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Fiber Optics
V23826-H18-C316/356/366/376, SM 622MBd ATM/SDH/SONET 1x9 Trx, ext.temp.R.
3
TECHNICAL DATA
The electro-optical characteristics described in the following
tables are only valid 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.
Transmitter Electro-Optical Characteristics
Notes
1. Into single mode fiber, 9 μm diameter.
2. Laser power is shut down if power supply is below V
TH
and
switched on if power supply is above V
TH
after t
RES
.
3. Transmitter meets ANSI T1E1.2, SONET OC-3 and OC-12, and
ITU-T G.957 mask patterns.
Receiver Electro-Optical Characteristics
Notes
1. Minimum average optical power at which the BER is less than
1x10
-12
or lower. Measured with a 2
23
-1 NRZ PRBS as recom-
mended by ANSI T1E1.2, SONET OC-3 and OC-12, and ITU-T G.957
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.
DC/DC, AC/DC for data
DC/DC, AC/DC, AC/AC PECL for Signal Detect
PECL compatible. Load is 50
into V
CC
–
2 V for data, 270
(3.3 V)
to V
EE
for Signal Detect. Measured under DC conditions. For
dynamic measurements a tolerance of 50 mV should be added.
V
CC
=3.3 V. T
AMB
=25
°
C.
5. Max. output current high:
–
0.4 mA (drive current)
low: +2.0 mA (sink current)
6. AC/AC for data. Load 50
to GND or 100
differential. For dynamic
measurement a tolerance of 50mV should be added.
Parameter
Ambient Temperature
Symbol
T
AMB
V
CC
–
V
EE
3.1
Min.
–
40
Typ. Max.
Units
°
C
85
Power Supply
Voltage
Supply
Current
(1)
Transmitter
3.3 V
3.3
3.5
V
3.3 V
I
CC
160
250
mA
Data Input High Voltage
DC/DC
Data Input Low Voltage
DC/DC
Data Input Differential
Voltage
AC/DC, AC/AC TTL,
AC/AC PECL
Input Data Rise/Fall
Time 10%
–
90%
Receiver
Input Center Wavelength
λ
C
V
IH
–
V
CC
–
1165
–
880
mV
V
IL
–
V
CC
–
1810
–
1475
V
DIFF
250
1600
t
R
, t
F
100
1300
ps
1270
1356
nm
Transmitter
Launched Power (Aver-
age)
(1)
Symbol Min. Typ. Max. Units
P
O
–
15
–
11
–
8
dBm
Center Wavelength
λ
C
σ
l
RIN
1274
1356 nm
Spectral Width (RMS)
Relative Intensity Noise
2.5
–
120
dB/Hz
Extinction Ratio (Dynamic)
Reset Threshold
(2)
Reset Time Out
(2)
Eye Diagram
(3)
ER
8.2
dB
3.3 V V
TH
2.7
22
V
ms
t
RES
ED
15
35
Receiver
Sensitivity
(Average Power)
(1)
Saturation
(Average Power)
Symbol
P
IN
Min.
Typ. Max.
–
30
Units
dBm
–
28
P
SAT
–
8
Signal Detect
Assert Level
(2)
P
SDA
–
28
Signal Detect
Deassert Level
(3)
P
SDD
–
38
Signal Detect Hysteresis
P
SDA
–
P
SDD
1.5
dB
Signal Detect Assert Time t
ASS
Signal Detect Deassert
Time
Output Low Voltage
(4)
Output High Voltage
(4)
100
350
μ
s
t
DAS
V
OL
-V
CC
V
OH
-V
CC
V
SDL
V
SDH
–
1950
–
1620 mV
–
1025
–
720
Signal Detect
Output Voltage
AC/AC TTL
(5)
Low
High
0.5
V
2
Data Output Differential
Voltage
(6)
Output Data Rise/Fall
Time, 20%
–
80%
Return Loss of Receiver
V
DIFF
0.5
0.8
1.23
t
R
, t
F
375
ps
A
RL
12
dB