sy88808l 10. 3gbps transceiver with programmable equalization precision edge is a registered trademark of micrel, inc paralink is a registered trademark of leoni micrel inc. ? 2180 fortune drive ? san jose, ca 95131 ? usa ? tel +1 (408) 944 - 0800 ? fax + 1 (408) 474 - 1000 ? http://www.micrel.com june 2010 m9999 - 063010-a hbwhelp@micrel.com or (408) 955 - 1690 general description the sy88808l high - speed transceiver is optimized for active copper cable assembly, backplane, and transmission line data - path management applications. the sy88808l is capable of equalizing serial data up to 10.3gbps across up to 36 in ches of fr4 or 10 meters of 26 awg cable. the sy88808l differential inputs can directly interface to any differential signal as small as 150mv pk . both channels of the transceiver have programmable eq on the receiving end. the output of the transmitter can be programmed t o provide an output swing from 10 0mv pk to 350mv pk . the output is optimized to drive into a 50 ? load. the anylength equalization circuit in the receiver can be programmed to optimize the eye of the data signal received from 0? to 36? of fr4 or 0m to 10m of 26awg cable. unlike discrete eq settings, patent - pending anylength eq provides optimal results as well as saves power. the sy88808l operates at 3.3v 5% supply and its operation is guaranteed over the commercial temperature range of 0c to +70c. the sy88808l is part of micrel?s high - speed, precision edge ? product line. data sheets and support documentation can be found on micrel?s web site at www.micrel.com . precision edge ? features ? programmable e qualizing network optimize incoming data pattern ? e quali zation is optimized for any transmission length ? receives up to 36? fr4 pcb trace, or 10m of cable ? 1gbps through 10.3gbps data rate throughput ? flexible i/o: ? ac - coupled inputs and outputs ? 50 ? source- terminated cml outputs minimize round - trip reflections ? wide input voltage range: 15 0mv pk to 35 0mv pk ? output disable ? input loss - of - signal ? hysteresis included ? 3.3v 5% supply voltage ? 0c to +70c temperature range ? available in 28 - pin (4mm x 4mm) qfn package applications ? active copper cable assembly ? ate, t&m backplane management ? serial backplane management ? combination fr4+cable+interconnect receiver ? fibre channel, e thernet , sonet/sdh data transmission
micrel, inc. sy88808l june 2010 2 m9999 - 063010-a hbwhelp@micrel.com or (408) 955 - 1690 typical application circuit functio nal block diagram
micrel, inc. sy88808l june 2010 3 m9999 - 063010-a hbwhelp@micrel.com or (408) 955 - 1690 ordering information (1) part number package type operating range package marking SY88808LMH qfn -28 commercial sy88808l with pb - free bar- line indicator SY88808LMHtr (2) qfn -28 commercial sy88808l with pb - free bar- line indicator note s : 1. contact factory for die availability. dice are guaranteed at t a = 25 c, dc electricals only . 2. tape and reel. pin configuration 28- pin qfn
micrel, inc. sy88808l june 2010 4 m9999 - 063010-a hbwhelp@micrel.com or (408) 955 - 1690 pin description pin number pin name pin function 1, 28 t xq, / t xq differential transmitter output: this cml output pair is designed to drive 50 ? signals with variable output swing. 2, 13, 16, 27 vcc positive power supply: connect to 3.3v power supply. bypass with 0.1 f||0.01 f low - esr capacitors as close to vcc pins as possible. 3, 19 nc no connect. 4 txsw programmable swing input pin: this in put pin allows the user to set variable output swing. this pin can be programmed via external potentiometer (or a resistor) to output a swing from 100mv pk to 350mv pk . see ?programmable tx output swing? table for details. 5, 10, 11, 12 24, 25 rxeqdc, rxeq mf, rxeqhf, rxequhf, txeqhf, txequhf programmable eq: equalization circuit can recover degraded signals after long traces of fr4 board. equalization can be programmed via an external potentiometer (or resistor). this equalization scheme is optimized to rec over degraded signal from any length of transmission line. the receiver of the rx channel can equalize up to 36? fr4 or 1 0 m 26awg cable. the receiver of the tx channel can equalize up to 9? fr4 or 3 m 26awg cable. rxeqdc, rxeqmf, rxeqhf, and rxe quhf control dc, medium, high, and ultra high components of input data signals of rx channel respectively. txeqhf and txequhf control high and ultra high components of input data signals of tx channel respectively. see ?programmabl e equalization? table for details. 6, 9, 20, 23 gnd, exposed pad ground: ground pins and exposed pad must be connected to the same ground plane. 7, 8 rxin, /rxin differential receiver input: this input pair is the differential input to the receive channel. it accepts differential ac - cou pled signals as small as 150mv pk at the input of the transmission line. the input signal is fed in to an equalization circuit. the loss - of - signal (los) level includes a small amount of hysteresis to prevent the los output from oscillating when no signal is present. 14, 15 / rxq, rxq differential receiver output: this cml output pair is designed to drive 250mv pk swing in to 50?. 17, 26 /rxen, /txen single - ended input: ttl/cmos compatible control input for the output pairs. the disable pins are internally c onnected to a 25k ? pull - up resistor and will default to a logic high state (disable) if left open. when disabled, the q goes low, and /q goes high. default threshold is v cc /2. 18 los single - ended output: this ttl/cmos output signal switches low when the i nput signal of the receiver channel is valid and switches high when the input signal is not valid. los is an open- collector output. 21, 22 txin, /txin differential transmitter input: this input pair is the differential input to the transmit channel and accepts differential ac - coupled signals which are fed in to equalization circuit. input swing is recommended to be 15 0mv pk at the input of the transmission line to ensure valid outputs.
micrel, inc. sy88808l june 2010 5 m9999 - 063010-a hbwhelp@micrel.com or (408) 955 - 1690 tx output swing table output swing (mv pk ) 100 250 350 txsw ( ? ) open 27 13 rx channel programmable equalization table transmission medium fr4 (1) cable (2) length 36? 24? 18? 9? 10m rxeqdc ( ? ) 95 45 35 25 60 rxeqmf ( ? ) 305 330 215 230 330 rxeqhf ( ? ) 180 195 290 1120 0 rxequhf ( ? ) 50 105 260 850 0 tx channel prog rammable equalization table transmission medium fr4 (1) length 9? 0? txeqhf( ? ) 1k 1m txequhf ( ? ) 1m 1m notes: 1. 6mil wide 6.25mil thick strip line traces on fr4i room temperature; 1010 clock pattern and prbs - 23 data pattern . 2. 26 awg , 10m leoni paralink ? 11 cable, l45468 - j14 - c245; 1010 clock pattern and prbs - 23 data pattern .
micrel, inc. sy88808l june 2010 6 m9999 - 063010-a hbwhelp@micrel.com or (408) 955 - 1690 absolute maximum ratings (1) supply voltage (v cc ) .................................... ? 0.5v to + 4.0v input voltage (v in ) . ........................................... ? 0.5v to v cc cml output voltage (v out ) ............... v cc - 1.0v to v cc +0.5v input current source or sink cur rent on (in, /in) ................... 50ma maximum operating junction temperature ............. + 125c lead temperature (soldering, 20 sec.) ..................... + 260c storage temperature (ts) ........................ ? 65c to + 150 c operating ratings (2) supply v oltage (v in ) ................................. + 3.14 v to + 3.46 v ambient temperature (t a ) .............................. 0c to + 70c p ackage thermal resistance (3) qfn ( ja ) still - air ......................................................... 61 c/w qfn ( jb ) junction - to - board ........................................ 30 c/w electrical characteristics ( 4 ) vcc = 3.3v 5%, t a = 0 c to + 7 0 c, unless otherwise noted. symbol parameter condition min . typ . max . units v cc power supply 3. 14 3.3 3.46 v i ee power supply current maximum v cc , includes 50? internal source resistors, no external load current, maximum eq settings. 1 8 0 235 ma power includes 50 ? internal source resistors, no external load current, maximum eq settings. 5 94 814 mw r diff_in input resistance (in -to - /in) 90 100 110 ? v in input voltage swing rxin, txin (note 5 ) 150 350 mv pk v diff_in differential input voltage swing ? in -/in ? 300 700 mv p p los loss -of - signal levels los de - assert (note 6) 75 90 mv pk los asser t (note 6) 45 55 hysteresis 3 db outputs dc electrical characteristics (5) v cc = 3.3v 5%; v ee = 0v; t a = 0c to + 70c; r l = 100 ? across output pair; unless otherwise stated. symbol parameter condition min . typ . max . units v swing output swing rxo ut 200 250 300 mv pk txout, programmable swing 100 350 r out output resistance 45 50 55 ?
micrel, inc. sy88808l june 2010 7 m9999 - 063010-a hbwhelp@micrel.com or (408) 955 - 1690 lvttl/cmos dc electrical characteristics ( 7 ) v cc = +3.3v 5%, t a = 0c to +70c, unless otherwise stated. symbol parameter condition min . typ . max . units v ih input high voltage 2 v v il input low voltage 0.8 v i ih input high current ? 125 30 a i il input low current ? 300 a ac electrical characteristics ( 8 ) v cc = 3.3v 5%; v ee = 0v; t a = 0c to +70c; r l = 100 ? across output pair; unless otherwise stated. symbol parameter condition min . typ . max . units freq data rate throughput nrz data 1 10.3 gbps t pd differential propagation delay rxin -to - rxq 150 250 450 ps txin -to - txq 150 250 450 t skew part -to - part skew note 9 200 ps t /en txq enable/disable time /txen 450 600 ps rxq enable/disable time /rxen 450 600 t jitter deterministic jitter (dj) note 10 10 ps pp total jitter (tj) note 11 20 los delay los delay t_los_on and t_los_off (see figur e 1) 100 s t r , t f output rise/fall time (20% to 80%) at full output swing 20 30 6 0 ps notes: 1. permanent device damage may occur if absolute maximum ratings are exceeded. this is a stress rating only and func tional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. expos ure to 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 ope rating ratings. 3. package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the pcb. ja and jb values are determined for a 4 - layer board 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 . t j < 125 c. 5. measured at input of the transmission line. 6. measured with 101010 pattern at 10.3gbps. 7. the circuit is designe d to meet the dc specifications, shown in the above table , after thermal equilibrium has been established. t j < 125 c. 8. high - frequency ac - parameters are guaranteed by design and characterization. 9. part - to - part skew is defined for two parts with identical power supply voltages at the same temperature and with no skew of the edges at the respective inputs. 10. deterministic jitter is measured with 2 11 - 1 prbs pattern at 10.3gbps. 11. tota l jitter is measured with 2 11 - 1 prbs pattern at 10.3gbps .
micrel, inc. sy88808l june 2010 8 m9999 - 063010-a hbwhelp@micrel.com or (408) 955 - 1690 typical operating characteristics v cc = 3.3v 5%; v in = 35 0mv; t a = 25 c, r l = 100 across outpu t pair, unless otherwise stated. transmission medium: 36in fr4 transmission medium: 10 m, 26awg cable test set -up
micrel, inc. sy88808l june 2010 9 m9999 - 063010-a hbwhelp@micrel.com or (408) 955 - 1690 timing diagram figure 1. los delay output interface applications figure 2. cml ac - coupled termination related product and support information part number function data sheet link sy56216r 6.4gbps, low - voltage cm l dual channel eq buffer www.micrel.com/_pdf/hbw/sy56216r.pdf hbw solutions new products and applications www.micrel .com/product - info/products/solutions.shtml
micrel, inc. sy88808l june 2010 10 m9999 - 063010-a hbwhelp@micrel.com or (408) 955 - 1690 package information 28- pin qfn 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 responsib ility is assumed 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, dev ices or systems where malfunction of a product can reasonably be expected to result in personal injury. life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whos e failure to perform can be reasonably expected to result in a significant injury to the user. a purchaser?s use or sale of micrel products for use in life support appliances, devices or systems is a purchaser?s own risk a nd purchaser agrees to fully indem nify micrel for any damages resulting from such use or sale. ? 2010 micrel, incorporated.
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