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| Fiber Optic Transmitter MOF-T3K3 Features 1.Uni-directional data transmission using plastic fiber 2.Signal transmission speed :MAX. 8 Mbps (NRZ signal) 3.Operating voltage :4.75 to 5.25 V 4.TTL and high speed C-MOS LOGIC IC compatible Outline Dimensions Recommended drilling as viewd from the soldering face NOTES: Tolerance is 0.3mm unless otherwise noted. Absolute Maximum Ratings @ TA=25oC Parameter Supply voltage Input voltage Operating temperature Storage temperature Soldering temperature *1 For 5s (2 times or less) Symbol Vcc Vin Topr Tstg *1 Rating -0.5 to + 7.0 -0.5 to Vcc +0.5 -20 to +70 -40 to +70 260 Unit V V Tsol C C o C o o REV : A2 Unity Opto Technology Co., Ltd. 09/11/2001 1/4 Fiber Optic Transmitter MOF-T3K3 Recommended Operating Conditions Parameter Operating supply voltage Operating transfer rate Symbol Vcc T MIN. 4.75 --- TYP. 5.0 --- MAX. 5.25 8 Unit V Mbps Electro-Optical Characteristics Parameter Peak emission wavelength Optical power output coupling with fiber Dissipation current High level input voltage Low level input voltage Low /High delay time High /Low delay time Pulse width distortion Symbol p Pc Icc ViH ViL tpLH tpHL tw Conditions Refer to Fig. 1 Refer to Fig. 2 Refer to Fig. 2 Refer to Fig. 2 Refer to Fig. 3 Refer to Fig. 3 Refer to Fig. 3 MIN. 630 -21 --2.1 -------25 TYP. 660 -18 8 ----120 120 --- MAX. 690 -15 13 Vcc 0.8 ----+25 Unit nm dBm mA V V ns ns ns REV : A2 Unity Opto Technology Co., Ltd. 09/11/2001 2/4 Fiber Optic Transmitter MOF-T3K3 Fig. 1 Measuring Method of Optical Output Coupling with Fiber Standard optical fiber cable MOF-T3K3 Unit to be measured Vin VCC Optical power meter GND The optical power meter must be calibrated to have the wavelength sensitivity of 660 nm. ( 0dBm=1mW ) D VCC Notes (1)Vcc=5.0V (State of operating) (2)To bundle up the standard fiber optic cable, make it into a loop with the diameter D=10cm or more. Fig. 2 Measuring Method of Intput Voltage and Supply Current Standard optical fiber cable MOF-T3K3 Unit to be measured Vin VCC GND Vin Icc The optical power meter must be calibrated to have the wavelength sensitivity of 660 nm. ( 0dBm=1mW ) VCC Input conditions and judgement method Conditions Vin=2.1V or more Vin=0.8V or less Note: Vcc=5.0V (State of operating) Judgement method -21dBm<=Pc<=-15dBm, Icc=13mA or less Pc<=-36dBm, Icc=13mA or less REV : A2 Unity Opto Technology Co., Ltd. 09/11/2001 3/4 Fiber Optic Transmitter MOF-T3K3 Fig.3 Measuring Method of Pulse Response Standard optical fiber cable MOF-T3K3 Unit to be measured VCC Vin GND Standard receiver Output signal Oscilloscope VCC CH1 CH2 Input Input signal 1 1 0 0 50% 4 Mbps biphase PRBS signal Standard receiver output t PLH t PHL 50% Test item Test item Low /High pulse delay time High /Low pulse delay time Pulse width distortion (2 ) Vcc=5.0 (State of operating) (3) The probe for the oscilloscope must be more than 1M and less than 10pF. Symbol Test condition t PLH Refer to the above prescriptions t PHL Refer to the above prescriptions tw tw=t PHL- t PLH Notes (1) The waveform write time shall be 4 seconds. But do not allow the waveform to be distorted by increasing the brightness too much. REV : A2 Unity Opto Technology Co., Ltd. 09/11/2001 4/4 |
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