1 electronic components august 16, 2002 g td - 18481 rev. 4.0 kgl4125hw/gw preliminary 10.7 gbps ea modulator driver ic 1 / 6 features ? low power : 0.8 w (@minimum amplitude, no offset ) ? input interface : cml compatible / ac coupled ? high sensitive input : 0.15 vpp (differential) ? output amplitude control : 0.8 vpp to 2.3 vpp ? x - point controllability : 35 % to 80 % ? maximum output offset : 1.3 v ( @50 w ) ? logic inversion function function diagram absolute maximum ra tings parameter symbol min max unit note supply voltage vs - 6.5 0.3 v x - point control voltage vb1 vs - 5.0 (min. - 6.5) vs+3.0 (max. 0.3) v x - point reference voltage v b2 vs - 5.0 (min. - 6.5) vs+3.0 (max. 0.3) v output amplitude control voltage vc1 - 6.5 vs+1.6 (max. 0.3) v output bias control voltage vc2 - 6.5 vs+2.6 (max. 0.3) v logic inversion control voltage vpn - 6.5 0.3 v input voltage vin(dc) - 2 0.6 v dc coupl ed input amplitude vin - 1.5 vpp ac coupled operating temperature at package base ts - 1 0 100 c storage temperature tst - 40 125 c in in b out logic inversion cro ssing point control vpn vs vb1 vb2 vc1 vc2
gtd - 18481 rev. 4.0 1 electronic components kgl4125hw/gw 2 / 6 recommended operatin g conditions parameter symbol min typ max unit note supply voltage vs - 5.5 - 5.2 - 4.9 v x - point control voltage vb1 vs+0.4 - vs+2.5 v x - point reference voltage vb2 1) - 4.2 - 3.95 - 3.6 v output amplitude control voltage vc1 vs - vs+1.2 v output bias control voltage vc2 vs - vs+2.4 v vs - vs+0.5 v positive output logic inversion control voltage vpn 2) - 0.5 - 0 v negative output input high voltage vhin - 0.2 - 0 v dc coupled single - ended input amplitude 0.25 - 1.2 vpp ac coupled differential input amplitude vin 0.15 - 1.2 vpp dc/ac coupled operating temperature at package base ts 0 - 85 c input interface dc coupled(cml) or ac coupled (external blocking capacitor is required) 3) output interface dc coupled 1) vb2 can be open or biased by the external circuit. for vb2 opened, vb2 is biased at about ? 3.95v ( vs= - 5.2v ). 2) for vpn opened, output polarity is positive. 3) for dc coupled, input must be differential. for ac coupled, differential or single - ended inputs are available. electrical character istics output polarity : positive parameter symbol condition mi n typ max unit supply current iss minimum amplitude, no offset (vc1=vc2=vs) - - 165 ma output amplitude (min) vo (min) 50 w load - 0.8 0.9 vpp output amplitude (max) vo (max) 50 w load 2.2 2.3 - vpp output high voltage v (hi) 1) 50 w load, no offset - 0.5 - 0 v output high voltage offset vo (ofs) 1) 50 w load 1.1 1.3 - v output low voltage v (lo) 50 w load, maximum amplitude, maximum offset - - - 3.3 v high xph 75 80 % x - point control range low xpl 50 w load, nrz - 35 40 % x - point stability del ( xp) 50 w load, 0 ? 70 c - 10 - 10 % output rise/fall time tr/tf 50 w load, 20%/80% - 25 35 ps kgl4125hw 100khz ? 10 ghz - 13 - db input return loss s11 KGL4125GW 100khz ? 10 ghz - 10 - db 1) output high voltage with offset control is defined by ? v(hi) ? vo(ofs) ? .
gtd - 18481 rev. 4.0 1 electronic components kgl4125hw/gw 3 / 6 package dimensions(k gl4125hw) note. this package is non - hermetic. pin connection no. symbol note 1 gnd ground 2 vpn logic inversion control port 3 gnd ground 4 gnd ground 5 gnd ground 6 gnd ground 7 gnd ground 8 gnd ground 9 gnd ground 10 out signal o utput port 11 gnd ground 12 gnd ground 13 gnd ground 14 gnd ground 15 gnd ground 16 gnd ground 17 gnd ground 18 vc2 output bias control port 19 vc1 output amplitude control port 20 vs supply voltage port 21 vs supply voltage port 22 vb2 x - point reference port 23 vb1 x - point control port 24 gnd ground 25 gnd ground 26 gnd ground 27 gnd ground 28 inb inverted input port 29 gnd ground 30 gnd ground 31 in signal input port 32 gnd ground 4.445 unit : mm (top view) 0.4 0.125 0.62 0.5 28 - 0.635 7 .0 0.2 7.0 0.2 25 32 24 17 16 9 1.5 0. 25 1 8 k4125 1 hw (lot no.)
gtd - 18481 rev. 4.0 1 electronic components kgl4125hw/gw 4 / 6 package dimensions(k gl4125gw) note. this package is non - hermetic. pin co nnection no. symbol note 1 gnd ground 2 vpn logic inversion control port 3 gnd ground 4 gnd ground 5 gnd ground 6 gnd ground 7 gnd ground 8 gnd ground 9 gnd ground 10 out signal output port 11 gnd ground 12 gnd ground 13 gnd ground 14 gnd gr ound 15 gnd ground 16 gnd ground 17 gnd ground 18 vc2 output bias control port 19 vc1 output amplitude control port 20 vs supply voltage port 21 vs supply voltage port 22 vb2 x - point reference port 23 vb1 x - point control port 24 gnd ground 25 gn d ground 26 gnd ground 27 gnd ground 28 inb inverted input port 29 gnd ground 30 gnd ground 31 in signal input port 32 gnd ground 9.6 0.3 sq 8.6 sq 8.2 sq 6.5 sq 0.1 0.25 0.125 0.775 0.4 0.62 0.5 7 0.2 sq 28 - 0.635 32 - 0.2 4.445 5.2 sq k4125 1 gw 1 8 16 9 24 17 25 32 unit : mm (top view)
gtd - 18481 rev. 4.0 1 electronic components kgl4125hw/gw 5 / 6 typical application application note 1. for stable operation; 1 - 1. to prevent a dependence of ? x - point ? on the supp ly 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 voltag e vs, control the voltage of ? vc1 ? , so that the voltage difference ? vc1 ? vs ? is constant. 1 - 3. to prevent a dependence of ? output bias control voltage ? on supply voltage vs, control the voltage of ? vc2 ? , so that the voltage difference ? vc2 ? vs ? is constant. 2. power - up /shut - down sequence ; for power - up, supply control voltages (vb1, (vb2), vc1, vc2) at first, then vs or supply all simultaneously. for shut - down, vs at first, then control voltages or shut down all simultaneously. . cus tomer does not need to care about the sequence for the control voltages (vb1,(vb2),vc1,vc2). output bias control data input in out gnd blocking capacitor ex. 0.1 m f chip capacitor 3 0.1 m f supply volta ge output amplitude control x - point reference vb1 kgl4125hw/gw eam 50 w x - p oint control logic inversion control data - bar input inb vpn vb2 vs vc1 vc2
gtd - 18481 rev. 4.0 1 electronic components kgl4125hw/gw 6 / 6 safety and handring information on g a a s devices arsenic compound (gaas devices) the product contains arsenic (as) as a compound. this material is stable for norm al 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 chemi cal 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 in cluding, 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 indemni ty 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 infringem ent 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 eq uipment, 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 appl ication 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 lif e - 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 approp riate 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 200 2 oki electric industry co., ltd.
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