1 electronic com p onents november 6, 2002 gtd-18442 rev. 5.0 KGL4126F 10.7 gbps mach-zehnder modulator driver ic 1/9 features ? high output voltage: maximum amplitude > 5.0 vpp ? x-point control function ? output amplitude control function function diagram absolute maximum ratings parameter symbol min max unit note supply voltage vs -6.5 0.3 v x-point control voltage vb1 vs-4.5 (min. -6.5) vs+2.4 (max. 0.3) v output amplitude control voltage vc1 -6.5 vs+1.2 (max. 0.3) v dc bias for output stage amplifier vd 0 5.0 v operating temperature at package base ts -10 100 c storage temperature tst -40 125 c recommended operating conditions parameter symbol min typ max unit supply voltage vs -5.46 -4.94 v supply voltage *1,2 vd 2.0 3.5 v x-point control voltage vb1 vs+0.8 vs+2.2 v output amplitude control voltage *1 vc1 vs vs+1.0 v operating temperature at package base ts 0 85 c input interface ac coupled (external blocking capacitor is required) output interface ac coupled (external bias-t is required for vd) *1 output amplitude can be controlled by vc1 and vd voltage. we recommend to control output amplitude by vd voltage. ( vd is more effective than vc1. ) *2 vd is supplied at output port using external bias-t. out in vb1 vb2 vs vc1 inb
gtd-18442 rev. 5.0 1 electronic components KGL4126F 2/9 electrical characteristics parameter symbol condition min typ max unit input data rate nrz 10.7 gbps supply current of vs iss 210 250 ma supply current of vd i d supply dc bias by bias-t 70 100 ma input amplitude vin differential (ac coupled) 0.25 1 vpp single-ended (ac coupled) 0.5 1 vpp output amplitude (max) vo (max) 50 ? load,(ac coupled) 5.0 vpp x-point control xp nrz, 50 ? load 40 60 % output rise/fall time tr/tf 50 ? load 20%-80% 40 ps input return loss s11 100khz?10 ghz 13 db package dimensions 9.6 120.2 8.6 120.2 20-0.3 5.08 16-1.27 15 6 10 11 15 16 20 0.5 0.5 1.5 0.6 0.125 11 2 (top view) (unit : mm) KGL4126F 1 japan xxx pinconnection no. symbol note 1 gnd ground 2 gnd ground 3 gnd ground 4 gnd ground 5 gnd ground 6 gnd ground 7 gnd ground 8 gnd ground 9 out. signal output and dc bias port 10 gnd ground 11 gnd ground 12 vc1 output amplitude control port 13 vs supply voltage port 14 vb2 input termination port 15 vb1 x-point control and inverted input termination port 16 gnd ground 17 inb inverted input terminal 18 gnd ground 19 in signal input terminal 20 gnd ground
gtd-18442 rev. 5.0 1 electronic components KGL4126F 3/9 ac characteristics test circuit in out gnd blocking capacitor 0.1 f vb1 KGL4126F inb vb2 vs vc1 bias-t oscillo -scope pulse pattern generator fc=7.5ghz bessel filter power supply (vb1) power supply (vs) power supply (vc1) 0.1 f 0.1 f 0.1 f 50 ? transmission line 50 ? transmission line power supply (vd)
gtd-18442 rev. 5.0 1 electronic components KGL4126F 4/9 typical characteristics ( waveform ) measured condition ( @ 25 c ) display factor v : 1.0v/div, h : 20 ps/div, offset : 0v input signal 10.7gbps, nrz, pn31, differential 0.25vpp, ac coupled tr/tf(20-80%) ? 40ps ( through 7.5ghz bessel filters ) waveform @10.7gbps operate @4.0vpp @4.5vpp @5.0vpp note jitterp-p means ? 6 jitter(rms) ?. vs : -5.0v iss : 207.7ma vb1 : -3.75v crossing-point : 50.1% vc1 : -4.0v vd : 2.475v i d : 52.4ma power : 1.168w amplitude: 4.003vpp tr : 27.6ps tf : 27.1ps jitterp-p : 10.9ps vs : -5.0v iss : 207.7ma vb1 : -3.74v crossing-point [%] : 50.2% vc1 : -4.0v vd : 2.83v i d : 60.1ma power : 1.208w amplitude: 4.506vpp tr : 28.0ps tf : 28.0ps jitterp-p : 10.8ps vs : -5.0v iss : 207.6ma vb1 : -3.74v crossing-point : 50.1% vc1 : -4.0v vd : 3.22v i d : 67.3ma power : 1.255w amplitude: 5.005vpp tr : 29.3ps tf : 28.4ps jitterp-p : 10.9ps
gtd-18442 rev. 5.0 1 electronic components KGL4126F 5/9 typical characteristics ( supply voltage dependence : vd ) measured condition ( @25 c ) input signal 10.7gbps nrz prbs31, differential 0.25vpp vs=-5.0v, vb1@xp ? 50%, vc1=-4.0v 3.0 3.5 4.0 4.5 5.0 5.5 6.0 2.0 2.5 3.0 3.5 4.0 v d (v) amplitude (vpp) amplitude 0 10 20 30 40 2.0 2.5 3.0 3.5 4.0 v d (v) tr/ tf (ps ) ris e time fall time rise/fall time (20%-80%) 0 5 10 15 20 2.0 2.5 3.0 3.5 4.0 v d (v) jitterp-p (ps) jitterp-p 0 50 100 150 200 250 300 2 2.5 3 3.5 4 v d (v) supply current (ma) is s id supply current
gtd-18442 rev. 5.0 1 electronic components KGL4126F 6/9 typical characteristics ( supply voltage dependence : vs ) measured condition ( @25 c ) input signal 10.7gbps nrz prbs31, differential 0.25vpp vb1@xp ? 50%, vc1=-4.0v amplitude 3.0 3.5 4.0 4.5 5.0 5.5 6.0 -5.5 -5.4 -5.3 -5.2 -5.1 -5.0 -4.9 -4.8 vs (v) amplitude (vpp) vd=3.5 v vd=2.0 v jitterp-p 0 5 10 15 20 -5.5 -5.4 -5.3 -5.2 -5.1 -5 -4.9 -4.8 vs (v) jitterp-p (ps) vd=3.5 v vd=2.0 v supply current (iss) 200 210 220 230 240 -5.5 -5.4 -5.3 -5.2 -5.1 -5.0 -4.9 -4.8 vs (v) iss (vpp) vd=3.5 v vd=2.0 v supply current (i d ) 30 40 50 60 70 80 -5.5 -5.4 -5.3 -5.2 -5.1 -5.0 -4.9 -4.8 vs (v) i d (ma) vd=3.5 v vd=2.0 v rise time (20%-80%) 20 25 30 35 40 -5.5 -5.4 -5.3 -5.2 -5.1 -5.0 -4.9 -4.8 vs (v) tr (ps) vd=3.5 v vd=2.0 v fall time (20%-80%) 20 25 30 35 40 -5.5 -5.4 -5.3 -5.2 -5.1 -5.0 -4.9 -4.8 vs (v) tf (ps ) vd=3.5 v vd=2.0 v
gtd-18442 rev. 5.0 1 electronic components KGL4126F 7/9 typical characteristics ( temperature characteristics ) measured condition input signal 10.7gbps nrz prbs31, differential 0.25vpp vs=-5v, vc1=-4.0v, vb1:xp50%@25degc amplitude 3.0 3.5 4.0 4.5 5.0 5.5 6.0 0255075100 temperature@cuw of backseide of pkg (degc) amplitude(vpp) 5vpp@25degc 4vpp@25degc crossing point 40 45 50 55 60 0255075100 temperature@cuw of backseide of pkg (degc) crossing point (%) 5vpp@25degc 4vpp@25degc supply current (iss) 190 195 200 205 210 215 220 225 230 0255075100 temperature@cuw of backseide of pkg (degc) iss (ma) 5vpp@25degc 4vpp@25degc supply current (i d ) 40 45 50 55 60 65 70 0255075100 temperature@cuw of backseide of pkg (degc) i d (ma) 5vpp@25degc 4vpp@25degc rise time (20%-80%) 20 25 30 35 40 0255075100 temperature@cuw of backseide of pkg (degc) tr (ps) 5vpp@25degc 4vpp@25degc fall time (20%-80%) 20 25 30 35 40 0255075100 temperature@cuw of backseide of pkg (degc) tf (ps ) 5vpp@25degc 4vpp@25degc
gtd-18442 rev. 5.0 1 electronic components KGL4126F 8/9 typical application application note 1. for stable operation; 1-1. to prevent a dependence of ?x-point? on the supply voltage vs, (1) use an external voltage source of ?3.8v for ?vb2?, or (2) control the voltage of ?vb1?, so that the voltage difference ?vb1?vb2? is constant. 1-2. to prevent a dependence of ?output amplitude? on the supply voltage vs, control the voltage of ?vc1?, so that the voltage difference ?vc1?vs? is constant. 2. power-up/shut-down sequence; for power-up, supply control voltages (vb1, (vb2), vc1) at first, next vs, then vd. for shut-down, vd at first, next vs, then control voltages. customer does not need to care about the sequence for the control voltages (vb1,(vb2),vc1). supply voltage of vd data in p ut in vb1 vs vc1 out gnd chip capacitor 0. 1 amplitude control vb2 KGL4126F chip capacitor 0.1 inb inverted data in p ut x-point control chip capacitor 0. 1 mz mod. bias-t 50 ?
gtd-18442 rev. 5.0 1 electronic components KGL4126F 9/9 safety and handring information on gaas devices arsenic compound (gaas devices) the product contains arsenic (as) as a compound. this material is stable for normal use, however, its dust or vapor may be potentially hazardous to the human body. avoid ingestion, fracture, burning or chemical treatment to the product. ? do not put the product in your mouth. ? do not burn or destroy the product. ? do not perform chemical treatment for the product. keep laws and ordinances related to the disposal of the products. notice 1. the information contained herein can change without notice owing to product and/or technical improvements. before using the product, please make sure that the information being referred to is up-to-date. 2. the outline of action and examples for application circuits described herein have been chosen as an explanation for the standard action and performance of the product. when planning to use the product, please ensure that the external conditions are reflected in the actual circuit, assembly, and program designs. 3. when designing your product, please use our product below the specified maximum ratings and within the specified operating ranges including, but not limited to, operating voltage, power dissipation, and operating temperature. 4. oki assumes no responsibility or liability whatsoever for any failure or unusual or unexpected operation resulting from misuse, neglect, improper installation, repair, alteration or accident, improper handling, or unusual physical or electrical stress including, but not limited to, exposure to parameters beyond the specified maximum ratings or operation outside the specified operating range. 5. neither indemnity against nor license of a third party?s industrial and intellectual property right, etc. is granted by us in connection with the use of the product and/or the information and drawings contained herein. no responsibility is assumed by us for any infringement of a third party?s right which may result from the use thereof. 6. the products listed in this document are intended for use in general electronics equipment for commercial applications (e.g., office automation, communication equipment, measurement equipment, consumer electronics, etc.). these products are not authorized for use in any system or application that requires special or enhanced quality and reliability characteristics nor in any system or application where the failure of such system or application may result in the loss or damage of property, or death or injury to humans. such applications include, but are not limited to, traffic and automotive equipment, safety devices, aerospace equipment, nuclear power control, medical equipment, and life-support systems. 7. certain products in this document may need government approval before they can be exported to particular countries. the purchaser assumes the responsibility of determining the legality of export of these products and will take appropriate and necessary steps at their own expense for these. 8. no part of the contents contained herein may be reprinted or reproduced without our prior permission. copyright 2002 oki electric industry co., ltd.
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