AMT128503 1.25 Gb/s Integrated 850 nm MSM-TIA Data Sheet - Rev 1 FEATURES * * * * * * * 1.25 Gb/s Differential Output TIA 3.3V Operation Automatic Gain Control 850nm Photodetector with 100 mm x 100 mm Active Area Integrated MSM detector & TIA TO-46 Ultra Flat Window or Lens Package TO-56 Ultra Flat Window Package APPLICATIONS * Gigabit Ethernet (1.250Gb/s) * Fibre Channel (1.0625 Gb/s) TO-46F Ultra Flat Window Package PRODUCT DESCRIPTION The ANADIGICS AMT128503 is a 3.3V monolithically integrated Metal-Semiconductor-Metal (MSM) photodetector and transimpedance amplifier (TIA) used to convert an 850nm input optical signal into a differential output voltage, and is manufactured in ANADIGICS 6 GaAs wafer fabrication facility. The integrated MSM and TIA receiver maximizes the receiver performance by minimizing the photodetector input parasitics to the TIA and TO-46L Lens Package internally biasing the photodetector to achieve high sensitivity, bandwidth and overload performance. As an integrated product the reliability is inherently better than a discrete solution, and both the MSM-TIA integrated circuit and TO46 flat window, TO46 lens and TO56 flat window packaged receiver pass stringent reliability requirements. These products are readily designed into receivers and transceivers for Gigabit Ethernet and Fibre Channel applications. VDD 4K VOUT VOUT AGC US Patents: 5047728, 5646573 PIN Charge Pump TO-56F Ultra Flat Window Package 6.5 GHz Osc Ground Figure 1: AMT128503 Equivalent Circuit 03-01 AMT128503 Figure 2: T46F/T46L Pin Outline (Bottom View) Figure 3: T56 Pin Outline (Bottom View) Table 1: Package Pin Description PIN T46F/T46L D escription T56F D escription 1 VOUT - TIA Output Voltage (non-i nverted) Logi cal '1' wi th opti cal i nput VD D - Posi ti ve Supply Voltage 2 VD D - Posi ti ve Supply Voltage VOUT - TIA Output Voltage (i nverted) Logi cal "1" wi th opti cal i nput 3 VOUT - TIA Output Voltage (i nverted) Logi cal '0' wi th opti cal i nput Ground (case i s grounded) 4 Ground (case i s grounded) VOUT - TIA Output Voltage (non-i nverted) Logi cal "1" wi th opti cal i nput ELECTRICAL CHARACTERISTICS Table 2: Absolute Maximum Ratings V DD 6.0 V PIN + 5 dB m TS Storage Temp. - 65 C to 125 C Stresses in excess of the absolute ratings may cause permanent damage. Functional operation is not implied under these conditions. Exposure to absolute ratings for extended periods of time may adversely affect reliability. 2 Data Sheet - Rev 1 03-2001 AMT128503 Table 3: Electrical Characteristics PAR AMETER MIN Wavelength (l) D etector Acti ve Area Small Si gnal D i fferenti al Responsi vi ty (1) (@ 50 MHz) Bandwi dth(1) 770 Opti cal Overload 850 860 1000 -20 D i fferenti al Output Voltage (3), (4) TRISE & TFALL (20 - 80%) (3), (4) 1500 MHz 300 1000 kHz 40 60 W dB m - 22 dB m 700 mV 260 ps 4 (3), (5) RMS Ji tter (3), (5), (6) 15 Total Ji tter (pk-pk) (3), (5), (7) 90 Supply C urrent 10 Operati ng Voltage Range + 3.0 0 +3.3 % ps ps 55 Operati ng Ambi ent Temperature Range nm V/W 0 Opti cal Sensi ti vi ty (2) U N IT m 1000 25 (2) D uty C ycle D i storti on MAX 100 x 100 Low Frequency C utoff Output Resi stance TYP mA +3.6 V 70 C Notes: (1) Measured at 14 dBm optical input power with output connected into RL = 100W (differential) (2) Measured at 10-10 BER with a 27-1 PRBS at 1.25 GB/s (3) Input optical power = -3 dBm, RL = 100 W (differential). (4) Measured with a 625 MHz, 50% duty cycle square wave. (5) Measured with a 1.25 Gb/s, 27-1 PRBS. (6) 1s about the center eye crossing. (7) 6s about the center eye crossing. Data Sheet - Rev 1 03-2001 3 AMT128503 PERFORMANCE DATA Figure 4: Eye Diagram with an Optical Input Power of -17dBm 15mV/Div Figure 5: Eye Diagram with an Optical Input Power of -1.0dBm 200ps/Div 175mV/Div Figure 6: Supply Current vs Temperature Figure 7: Bandwidth vs. Temperature 1600 3V 3.3V 3.6V 45.0 3V 3.3V 3.6V 1500 Bandwidth (MHz) Supply Current (mA) 50.0 40.0 35.0 30.0 1400 1300 1200 1100 1000 900 25.0 0 20 40 60 80 0 100 20 Figure 8: Differential Responsivity vs Temperature 60 80 100 Figure 9: Sensitivity vs Temperature -22.00 2000 3V 3.3V 3.6V 1800 -22.50 Sensitivity (dBm) Differential Responsivity (V/W) 40 Ambient Temperature (C) Ambient Temperature (C) -23.00 1600 -23.50 1400 -24.00 1200 3V 3.3V 3.6V -24.50 1000 -25.00 0 20 40 60 80 100 0 Ambient Temperature (C) 4 200ps/Div 20 40 60 Ambient Temperature (C) Data Sheet - Rev 1 03-2001 80 100 AMT128503 MEASUREMENT METHODS Lightwave Analyzer HP 8702D DUT Test Fixture Optical Attenuator Laser Power Supply Extinction Ratio= 3dB Figure 10: Test Setup for Frequency Response BERT Pulse Pattern Generator Error Detector Hybrid Coupler Limiting Amplifier Optical Attenuator Laser 25 dB Gain DUT Test Fixture Extinction Ratio = 9dB Power Supply Figure 11: Test Setup for Sensitivity Digital Communication Analyzer HP83480A Pulse Pattern Generator Laser Optical Attenuator DUT Test Fixture Extinction Ratio = 9dB Power Supply Figure 12: Test Setup for Eye Measurements Data Sheet - Rev 1 03-2001 5 AMT128503 VDD 0.1uF DUT VOUT 0.1uF V OUT 0.1 uF Figure 13: DUT Test Fixture Schematic APPLICATION INFORMATION V DD 0.1uF 2 4K OUT 1 CF 3 OUT AGC Charge Pump 0.1uF RO 0.1uF LIMITING 6.5 GHz OSC 4 Figure 14: Application Schematic CF is an optional single pole noise filter CF = 1 2 fcR fc is the desired cutoff frequency R = 50 W RO is required with high input resistance limiting amplifiers RO = 100 W 6 Data Sheet - Rev 1 03-2001 AMT128503 VDD 0.1uF 2 4K OUT OUT 1 0.1uF 3 0.1uF VOUT VOUT AGC Charge Pump 6.5 GHz OSC 4 Figure 15: Evaluation Board Schematic Figure 16: Evaluation Board Layout Data Sheet - Rev 1 03-2001 7 AMT128503 PACKAGE OUTLINE Figure 17: T46F Package Outline Diagram 8 Data Sheet - Rev 1 03-2001 AMT128503 Figure 18: T46L Package Outline Diagram Data Sheet - Rev 1 03-2001 9 AMT128503 Figure 19: T56F Package Outline Diagram 10 Data Sheet - Rev 1 03-2001 AMT128503 NOTES Data Sheet - Rev 1 03-2001 11 AMT128503 ORDERING INFORMATION Part N umber Package Option Package D escription AMT128503T46F TO-46F Ultra Flat Wi ndow AMT128503T46L TO-46L Lens AMT128503T56F TO-56F Ultra Flat Wi ndow ANADIGICS, Inc. 141 Mount Bethel Road Warren, New Jersey 07059, U.S.A Tel: +1 (908) 668-5000 Fax: +1 (908) 668-5132 http://www.anadigics.com Mktg@anadigics.com IMPORTANT NOTICE ANADIGICS, Inc. reserves the right to make changes to its products or to discontinue any product at any time without notice. The product specifications contained in Advanced Product Information sheets and Preliminary Data Sheets are subject to change prior to a products formal introduction. Information in Data Sheets have been carefully checked and are assumed to be reliable; however, ANADIGICS assumes no responsibilities for inaccuracies. ANADIGICS strongly urges customers to verify that the information they are using is current before placing orders. WARNING ANADIGICS products are not intended for use in life support appliances, devices, or systems. Use of an ANADIGICS product in any such application without written consent is prohibited. Data Sheet- Rev. 1 03-01 12