AMT8312 2.5 Gb/s 850 nm PIN-TIA PRELIMINARY DATA SHEET - Rev 1.0 FEATURES • • • • • • • • 2.5 Gb/s Differential Output TIA 3.3 V Operation 1800 MHz Bandwidth -23 dBm Typical Sensitivity 0 dBm Optical Overload Photocurrent Monitor 100 µm 850 nm PIN Photodetector TO-46 5 Pin Lens Package APPLICATIONS • • • • SONET OC-48/SDH STM-16 (2.488 Gb/s) 2 x Fibre Channel (2.125 Gb/s) 2.5 Gb/s Infiniband Fibre Channel/Gigabit Ethernet (1.0625/1.25 Gb/s) T46L TO-46 5 pin Ball Lens Package PRODUCT DESCRIPTION The ANADIGICS AMT8312, packaged in a 5 pin TO-46 lens can, is a 3.3 V integrated photodetector and transimpedance amplifier (TIA) used to convert a short wavelength (850 nm) input optical signal into a differential output voltage. The AMT8312 has a bandwidth of 1.8 GHz, a dynamic range of over 23 dB and a photocurrent monitor with an output that is proportional to the average input optical power. These devices are readily designed into receivers, transceivers and transponders for SONET, Fibre Channel and Infiniband applications. VCC 2 RF 1 PIN 4 DC Compensation IMON Offset Control 3 5 Figure 1: Functional Block Diagram 09/2003 VOUTN VOUTP AMT8312 5 Figure 2 : T46L Pin Outline (Bottom View) Table 1: TO-46 Package Pin Description PIN NAME DESCRIPTION 1 VOUTN Inverted Output Voltage. Logical '0' with an optical input. Needs to be AC coupled to the load. 2 VC C Positive Supply Voltage: 3.0 to 3.6 V 3 IMON Mirrored average photodiode current. The IMON pin is open drain and should be connected through a 2.0 k Ω resistor to 3.3 V. 4 VOUTP Non-Inverted Output Voltage: Logical '1' with an optical input. Needs to be AC coupled to the load. 5 Ground Ground: Case is grounded. ELECTRICAL CHARACTERISTICS Table 2: Absolute Maximum Ratings PARAMETER Supply Voltage Optical Input Power Storage Temperature MIN MAX UNIT -0.5 6.0 V - +4 dB m - 40 + 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 1.0 09/2003 AMT8312 Table 3: Electrical Specifications PARAMETER MIN TYP MAX UNIT 850 - nm - 100 - µm S mall S i gnal D i fferenti al Responsi vi ty (@ 100 MHz) (1) 10000 14500 - V/W Bandwidth (1) 1500 1800 - MHz Low Frequency Cutoff - 30 - kHz Output Resistance - 50 - Ω Optical Overload (2) 0 - dB m Optical Sensitivity (2) -21 -23 - dB m Maximum Differential Output Voltage - 550 700 mV TRISE and TFALL (20-80%) (3) - 140 - ps Duty Cycle Distortion (4) - 5 - % Wavelength (λ) Detector Diameter Total Jitter (4), (5) 60 Supply Current ps - 40 60 mA Operating Voltage Range +3.0 +3.3 +3.6 Volts Operating Case Temperature -30 - +105 °C Notes: (1) Measured at -20 dBm optical input power with output connected into RL = 100Ω (differential) (2) Measured at 10-10 BER with a 223-1 PRBS at 2.5 Gb/s (3) Measured with a 223-1 PRBS at 2.5 Gb/s, an input optical power of –20 dBm and RL = 100Ω (differential) (4) Measured with a 223-1 PRBS at 2.5 Gb/s, an input optical power of –3 dBm and RL = 100Ω (differential) (5) 6 σ about the center eye crossing. PRELIMINARY DATA SHEET - Rev 1.0 09/2003 3 AMT8312 PERFORMANCE DATA 100 ps/Div. 50 mV/Div. Figure 3: Eye Diagram with an Optical Input Power of –20 dBm 100 ps/Div. 90 mV/Div. Figure 4: Eye Diagram with an Optical Input Power of –15 dBm 100 ps/Div. 90 mV/Div. Figure 5: Eye Diagram with an Optical Input Power of –10 dBm 4 PRELIMINARY DATA SHEET - Rev 1.0 09/2003 AMT8312 100 ps/Div. 90 mV/Div. Figure 6: Eye Diagram with an Optical Input Power of –5 dBm Differential Output Voltage (mVpp) 600.0 500.0 400.0 300.0 200.0 100.0 0.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Input Power (mWpp) Figure 7: Differential Output Voltage vs. Input Power PRELIMINARY DATA SHEET - Rev 1.0 09/2003 5 AMT8312 Figure 8: T46L Package Outline Diagram 6 PRELIMINARY DATA SHEET - Rev 1.0 09/2003 AMT8312 NOTES PRELIMINARY DATA SHEET - Rev 1.0 09/2003 7 AMT8312 ORDERING INFORMATION ORDER NUMBER PACKAGE OPTION PACKAGE DESRIPTION AMT8312T46L TO-46L Lens Package 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: [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 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. 8 PRELIMINARY DATA SHEET - Rev 1.0 09/2003