AMT8504 1.25 Gb/s Integrated 850 nm MSM-TIA PRELIMINARY DATA SHEET - Rev 1 FEATURES · · · · · · · · Differential Output TIA 3.3V Operation Automatic Gain Control Integrated 850nm MSM detector & TIA 100 m m Detector Diameter TO-46 Ultra Flat Window or Lens Hermetic Package High Reliability -5 to +80°C Operating Temperature Range APPLICATIONS · Gigabit Ethernet (1.250Gb/s) · Fibre Channel (1.0625 Gb/s) TO-46L Ball Lens Package TO-46F Ultra Flat Window Package PRODUCT DESCRIPTION The ANADIGICS AMT8504 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 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 and TO46 lens packaged receiver pass stringent reliability requirements. These products are readily designed into receivers and transceivers for Gigabit Ethernet and Fibre Channel applications. V DD 2 OUT 1 3 OUT AGC US Patents: 5047728, 5646573 PIN Charge Pump 7.5 GHz Osc 4 Figure 1: Equivalent Circuit 07/01 AMT8504 Figure 2: Pin Outline (Bottom View) Table 1: Package Pin Description PIN 2 D ESC R IPTION C OMMEN T 1 VOUT - TIA Output Voltage (Non-i nverted) Logi cal '1' wi th opti cal i nput 2 VDD - Posi ti ve Supply Voltage +3.3 Volts 3 VOUT - TIA Output Voltage (Inverted) Logi cal '0' wi th opti cal i nput 4 Ground C ase i s grounded PRELIMINARY DATA SHEET - Rev 1 07-01 AMT8504 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. Table 3: Electrical Characteristics PAR AMETER MIN TYP MAX Wavelength (l ) 770 850 860 nm - 100 - µm 1000 - - V/W 900 - - MHz D etector D i ameter Small Si gnal D i fferenti al Responsi vi ty (1) (@ 50 MHz) Bandwi dth(1) U N IT Low Frequency C utoff - - 300 kHz Output Resi stance - 40 - Ohm Opti cal Overload (2) 0 - - dB m -20 - 22 - dB m - 1000 - mV Opti cal Sensi ti vi ty (2) D i fferenti al Output Voltage TRISE & TFALL (20 - 80%) (3) - 260 - ps D uty C ycle D i storti on (3) - 4 10 % Total Ji tter (pk-pk) - 80 120 ps (3) (3), (4) Supply C urrent Operati ng Voltage Range Operati ng C ase Temperature Range - - 55 mA + 3.0 +3.3 +3.6 V -5 - 80 °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 7 (3) Measured with a 2 -1 PRBS at 1.25Gb/s, an input optical power of -3dBm and RL=100 W (differential) (4) 6s about the center eye crossing. PRELIMINARY DATA SHEET - Rev 1 07-01 3 AMT8504 VDD 0.1uF DUT VOUT 0.1uF V OUT 0.1 uF Figure 3: DUT Test Fixture Schematic 4 PRELIMINARY DATA SHEET - Rev 1 07-01 AMT8504 PERFORMANCE DATA Figure 4: Eye Diagram with an Optical Input Power Figure 5: Eye Diagram with an Optical Input Power of -17dBm of 0dBm Figure 7: Bandwidth vs. Temperature 50.0 2000 45.0 1800 3.0V 40.0 35.0 30.0 3.0V 3.3V 25.0 Bandwidth (MHz) Supply Current (mA) Figure 6: Supply Current vs. Temperature 3.3V 3.6V 1600 1400 1200 3.6V 20.0 1000 0 20 40 60 80 100 0 20 Case Temperature (C) 60 80 100 Case Temperature (C) Figure 8: Differential Responsivity vs. Temperature 2000 Figure 9: Sensitivity vs. Temperature -20.00 1800 1600 1400 3.0V 1200 3.3V Sensitivity (dBm) Differential Responsivity (V/W) 40 -21.00 -22.00 -23.00 3.0V -24.00 3.3V 3.6V 3.6V 1000 -25.00 0 20 40 60 80 100 0 20 Case Temperature (C) PRELIMINARY DATA SHEET - Rev 1 07-01 40 60 80 100 Case Temperature (C) 5 AMT8504 MEASUREMENT METHODS Lightwave Analyzer HP 8702D Laser DUT Test Fixture Optical Attenuator 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 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 6 PRELIMINARY DATA SHEET - Rev 1 07-01 25 dB Gain AMT8504 APPLICATION INFORMATION V DD 0.1uF 2 OUT 1 CF OUT 3 AGC Charge Pump 0.1uF RO 0.1uF LIMITING AMPLIFIER 7.5 GHz OSC 4 Figure 13: Application Schematic CF is an optional single pole noise capacitor CF = 1 2π fcR fc is the desired cutoff frequency R = 50 W RO is required with high input resistance limiting amplifiers RO = 100 W PRELIMINARY DATA SHEET - Rev 1 07-01 7 AMT8504 VDD 0.1uF 2 OUT OUT AGC Charge Pump 7.5 GHz OSC 4 Figure 14: Evaluation Board Schematic Figure 15: Evaluation Board Layout 8 PRELIMINARY DATA SHEET - Rev 1 07-01 1 0.1uF 3 0.1uF VOUT VOUT AMT8504 PACKAGE OUTLINE Figure 16: T46F Package Outline Diagram PRELIMINARY DATA SHEET - Rev 1 07-01 9 AMT8504 Figure 17: T46L Package Outline Diagram 10 PRELIMINARY DATA SHEET - Rev 1 07-01 AMT8504 NOTES PRELIMINARY DATA SHEET - Rev 1 07-01 11 AMT8504 ORDERING INFORMATION PAR T N U MB ER PAC K AGE OPTION PAC K AGE D ESC R IPTION AMT8504T46F TO-46F Ultra Flat Wi ndow AMT8504T46L TO-46L Lens 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 [email protected] 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. PRELIMINARY DATA SHEET - Rev 1 07-01 12