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Fiber Optics
V23809-C8
–
C10, MM 1300 nm LED Fast Ethernet/FDDI/ATM Transceiver
3
Transmitter Electro-Optical Characteristics
Notes
1. Measured at the end of 5 meters of 62.5/125/0.275 graded index
fiber using calibrated power meter and a precision test ferrule.
Cladding modes are removed. Values valid for EOL and worst-case
temperature.
2. The input data pattern is a 12.5 MHz square wave pattern.
3. Center wavelength is defined as the midpoint between the two
50% levels of the optical spectrum of the LED.
4. Spectral width (full width, half max) is defined as the difference
between 50% levels of the optical spectrum of the LED.
5. 10% to 90% levels. Measured using the 12.5 MHz square wave
pattern with an optoelectronic measurement system (detector
and oscilloscope) having 3 dB bandwidth ranging from less than
0.1 MHz to more than 750 MHz.
6. Extinction Ratio is defined as PL/PH x 100%. Measurement system
as in Note 5.
7 Optical Power Low is the output power level when a steady state
low data pattern (FDDI Quiet Line state) is used to drive the trans-
mitter. Value valid <1 ms after input low.
8. Test method as for FDDI-PMD. J itter values are peak-to-peak.
9. Duty Cycle Distortion is defined as 0.5 [(width of wider state) minus
(width of narrower state)]. It is measured with stream of Idle
Symbols (62.5 MHz square wave).
10.Measured with the same pattern as for FDDI-PMD.
11. Measured with the Halt Line state (12.5 MHz square wave).
Receiver Electro-Optical Characteristics
Notes
1. Pattern: Manchester coding / NRZI (no scrambling)
2. For a bit error rate (BER) of less than 1x10
E
–
12
over a receiver eye
opening of least 1.5 ns. Measured with a 2
23
–
1 PRBS at 155 MBd.
3. For a BER of less than 1x10E-12. Measured in the center of the eye
opening with a 2
23
-1 PRBS at 155 MBd.
4. Measured at an average optical power level of
–
20 dBm with a 62.5
MHz square wave.
5. All jitter values are peak-to-peak. RX output jitter requirements are
not considered in the ATM standard draft. In general the same
requirements as for FDDI are met.
6. Measured at an average optical power level of
–
20 dBm.
7 Measured at
–
33 dBm average power.
8. An increase in optical power through the specified level will
cause the SIGNAL detect output to switch from a Low state to
a High state.
9. A decrease in optical power through the specified level will
cause the SIGNAL detect output to switch from a High state to
a Low state.
10. PECL compatible. Load is 50
into V
CC
–
2 V. Measured under DC
conditions. For dynamic measurements a tolerance of 50 mV should
be added for V
CC
=5 V.
Transmitter
Data Rate
Symbol
DR
Min.
Typ.
Max.
170
Units
MBaud
Launched Power
(Average) into 62.5
μ
m
Fiber for
–
C8
–
C10
(1, 2)
P
O
–
20
–
16
–
14
dBm
Launched Power
(Average) into 62.5
μ
m
Fiber for
–
C8
–
C11
(1, 2)
Center Wavelength
(2, 3)
–
22
–
17
λ
C
D
l
1270
1360
nm
Spectral Width
(FWHM)
(2, 4)
170
Output Rise/Fall Time,
10%
–
90%
(2, 5)
Temperature
Coefficient of Optical
Output Power
t
R
, t
F
0.6
2.5
ns
TCp
0.03
dB/
°
C
Extinction Ratio
(Dynamic)
(2, 6)
Optical Power Low
(7)
ER
10
%
P
TD
OS
–
45
dBm
Overshoot
10
%
Duty Cycle
Distortion
(8, 9)
t
DCD
0.6
ns
Data Dependent
J itter
(8, 10)
Random J itter
(8, 11)
t
DDJ
0.3
t
RJ
0.6
Receiver
Data Rate
Symbol
DR
Min.
5
(1)
Typ.
Max.
170
Units
MBaud
Sensitivity
Average Power)
(2)
P
IN
–
33
–
31
dBm
Sensitivity (Average
Power) Center
(3)
–
35.5
Saturation (Average
Power)
(3)
P
SAT
–
14
–
11
Duty Cycle
Distortion
(4, 5)
Deterministic
J itter
(5, 6)
Random J itter
(5, 7)
t
DCD
1
ns
t
DJ
1
t
RJ
P
SDA
Signal Detect
Assert Level
(8)
–
42.5
–
30
dBm
Signal Detect
Deassert Level
(9)
P
SDD
–
45
–
31.5
Signal Detect
Hysteresis
P
SDA
–
P
SDD
V
OL
–
V
CC
1.0
dB
Output Low
Voltage
(10)
Output High
Voltage
(10)
Output Data
Rise/Fall Time,
20%
–
80%
Output SD
Rise/Fall Time,
20%
–
80%
–
1810
–
1620
mV
V
OH
–
V
CC
–
1025
–
880
t
R
, t
F
1.3
ns
40