermal management. micrel, inc. 2180 fortune drive san jose, ca 95131 usa tel + 1 (408) 944-0800 fax + 1 (408) 474-1000 web http://www.micrel.com the information furnished by micrel in this data sheet is believed to be accurate and reliable. however, no responsibility is a ssumed by micrel for its use. micrel reserves the right to change circuitry and specifications at any time without notification to the customer. micrel products are not designed or authorized for use as components in life support appliances, devices or systems where malfu nction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intend ed for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant inj ury to the user. a purchasers use or sale of micrel products for use in life support appliances, devices or systems is at purchasers own risk and purchaser agrees to fully indemnify micrel for any damages resulting from such use or sale. ? 2005 micrel, incorporated.
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