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| PEDAKGA4133-01 1 Electronic Components Preliminary KGA4133 This version: Dec. 2001 12.5 Gbps Transimpedance Amplifier IC DESCRIPTION Oki's 12.5 Gbps transimpedance amplifier is fabricated 0.1 m gate length P-HEMTs for high-speed optical communication. The IC has a high overload and a wide band width. FEATURES * * * * * * * Transimpedance : 500 Sensitvity : < -18 dBm Overload : > +5 dBm Broadband Amplifier : > 10 GHz Low Noise Current : < 10 pA/Hz Group Delay : < 20 ps +3.3 V and -2 V Power Supply FUNCTION DIAGRAM Vdd IN OUT Vss ABSOLUTE MAXIMUM RATINGS (Ta = 25C) Parameters Supply Voltage Supply Voltage Input Current Storage Temperature Range Symbol Vdd Vss I(IN) TST Units V V mA C Rating 0 to +5 -5 to 0 6 -40 to 125 RECOMMENDED OPERATING CONDITIONS (Ta = 25C) Parameters Supply Voltage Supply Voltage Symbol Vdd Vss Units V V Min. +3.14 -2.1 Typ. +3.3 -2 Max. +3.46 -1.9 1/4 PEDAKGA4133-01 1 Electronic Components KGA4133 ELECTRICAL CHARACTERISTICS (Ta = 25C, Vdd = +3.3 V, VSS = -2 V, C(diode)+C(stray) = 0.20 pF) Parameters Transimpedance (I(IN)<450 A) Bandwidth (-3 dB) Transimpedance Flatness (300 kHz to 6 GHz) Equivalent Input Noise Current Optical Sensitivity Optical Overload Input Offset Voltage Group Delay Output Return Loss (<10 GHz) Power Consumption Operating Temperature Range *3) *1) *2) *2) Units GHz dB pA/Hz dBm dBm V ps dB W C Min. -- 10 -- -- -- -- -- -- -- -- 0 Typ. 500 10.5 -- 9.5 -18 +5 +0.16 -- -- 0.22 -- Max. -- -- 1 -- -- -- -- 20 10 -- +85 *1) Averaged Equivalent Input Noise Current from 130 MHz to 9.0 GHz. *2) Value of optical sensitivity is guaranteed by design, assuming responsivity of photo diode of 0.90 A/W. *3) At backside of die. EYE DIAGRAMS (12.5 Gbps PRBS 231-1 Input signal) Optical Input Power= -17[dBm] Optical Input Power = -10[dBm] (2.5mV/div) (10mV/div) (20ps/div) (20ps/div) Optical Input Power = 0[dBm] Optical Input Power = +5[dBm] (100mV/div) (140mV/div) (20ps/div) (20ps/div) 2/4 PEDAKGA4133-01 1 Electronic Components KGA4133 TYPICAL FREQUENCY RESPONSE AND GROUP DELAY (Vdd = +3.3 V, Vss = -2 V, Ta = 25C, C(PD) 0.20 pF, Responsivity of PD = 0.90 A/W) 57 Transimpedance [dB ] 54 51 48 45 42 39 36 33 0.13 0.5 1 5 Frequency [GHz] 10 20 Pin = -15[dBm] Zt = 52.6[dB ] @130MHz BW(-3dB) = 10.61GHz Power Consumption = 200[mW] 0 -5 -10 S22 [dB] -15 -20 -25 -30 -35 -40 50 Group Delay [ps] 0 -50 0 5 10 15 Frequency [GHz] 20 PAD LAYOUT (Dimensions in mm) 3/4 PEDAKGA4133-01 1 Electronic Components KGA4133 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. 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. 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. 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. 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. 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. No part of the contents contained herein may be reprinted or reproduced without our prior permission. Copyright 2001 Oki Electric Industry Co., Ltd. 3. 4. 5. 6. 7. 8. 4/4 |
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