semiconductor technical data order this document by mc10sx1127/d 1 rev 0 ? motorola, inc. 1999 08/1999
the mc10sx1127 is an integrated limiting amplifier for high frequency fiber optic applications. the device interfaces directly to the transimpedance amplifier of a typical optical to electrical conversion portion of a fiber optic link. with data rate capabilities in the 2.5gb/s range, the high gain limiting amplification of the sx1127 is ideal for high speed fiber optic applications like sonet/sdm, atm, fddi, fibre channel or serial hippi. the c azp and c azn inputs to the limiting amplifier provide an auto-zero function to effectively cancel any input offset voltage present in the amplifier. the sx1127 incorporates a programmable level detect function to identify when the input signal has been lost. this information can be fed back to the disable input of the device to maintain stability under loss of signal conditions. using the v set pin the sensitivity of the level detect can be adjusted. the c ld input is used to filter the level detect input so that random noise spikes are filtered out. the mc10sx1127 is compatible with mecl10h logic levels. ? wideband operation: 50mhz to 1.8ghz ? programmable input signal level detection ? operation with single +3.3v to +5v or standard ecl supply ? standard 16-lead soic package and 16 tssop package ? fully differential design to minimize noise affects ? 10kh compatible figure 1. mc10sx1127 block diagram los los d out d out reference ecl buffer level detect limiting amplifier ecl buffer disable disable c ld d in d in v ref v set c azp c azn 15 16 14 13 12 11 10 2 1 34567 v set 9 8 v ref v cce d out d out gnd e los los c azn c azp gnd a d in d in v cca c ld disable figure 2. 16lead pinout (top view) this document contains information on a product under development. motorola reserves the right to change or discontinue this product without notice.
fiber optic post amplifier d suffix plastic soic package case 751b-05 16 tssop package case 948f01
mc10sx1127 motorola eclinps and eclinps lite dl140 e rev 3 2 function table pin function c azn auto-zero capacitor pin. a capacitor between this pin and c azp cancels any offset inherent to the limiting amplifier. c azp auto-zero capacitor pin. a capacitor between this pin and c azn cancels any offset inherent to the limiting amplifier. gnd a analog ground pin. ground for pecl operation or 3.3v to 5v for standard ecl operation. gnd a and gnd e must be at the same potential. d in , d in differential data input. v cca analog power supply pin. +3.3v to +5v for pecl operation or ground for standard ecl operation. v cca and v cce must be at the same potential. c ld filter capacitor for the level detect comparator. capacitor should be connected to v cca . disable when asserted low, or left open and pulled low via the input pulldown resistor, the output buffer will be enabled and will respond to the input stimulus on the d in input. forcing disable high will force the d out output low and its complimentary output high. los, los differential loss of signal. los will go high when the input signal falls below (v set /100) mv p-p . gnd e digital ground pin. ground for pecl operation or 3.3v to 5v for standard ecl operation. gnd a and gnd e must be at the same potential. d out , d out differential data outputs. v cce digital power supply pin. +3.3v to +5v for pecl operation or ground for standard ecl operation. v cca and v cce must be at the same potential. v ref reference voltage for threshold level set voltage division network (v cc 1.2v). v set input threshold level detect setting input. input generated from voltage divider between v ref and gnd a . figure 3. typical operating circuit 16 1 c azn v set 15 2 c azp v ref 14 3 gnd a v cce 13 4 d in d out 12 5 d in d out 11 6 v cca gnd e 10 7 c ld los 9 8 disable los r1 r2 50 data out 50 5v 3v 50 level detect out 50 c bypass c az c in c in data in 5v c az c bypass
mc10sx1127 eclinps and eclinps lite dl140 e rev 3 3 motorola coupling capacitors the sx1127 inputs must be ac coupled to allow proper operation of the offset correction function. the coupling capacitors, c in , must be large enough to pass the lowest input frequency of interest. c in 1 2 (r in )(f low ) where r in = input resistance = 5000 w f low = lowest frequency. autozero capacitors a feedback amplifier is used to cancel the offset voltage of the forward signal path, so the input to the internal ecl comparator is at its toggle point in the absence of any input signal. the time constant of the cancelling circuitry is set by an external capacitor (c az ) connected between pins 1 and 2. the formula for the calculation of the autozero capacitor is: c az 150 2 (r az )(f low ) where r az = internal driving impedance = 290k w f low = lowest frequency. input signal level detector the sx1127 allows for user programmable input signal leveldetection and can automatically disable the switching of its ecl data output if the input level is below a set threshold. this prevents the outputs from reacting to noise in the absence of a valid input signal, and ensures that data will only be transmitted when the signaltonoise ratio is sufficient for low biterrorrate system operation. complimentary ecl flags (los and losb) indicate whether the input signal is above or below the desired threshold level. in the level detect system, the input signal is amplified and rectified before being compared to a programmable reference. a filter is included to prevent noise spikes from triggering the leveldetector. the filter has a nominal 1 m s time constant, and additional filtering can be achieved by using an external capacitor (c ld ) from pin 7 to v cca (the internal driving impedance is nominally 28k). the formula for the calculation of the c ld capacitor is: c ld t r z where r z = internal driving impedance = 28k w t = los filter time constant. dc characteristics (gnd a = gnd e = ground; v cca = v cce = 4.5v to 5.5v) symbol characteristic min typ max unit condition v in input signal voltage (d in ) single-ended tbd 1.5 v p-p note 1. v os input offset voltage 50 m v v n input rms noise 225 m v v th input level detect programmability 8.0 20 mv p-p v hys level detect hysteresis 1.5 2.5 7.0 db note 2. i ih input high current disable 150 m a i cc power supply current 33 45 ma 1. this device functions with v in min = 6mv pp , but with increased ber (see ber data). 2. this device has an anomoly in v hys when 0.65 < v set < 0.75v. operation in this region is not recommended. (see figure 5) 0 5 10 15 20 25 30 35 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 vset (v) v figure 4. los versus vset (t a = 25 c) 0 1 2 3 4 5 6 7 8 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 vset (v) (db) figure 5. los hysteresis (t a = 25 c) hys v in (mvpp) input detect level (los 1 0)
mc10sx1127 motorola eclinps and eclinps lite dl140 e rev 3 4 i/o dc characteristics (note 3.) 40 c 0 c 25 c 85 c symbol characteristic min max min max min max min max unit v oh output high voltage v cc = 4.5 to 5.5v v cc = 5.0v (note 4.) 1080 3920 890 4110 1020 3980 840 4160 980 4020 810 4190 910 4090 720 4280 mv v ol output low voltage v cc = 4.5 to 5.5v v cc = 5.0v (note 4.) 1950 3050 1650 3350 1950 3050 1630 3370 1950 3050 1630 3370 1950 3050 1595 3405 mv v ih input high voltage (note 5.) v cc = 4.5 to 5.5v v cc = 5.0v (note 4.) 1230 3770 890 4110 1170 3830 840 4160 1130 3870 810 4190 1060 3940 720 4280 mv v il input low voltage (note 5.) v cc = 4.5 to 5.5v v cc = 5.0v (note 4.) 1950 3050 1500 3500 1950 3050 1480 3520 1950 3050 1480 3520 1950 3050 1445 3555 mv i il input low current (note 5.) 0.5 0.5 0.5 0.3 m a 3. 10sx circuits are designed to meet the dc specifications shown in the table after thermal equilibrium has been established. the circuit is in a test socket or mounted on a printed circuit board and transverse airflow greater than 500lfpm is maintained. outputs are terminated through a 50 w resistor to 2.0 volts except where otherwise specified on the individual data sheets. 4. limits hold for v cc = 5.0v only. parametric values will vary 1:1 with any variation of v cc . 5. parametric values for the disable input only. ac characteristics (v cca = v cce = 4.5v to 5.5v) symbol characteristic min typ max unit condition bw min lower 3db bandwidth 50 mhz bw max upper 3db bandwidth 1.8 ghz t pwd pulse width distortion 70 ps t r , t f rise/fall times 150 250 650 ps 20% 80% r az auto-zero output resistance 200 325 450 k w r f level detect filter resistance 14 25 41 k w t ld level detect time constant 0.5 4.0 m s t jitter total jitter tbd ps
mc10sx1127 eclinps and eclinps lite dl140 e rev 3 5 motorola outline dimensions d suffix plastic soic package case 751b05 issue j 0.25 (0.010) t b a m s s min min max max millimeters inches dim a b c d f g j k m p r 9.80 3.80 1.35 0.35 0.40 0.19 0.10 0 5.80 0.25 10.00 4.00 1.75 0.49 1.25 0.25 0.25 7 6.20 0.50 0.386 0.150 0.054 0.014 0.016 0.008 0.004 0 0.229 0.010 0.393 0.157 0.068 0.019 0.049 0.009 0.009 7 0.244 0.019 1.27 bsc 0.050 bsc notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimension a and b do not include mold protrusion. 4. maximum mold protrusion 0.15 (0.006) per side. 5. dimension d does not include dambar protrusion. allowable dambar protrusion shall be 0.127 (0.005) total in excess of the d dimension at maximum material condition. 1 8 9 16 -a- -b- d 16 pl k c g -t- seating plane r x 45 m j f p 8 pl 0.25 (0.010) b m m ??? ??? ??? dim min max min max inches millimeters a 4.90 5.10 0.193 0.200 b 4.30 4.50 0.169 0.177 c 1.20 0.047 d 0.05 0.15 0.002 0.006 f 0.50 0.75 0.020 0.030 g 0.65 bsc 0.026 bsc h 0.18 0.28 0.007 0.011 j 0.09 0.20 0.004 0.008 j1 0.09 0.16 0.004 0.006 k 0.19 0.30 0.007 0.012 k1 0.19 0.25 0.007 0.010 l 6.40 bsc 0.252 bsc m 0 8 0 8 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimension a does not include mold flash. protrusions or gate burrs. mold flash or gate burrs shall not exceed 0.15 (0.006) per side. 4. dimension b does not include interlead flash or protrusion. interlead flash or protrusion shall not exceed 0.25 (0.010) per side. 5. dimension k does not include dambar protrusion. allowable dambar protrusion shall be 0.08 (0.003) total in excess of the k dimension at maximum material condition. 6. terminal numbers are shown for reference only. 7. dimension a and b are to be determined at datum plane w. section nn seating plane ident. pin 1 1 8 16 9 detail e j j1 b c d a k k1 h g detail e f m l 2x l/2 u s u 0.15 (0.006) t s u 0.15 (0.006) t s u m 0.10 (0.004) v s t 0.10 (0.004) t v w 0.25 (0.010) 16x ref k n n 16 tssop package case 948f01 issue o
mc10sx1127 motorola eclinps and eclinps lite dl140 e rev 3 6 notes
mc10sx1127 eclinps and eclinps lite dl140 e rev 3 7 motorola notes
mc10sx1127 motorola eclinps and eclinps lite dl140 e rev 3 8 motorola reserves the right to make changes without further notice to any products herein. motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. atypicalo parameters which may be provided in motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. motorola does not convey any license under its patent rights nor the rights of others. motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the motorola product could create a situation where personal injury or death may occur. should buyer purchase or use motorola products for any such unintended or unauthorized application, buyer shall indemnify and hold motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that motorola was negligent regarding the design or manufacture of the part. motorola and are registered trademarks of motorola, inc. motorola, inc. is an equal opportunity/affirmative action employer. mfax is a trademark of motorola, inc. how to reach us: usa / europe / locations not listed : motorola literature distribution; japan : motorola japan ltd.; spd, strategic planning office, 141, p.o. box 5405, denver, colorado 80217. 13036752140 or 18004412447 4321 nishigotanda, shinagawaku, tokyo, japan. 81354878488 customer focus center: 18005216274 mfax ? : rmfax0@email.sps.mot.com touchtone 1 6022446609 asia / pacific : motorola semiconductors h.k. ltd.; silicon harbour centre, motorola fax back system us & canada only 18007741848 2, dai king street, tai po industrial estate, tai po, n.t., hong kong. http://sps.motorola.com/mfax/ 85226668334 home page : http://motorola.com/sps/ mc10sx1127/d ?
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