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1.25Gb/s GaAs Laser Driver
DESCRIPTION
FMM3171VI
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) Symbol Tstg TOP VSS DIN, DIN, CIN VIP VIB Ratings -40 to +125 -40 to +85 -7.0 to 0 VSS to VDD VSS -2.0 to VSS +2.1 VSS -2.0 to VSS +2.1 Unit C C V V V V
ABSOLUTE MAXIMUM RATINGS
Parameter Storage Temperature Operating Temperature* Supply Voltage Input Voltage 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.
RECOMMENDED OPERATING CONDITIONS
Parameter Power Supply Voltage Data & Clock Input Peak Current Control Voltage Bias Current Control Voltage Output Shutdown Control Voltage Selector Control Voltage Symbol VSS VIH VIL VIP VIB VSD VSE Output enable Output disable (Shutdown) D-F/F active D-F/F inactive Test Conditions Limit Min. Typ. Max. -5.72 -5.2 -4.94 -1.0 -1.9 VSS VSS -1.9 -1.0 -0.9 -1.7 -1.7 -0.9 VDD Open -0.7 -1.6 VSS +2.1 VSS +2.1 -1.6 -0.7 -
(VDD = 0V) Unit V V V V V V V V -
Edition 1.2 June 2000
This Material Copyrighted by Its Respective Manufacturer
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FMM3171VI
Parameter Maximum Data Rate Peak Current IP Symbol Test Conditions NRZ VIP=Vss VIB=Vss VSD="Low" V =Vss+2.1V IP VIB=Vss VIP=Vss VSD="Low" VIB=Vss+2.1V VSD="High", VIP=VIB=Vss+2.1V RL=10 IP=60mA 20%-80% RL(for Mmk) Input Duty =1k/15nF 100% to GND, NRZ, 50% Mark density =50% 0% Vss=-5.2, IP=60mA, IB=30mA Min. 1.25 60 60 -
1.25Gb/s GaAs Laser Driver
Limit Typ. Max. 1 70 1 70 2 -1.0 -0.5 GND 160 2 2 4 250 250 180 V V mA Unit Gbps mA mA mA mA mA psec. psec.
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Tc=25C)
Bias Current Residual Output Current Output Rise Time Output Fall Time
IB Isd tr tf
Mark-Density Monitor Output
VMmk
Power Supply Current
Iss
FMM3171VI Block Diagram
VSE VSD VDD OUT IBOUT VDD
DataIN IB DataIN Vref SEL D-FF SD OB
ClockIN
IB
MD
VIP
VIB
VREF
Mmk Mmk
VSS
VSS
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This Material Copyrighted by Its Respective Manufacturer
1.25Gb/s GaAs Laser Driver
16 9
FMM3171VI
PIN DESCRIPTION FMM3171VI # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 FUNCTION 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)
1
8
Note: VDD is connected to the back side of the package
Test Circuit
a IB A
C2 C2 R2 a R3 b 20dB ATTN R1 Sampling Oscilloscope
a
1 2
VSS Din Din Cin SEL SD Vref VSS
IB Mon VIB IB OUT OUT Mmk Mmk VIP IP Mon
16 15 14 13 12 c 11
Pulse Pattern Generator
b 3 b 4 b
Selector Input Shutdown Input b a a R3 R2
5 6 7 8
c 10 9 IP A a C1: 0.33F C2: 0.068F C3: 15nF R1: 50 R2: 500 R3: 0~1k R4: 1k C2 C2
R3 a R2
C1
VSS
R1
C3
R4
a
b
c
3
This Material Copyrighted by Its Respective Manufacturer
FMM3171VI
y "VI" PACKAGE
5.6 0.7 0.18
1.25Gb/s GaAs Laser Driver
UNIT: mm
(0.45)
16
9
(0.25)
(0.9)
Heat Sink 2.8) (3.1) (3.6) (3.9) 5.0
(2.0)
6.4
0.1
Ground Pin
(0.4)
1
8
0.65 4.55 5.5
0.7
0.15 1.2
0.13 M
(3.2) (3.3)
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
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:
www.fcsi.fujitsu.com
* 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.
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 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 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
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.
(c) 2000 FUJITSU COMPOUND SEMICONDUCTOR, INC. Printed in U.S.A. FCSI0200M200
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This Material Copyrighted by Its Respective Manufacturer
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