AMT121302 1.25 Gb/s 1310/1550nm PIN TIA Data Sheet - Rev 1 FEATURES * * * 1.25 Gb/s Differential Output TIA 5.0V Operation Automatic Gain Control * * * * 75mm 1270-1560nm InGaAs Photodetector 1000 MHz Minimum Bandwidth -28dBm Typical Sensitivity TO-46 Ultra Flat-Window or Lens Package APPLICATIONS * * T46F TO-46 Ultra Flat Window Package Gigabit Ethernet (1.250 Gb/s) Fibre channel (1.064 Gb/s) PRODUCT DESCRIPTION The ANADIGICS AMT121302, packaged in a TO46 flat window or lens can, is a 5V integrated photodetector and transimpedance amplifier (TIA) used to convert a long wavelength (1270-1560nm) input optical signal into a differential output voltage, and is manufactured in ANADIGICS 6 GaAs wafer fabrication facility. The TIA maximizes the T46L TO-46 Lens Package receiver performance by providing a negative voltage to reverse bias the photodetector which allows the device to achieve high sensitivity and wide bandwidth. These products are readily designed into receivers and transceivers for Gigabit Ethernet and Fibre Channel applications. VDD 2 4K OUT 1 3 OUT AGC US Patents: 5047728, 5646573 PIN Charge Pump 6.5 GHz OSC 4 Figure 1: Block Diagram 03/2001 AMT121302 Figure 2: T46F/T46L Pin Outline (Bottom View) Table 1: Package PIN Description Pin D escription C omment 1 VOUT - TIA Output Voltage (non-Inverted) Logi cal '1' wi th opti cal i nput 2 VDD - Posi ti ve Supply Voltage +5 Volts 3 VOUT - TIA Output Voltage (Inverted) Logi cal '0' wi th opti cal i nput 4 Ground C ase i s grounded ELECTRICAL CHARACTERISTICS Table 2: Absolute Maximum Ratings V DD 7.0V PIN +5dBm 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 AMT121302 Table 3: Electrical Characteristics PAR AMETER MIN Wavelength ( l) 1270 D etector D i ameter Small Si gnal D i fferenti al (@ 50 MHz) Responsi vi ty (1) For T46F Package For T46L Package Bandwi dth (1) Opti cal Sensi ti vi ty (2) For T46F Package For T46L Package 1560 nm 2500 2000 3300 V/W 1000 1100 MHz 800 kHz 25 (2) U N IT m Output Offset Voltage Opti cal Overload MAX 75 Low Frequency C utoff Output Resi stance TYP 40 60 W 2.2 V -3 0 dB m -26 -25 -28 dB m 350 600 mV 160 260 ps D uty C ycle D i storti on (3), (5) 3 6 % RMS Ji tter (3), (5), (6) 15 30 ps Total Ji tter (pk-pk) (3), (5), (7) 90 150 ps Supply C urrent 35 50 mA + 5.0 + 5.5 V D i fferenti al Output Voltage (3), (4) TRISE & TFALL ( 20 - 80% ) (3), (4) Operati ng Voltage Range + 4.5 Operati ng Ambi ent Temperature Range 0 70 o C Notes: 1. Measured at -17 dBm optical input power with a SMF and output connected into RL = 100 W (differential). 2. Measured at 10 10 BER with a 27-1 PRBS, 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 AMT121302 PERFORMANCE DATA Figure 3: Frequency Response * 35 Amplitude (dB) 30 25 20 15 10 5 0 0 500 1000 1500 2000 2500 3000 3500 Frequency (MHz) * Calibrated with an optical reference receiver with a gain of 21.62 dB at 50 MHz and a responsively of 11.77462 A/W. Figure 4: Eye Diagram with an Optical Input Power of -3.0dBm 100mV/Div 200ps/Div Figure 5: Eye Diagram with an Optical Input Power of -17dBm 50mV/Div 4 200ps/Div Data Sheet - Rev 1 03/2001 AMT121302 Figure 6: Supply Current vs. Case Temperature Figure 7: Bandwidth vs. Case Temperature 1160 45 1140 40 4.5V 5.0V 5.5V 30 Bandwidth (MHz) Supply Current (mA) 1120 35 4.5V 5.0V 5.5V 1100 1080 25 1060 1040 20 0 10 20 30 40 50 60 70 80 0 90 10 20 30 40 50 60 70 80 90 Case Temperature (C) Case Temperature (C) Figure 8: Differential Responsivity vs. Temperature Figure 9: Sensitivity vs. Case Temperature 3750 -27.00 -27.20 3500 -27.60 3250 4.5V 5.0V 5.5V 3000 Sensitivity (dBm) Differential Responsivity (V/W) -27.40 -27.80 4.5V 5.0V 5.5V -28.00 -28.20 2750 -28.40 -28.60 2500 0 10 20 30 40 50 Case Temperature (C) 60 70 80 90 -28.80 0 10 20 30 40 50 60 70 80 90 Case Temperature (C) Data Sheet - Rev 1 03/2001 5 AMT121302 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 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 Data Sheet - Rev 1 03/2001 25 dB Gain AMT121302 VDD 0.1uF DUT VOUT 0.1uF V OUT 0.1 uF Figure 13: DUT Test Fixture Schematic APPLICATION INFORMATION VDD 0.1uF 2 4K OUT 1 CF OUT AGC Charge Pump 3 0.1uF RO 0.1uF LIMITING AMPLIFIER 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 Data Sheet - Rev 1 03/2001 7 AMT121302 VDD 0.1uF 2 4K OUT OUT AGC Charge Pump 6.5 GHz OSC 4 Figure 15: Evaluation Board Schematic Figure 16: Evaluation Board Layout 8 Data Sheet - Rev 1 03/2001 1 0.1uF 3 0.1uF VOUT VOUT AMT121302 PACKAGE OUTLINE TO46-1300nm DIFFERENTIAL FLAT WINDOW SEATING PLANE A l e l2 SEE NOTE 1 e1 l1 #3 e1 OD OD1 e Ob SY MB OL MILLIMETERS A MIN. 2.85 Ob 0.41 0.51 Ob2 OD 0.30 0.48 5.46 5.61 OD1 e 4.60 4.75 NOM. 2.95 #1 Ob 2 MAX. 3.00 BOTTOM VIEW 0.016 [0.41mm] MAX. 2.54 T.P. e1 1.27 T.P. h 0.36 0.46 0.53 l 12.70 13.20 13.70 l1 l2 h #4 #2 1.27 6.35 NOTES: 1. INTERNAL OPTICAL HEIGHT = 0.0650.005[1.650.1] 2. BENT LEADS SHOULD NOT EXTNED OUTSIDE DIAMETER (OD) OF CAP OR TOUCH EACH OTHER. 3. ALL DIMENSIONS ARE REFENENCE ONLY-EXCEPT A, D & h. Figure 17: T46F Package Outline Diagram Data Sheet - Rev 1 03/2001 9 AMT121302 Figure 18: T46L Package Outling Diagram 10 Data Sheet - Rev 1 03/2001 AMT121302 NOTES Data Sheet - Rev 1 03/2001 11 AMT121302 ORDERING INFORMATION Part N umber Package Option Package D escription AMT121302T46F TO-46F Ultra Flat Wi ndow Package AMT121302T46L 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 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 03-2001 12