Fiber Optic Receiver
MOF-R3C5
Fig. 2 Measuring Method of Output Voltage and Pulse Response
Fiber optic cable
Standard transmitter
MOF-T3C5
MOF-R3C5
VCC
VOUT
GND
VCC
Vin
GND
5V
VCC
Input
Oscilloscope
CH1
12.5 Mbps NRZ, Duty 50%
CH2
Test item
Test item
Symbol
t PLH
t PHL
tr
50%
Standard transmitter
Input signal
(CH1)
Low to High pulse delay time
High to Low pulse delay time
Rise time
tf
tr
Fall time
tf
VOH
Pulse width distortion
Dtw = t PHL - t PLH
Dtw
VOH
VOL
90%
50%
10%
High level output voltage
Low level output voltage
Output signal
(CH2)
VOL
tPHL
tPLH
REV: A1
Unity Opto Technology Co., Ltd.
01/07/2002
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