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Fiber Optics
V23806-A34-C2, Single Mode FDDI 1x9 Transceiver
3
TECHNICAL DATA
The electro-optical characteristics described in the following
tables are valid only for use under the recommended operating
conditions.
Recommended Operating Conditions
Note
1. For V
CC
–
V
EE
(min., max.). 50% duty cycle. The supply current does
not include the load drive current of the receiver output. Add max.
45 mA for the three outputs. Load is 50
to V
CC
–
2 V.
Transmitter Electro-Optical Characteristics
Notes
1. Measured at the end of 5 meters of single mode fiber. The FDDI
Halt Line state (12.5 MHz square wave) is used. Specified values are
valid for EOL and over the whole temperature range.
2. The weighted average wavelength of the optical spectrum output.
3. FOTP-127 is used to measure central wavelength and RMS
spectral width.
4. The weighted root mean square (RMS) width of the optical
output spectrum.
5. To 90% (90% to 10%) levels. Measured using the Halt Line state
(12.5 MHz square wave).
6. Measurement done using the Idle Line state (62.5 MHz square
wave).
7 Test method as in PMD Appendix A. All jitter values are peak-to-peak.
8. Measurement done using the Worst Case test pattern described in
the PMD Appendix A.5.
9. Measurement done using the Idle Line state (62.5 MHz square
wave). BER=2.5
–
10
.
Receiver Electro-Optical Characteristics
Notes
1. Minimum average power at which the BER is less than 2.5
–
10
or lower. Measured with the ANSI Worst Case pattern from
Appendix 5 of the PMD.
2. An increase in optical power of data signal above the specified level
will cause the SIGNAL DETECT to switch from a Low state to a High
state.
3. A decrease in optical power of data signal below the specified level
will cause the SIGNAL DETECT to switch from a High state to a Low
state.
4. 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. V
CC
=5 V.
5. PECL compatible. A high level on this output shows that optical data
is applied to the optical input.
6. Measurement done using the Idle Line state (62.5 MHz
square wave).
7 Test method as in PMD Appendix A. All jitter values are peak-
to-peak.
8. Measurement done using the Worst Case test pattern described in
the PMD Appendix A.5.
9. Measurement done using the Idle Line state (62.5 MHz square
wave). BER=2.5
–
10
.
Parameter
Ambient Temperature
Symbol
T
AMB
V
CC
–
V
EE
I
CC
Min.
0
Typ.
Max.
70
Units
°
C
Power Supply Voltage
Supply Current
(1)
Transmitter
4.75
5.0
5.25
V
150
250
mA
Data Input High Voltage V
IH
–
V
CC
Data Input Low Voltage V
IL
–
V
CC
Input Data Rise/Fall
Time, 10%
–
90%
Receiver
–
1165
–
880
mV
–
1810
0.4
–
1475
1.3
t
R
, t
F
ns
Output Current
I
O
λ
C
25
mA
Input Center
Wavelength
1260
1360
nm
Transmitter
Output Power (Average)
(1)
Center Wavelength
(2, 3)
Spectral Width (RMS)
(3, 4)
Output Rise Time
(5)
Output Fall Time
(5)
Extinction Ratio (Dynamic)
Symbol
Min. Typ. Max. Units
P
O
l
C
σ
l
t
R
t
F
ER
–
20
–
16
–
14
dBm
1270
1340
15
nm
0.6
3.5
ns
10
dB
Overshoot
Duty Cycle Distortion
(6, 7)
Data Dependent J itter
(7 8)
Random J itter
(7 9)
OS
25
%
DCD
DDJ
1.0
0.6
ns
RJ
0.69
Receiver
Sensitivity
(Average Power)
(1)
Saturation
(Average Power)
(1)
Symbol
P
IN
Min.
Typ.
–
33
Max.
–
31
Units
dBm
P
SAT
–
14
Signal Detect
Assert Level
(2)
P
SDA
–
31
Signal Detect
Deassert Level
(3)
P
SDD
–
40.5
–
32.5
Signal Detect
Hysteresis
P
SDA
–
P
SDD
t
ASS
1
dB
Signal Detect
Assert Time
Signal Detect
Deassert Time
Output Low Voltage
(4)
V
OL
–
V
CC
Output High Voltage
(4)
V
OH
–
V
CC
Output Data Rise/Fall
Time, 10%
–
90%
100
μ
s
t
DAS
350
–
1950
–
1630
mV
–
1025
–
735
t
R
, t
F
1.3
ns
Output SD
Rise/Fall Time
(5)
Duty Cycle
Distortion
(6, 7)
Data Dependent
J itter
(7 8)
Random J itter
(7 9)
40
DCD
0.4
DDJ
1.0
RJ
2.1