1.25Gb/s GaAs Laser Driver FMM3171VI DESCRIPTION VI The FMM3171VI is a laser driver IC for up to 1.2Gb/s optical transmission systems. The GaAs MES-FET IC process allows for high speed operation with low power consumption. There are two data inputs options; a complementary input or a single-ended input using a selectable D-F/F. The output duty ratio can be set by adjusting the input reference voltage (Vref). The differential mark-density monitor (Mmk) output proportional to the peak current output signal. The peak current and bias current output is disabled by the shutdown terminal, which is ECL compatible. Logic “high” causes the output to be disabled. The High speed turn-on and turn-off is accomplished by a very low compute time constant. The amount of peak current and bias current are monitored by the current flow at lp and lb terminal which must be connected to VSS. This FMM3171VI is an excellent choice use as a laser driver for OC-3/OC-12/OC-24 and STM1/STM4 transmitters. FEATURES • • • • • • ECL Compatible Data Input Built in D-F/F (Optional) Complementary Data Input (Optional) Modulation Current: 0 to 70mA Bias Current: 0 to 70mA Output Shutdown Function • • • • • • Modulation Current and Bias Current Monitor Duty Ratio Monitor Duty Ratio Control Single Power Supply: -5.2V Separated Peak Current and Bias Current Outputs Small Package: SSOP-16 (VDD = 0V) ABSOLUTE MAXIMUM RATINGS Parameter Symbol Ratings Unit Storage Temperature Tstg -40 to +125 °C Operating Temperature* Supply Voltage Input Voltage TOP VSS DIN, DIN, CIN -40 to +85 -7.0 to 0 VSS to VDD °C V V VIP VIB VSS -2.0 to VSS +2.1 VSS -2.0 to VSS +2.1 V V Peak Current Control Voltage Bias Current Control Voltage (*) Lower limit temperature corresponds to the ambient temperature and higher limit temperature corresponds to the case (the bottom of the case) temperature. (VDD = 0V) RECOMMENDED OPERATING CONDITIONS Parameter Power Supply Voltage Symbol Test Conditions VSS VIH Limit Min. Typ. Max. -5.72 -5.2 -4.94 Unit V V -1.0 -0.9 -0.7 VIL -1.9 -1.7 V Peak Current Control Voltage VIP VSS - Bias Current Control Voltage VIB VSS - Output Shutdown Control Voltage VSD Output enable -1.9 -1.7 -1.6 VSS +2.1 VSS +2.1 -1.6 Output disable (Shutdown) -1.0 -0.9 -0.7 D-F/F active D-F/F inactive - VDD Open - V V - Data & Clock Input Selector Control Voltage Edition 1.2 June 2000 This Material Copyrighted by Its Respective Manufacturer VSE 1 V V V 1.25Gb/s GaAs Laser Driver FMM3171VI ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Tc=25°C) Parameter Symbol Test Conditions Maximum Data Rate Peak Current IP Bias Current IB Residual Output Current Isd Output Rise Time tr Output Fall Time tf Mark-Density Monitor Output Power Supply Current VMmk Iss Min. Limit Typ. Max. Unit NRZ 1.25 - - Gbps VIP=Vss VIB=Vss VSD="Low" V =Vss+2.1V IP - 1 2 mA 60 70 - mA - 1 2 mA 60 70 - mA - 2 4 mA - - 250 psec. - - 250 psec. - - - - -1.0 - V - -0.5 - V - GND - - - 160 180 mA VIB=Vss VIP=Vss VSD="Low" VIB=Vss+2.1V VSD="High", VIP=VIB=Vss+2.1V RL=10Ω IP=60mA 20%-80% RL(for Mmk) Input Duty =1kΩ/15nF 100% to GND, NRZ, 50% Mark density =50% 0% Vss=-5.2, IP=60mA, IB=30mA FMM3171VI Block Diagram VSE VSD VDD OUT IBOUT VDD DataIN IB DataIN SEL Vref ClockIN SD OB D-FF IB VIP MD VREF 2 This Material Copyrighted by Its Respective Manufacturer Mmk Mmk VSS VIB VSS 1.25Gb/s GaAs Laser Driver FMM3171VI 16 PIN DESCRIPTION FMM3171VI 9 1 8 # FUNCTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 VSS DATA INPUT DATA INPUT CLOCK INPUT SELECTOR (VSE) SHUT DOWN (VSD) VREF(Duty Control) VSS IP MON (VSS) VIP Mmk(Duty Monitor) Mmk(Duty Monitor) OUT IBOUT VIB IB MON (VSS) Note: VDD is connected to the back side of the package Test Circuit a IB A a 1 VSS 2 Din IB Mon 16 VIB 15 C2 C2 a b Pulse Pattern Generator 3 Din IB OUT R2 R3 b 14 b 20dB 4 Cin OUT 13 Selector Input 5 SEL Mmk 12 Shutdown Input 6 SD Mmk 11 7 Vref VIP 10 b Sampling Oscilloscope ATTN R1 c b c R3 R2 a a 8 VSS C2 9 IP Mon IP A C2 a C1 R1 VSS a C3 R4 b c 3 This Material Copyrighted by Its Respective Manufacturer C1: 0.33µF C2: 0.068µF C3: 15nF R1: 50Ω R2: 500Ω R3: 0~1kΩ R4: 1kΩ R3 a R2 1.25Gb/s GaAs Laser Driver FMM3171VI y “VI” PACKAGE UNIT: mm 5.6 9 (0.25) 16 (3.9) (3.6) 2.8) ( 5.0 6.4 0.1 (3.1) Heat Sink (2.0) (0.9) (0.45) 0.7 0.18 Ground Pin 1 8 0.65 4.55 0.15 0.7 (0.4) (3.2) (3.3) 1.2 5.5 0.13 M Unit: mm For further information please contact: FUJITSU COMPOUND SEMICONDUCTOR, INC. Americas & R.O.W. 2355 Zanker Rd. San Jose, CA 95131-1138, U.S.A. Phone: (408) 232-9500 FAX: (408) 428-9111 www.fcsi.fujitsu.com FME, QDD Fujitsu Microelectronics Europe GmbH Quantum Devices Division Network House Norreys Drive Maidenhead, Berkshire SL6 4FJ United Kingdom TEL: +44 (0) 1628 504800 FAX: +44 (0) 1628 504888 FUJITSU QUANTUM DEVICES SINGAPORE PTE LTD. Hong Kong Branch Rm. 1101, Ocean Centre, 5 Canton Rd. Tsim Sha Tsui, Kowloon, Hong Kong TEL: +852-23770226 FAX: +852-23763269 CAUTION Fujitsu Compound Semiconductor Products contain gallium arsenide (GaAs) which can be hazardous to the human body and the environment. For safety, observe the following procedures: • Do not put this product into the mouth. • Do not alter the form of this product into a gas, powder, or liquid through burning, crushing, or chemical processing as these by-products are dangerous to the human body if inhaled, ingested, or swallowed. • Observe government laws and company regulations when discarding this product. This product must be discarded in accordance with methods specified by applicable hazardous waste procedures. FUJITSU QUANTUM DEVICES LIMITED Global Business Division Global Sales Support Department Shinjuku Daiichiseimei Building, 2-7-1 Nishishinjuku, Shinjuku-ku, Tokyo, 163-0721, Japan TEL: +81-3-5322-3356 FAX: +81-3-5322-3398 Fujitsu Limited reserves the right to change products and specifications without notice. The information does not convey any license under rights of Fujitsu Limited or others. © 2000 FUJITSU COMPOUND SEMICONDUCTOR, INC. Printed in U.S.A. FCSI0200M200 4 This Material Copyrighted by Its Respective Manufacturer