GP1F351T Datasheet, PDF (5/7 Pages) Sharp Electrionic Components – Optical Mini-Jack for Digital Audio Equipment

GP1F351T/GP1F351R
Test item
Test time
Low→High pulse delay time
High→Low pulse delay time
Pulse width distortion
Low→High Jitter
High→Low Jitter
Symbol
t PLH
t PHL
∆ tw
∆ tjr
∆ tjf
Test condition
-
-
∆ tw= t PHL- t PLH
Set the trigger on the rise of input signal
to measure the jitter of the rise of output
Set the trigger on the fall of input signal
to measure the jitter of the fall of output
Note) ( 1) The waveform write time shall be 4 seconds. But do not allow the waveform to be distorted by incresing
the brightness too much.
( 2) V_CC = 5.0 ±0.05V ( State of operating)
( 3) The probe for the oscilloscope must be more than 1MΩ and less than 10pF.
Fig. 4 Supply Current
Supply voltage
Optical output
coupling fiber
Standard transmitter input signal
Input conditions
VCC = 5.0 ± 0.05V
PC = -14.5dBm
6Mbps NRZ, Duty 50% or 3Mbps
biphase mark PRBS signal
Measuring method
Measured on an
ammeter
( DC average
amperage )
Standard
transmitter
Vin Vcc GND
Input
5V
fiber optic cable
GP1F351R
Unit to be measured
Vcc
GND Vout
Vcc
A
Ammeter
Fig. 5 Measuring Method of Output Voltage and Pulse Response
Standard
transmitter
Vin Vcc
GND
5V
Input
6Mbp/s NRZ, duty 50%
fiber optic cable
GP1F351R
Unit to be measured
Vcc GND Vout
Vcc Rso
CH1
CH2
Rsi
Tektronix 7834
or 7934 type
Oscilloscope