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| AMT8304 2.125 Gb/s Integrated 850nm MSM-TIA PRELIMINARY DATA SHEET - Rev 1.1 FEATURES * * * * * * Differential Output TIA 3.3V Operation Automatic Gain Control Integrated 850nm MSM Detector & TIA TO-46 Ultra Flat-Window or Lens Hermetic Package High Reliability APPLICATIONS * 2x Fibre Channel (2.125 Gb/s) T46F TO-46 Ultra Flat Window Package T46L TO-46 Lens Package T4TL TO-46 Lens Package with Tabbed Header PRODUCT DESCRIPTION The ANADIGICS AMT8304 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 VDD 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 TO-46 flat window and TO-46 lens packaged receiver pass stringent reliability requirements. These products are readily designed into receivers and transceivers for 2x Fibre Channel applications. 2 OUT 1 3 OUT AGC US Patents: 5047728, 5646573 PIN Charge Pump 4.5 GHz Osc 4 Figure 1: Equivalent Circuit 11/2002 AMT8304 Figure 2: T46F/T46L/T4TL Pin Outline (Bottom View) Table 1: Package PIN Description PIN 1 DESCRIPTION COMMENT VOUT - TIA Output Voltage Logical '1' with optical (non-Inverted) input VDD - Positive Supply Voltage +3.3 Volts 2 3 4 VOUT - TIA Output Voltage Logical '0' with optical (Inverted) input Ground Case is grounded ELECTRICAL CHARACTERISTICS Table 2: Absolute Maximum Ratings VDD PIN TS 6.0V +5dBm 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 PRELIMINARY DATA SHEET - Rev 1.1 11/2002 AMT8304 Table 3: Electrical Characteristics PARAMETER Wavelength () Detector Diameter Small Signal Differential Responsivity (1) (@ 50 MHz) Bandwidth (1) Low Frequency Cutoff Output Resistance Optical Overload (2) Optical Sensitivity (2) Differential Output Voltage (3) TRISE and TFALL (20-80%) Duty Cycle Distortion (3) Total Jitter (3),(4) (3) MIN 770 1000 1400 0 -19 +3.0 0 TYP 850 100 1900 40 750 140 5 50 35 +3.3 - MAX 860 300 55 +3.6 80 UNIT nm m V/W MHz KHz dBm dBm mV ps % ps mA Volts C Supply Current Operating Voltage Range Operating Case Temperature Range Notes: (1) Measured at -14 dBm optical input power with output connected into RL = 100 (differential) (2) Measured at 10-10 BER with a 27-1 PRBS at 2.125 Gb/s (3) Measured with a 27-1 PRBS at 2.125 Gb/s, an input optical power of -3dBm and RL = 100 (differential) (4) 6 about the center eye crossing PRELIMINARY DATA SHEET - Rev 1.1 11/2002 3 AMT8304 PERFORMANCE DATA Figure 3: Eye Diagram with an Optical Input Power of -19dBm (with a 4GHz LPF) 10mV/Div 100ps/Div Figure 4: Eye Diagram with an Optical Input Power of -9.0dBm 50mV/Div. 100ps/Div Figure 5: Eye Diagram with an Optical Input Power of 0dBm 150mV/Div. 100ps/Div 4 PRELIMINARY DATA SHEET - Rev 1.1 11/2002 AMT8304 Figure 6: Supply Current vs. Temperature 50.0 2400 2200 45.0 2000 40.0 Figure 7: Bandwidth vs. Temperature Supply Current (mA) Bandwidth (MHz) 1800 1600 1400 35.0 30.0 3V 3.3V 3.6V 25.0 0 20 40 60 80 100 1200 1000 0 20 40 60 80 3V 3.3V 3.6V 100 Case Temperature (C) Case Temperature (C) Figure 8: Differential Responsivity vs. Temperature 1500 -18.0 -18.5 Figure 9: Sensitivity vs. Temperature Differential Responsivity (V/W) 1400 -19.0 1300 Sensitivity (dBm) 3V 3.3V 3.6V 0 20 40 60 80 100 -19.5 -20.0 -20.5 -21.0 1200 1100 1000 -21.5 -22.0 0 20 40 60 80 3V 3.3V 3.6V 100 900 Case Temperature (C) Case Temperature (C) PRELIMINARY DATA SHEET - Rev 1.1 11/2002 5 AMT8304 MEASUREMENT METHODS Lightwave Analyzer HP 8702D Laser Optical Attenuator DUT Test Fixture Extinction Ratio= 3dB Power Supply Figure 11: Test Setup for Frequency Response BERT Pulse Pattern Generator Error Detector Hybrid Coupler Limiting Amplifier 25 dB Gain Laser Optical Attenuator DUT Test Fixture Extinction Ratio = 9dB Power Supply Figure 12: Test Setup for Sensitivity Pulse Pattern Generator Digital Communication Analyzer HP83480A Laser Optical Attenuator DUT Test Fixture Extinction Ratio = 9dB Power Supply Figure 13: Test Setup for Eye Measurements 6 PRELIMINARY DATA SHEET - Rev 1.1 11/2002 AMT8304 VDD 0.1uF VOUT 0.1uF DUT 0.1 uF VOUT Figure 13: DUT Test Fixture Schematic APPLICATION INFORMATION V DD 0.1uF 2 OUT 1 0.1uF CF 3 OUT R0 0.1uF LIMITING AMPLIFIER AGC Charge Pump 7.5 GHz OSC 4 Figure 14: Application Schematic CF is an optional single pole noise filter 1 C = 2fcR F fc is the desired cutoff frequency R = 50 RO is required with high input resistance limiting amplifiers RO = 100 PRELIMINARY DATA SHEET - Rev 1.1 11/2002 7 AMT8304 PACKAGE OUTLINE Figure 15: T46F Package Outline Diagram 8 PRELIMINARY DATA SHEET - Rev 1.1 11/2002 AMT8304 Figure 16: T46L Package Outline Diagram PRELIMINARY DATA SHEET - Rev 1.1 11/2002 9 AMT8304 Figure 17: T4TL Package Outline Diagram 10 PRELIMINARY DATA SHEET - Rev 1.1 11/2002 AMT8304 NOTES PRELIMINARY DATA SHEET - Rev 1.1 11/2002 11 AMT8304 ORDERING INFORMATION PACKAGE OPTION TO-46F TO-46L TO-46L ORDER NUMBER AMT8304T46F AMT8304T46L AMT8304T4TL PACKAGE DESRIPTION Ultra Flat Window Package Lens Package Lens Package with Tabbed Header ANADIGICS, Inc. 141 Mount Bethel Road Warren, New Jersey 07059, U.S.A. Tel: +1 (908) 668-5000 Fax: +1 (908) 668-5132 URL: http://www.anadigics.com E-mail: 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 product's 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. 12 PRELIMINARY DATA SHEET - Rev 1.1 11/2002 |
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