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1243CBDC View Datasheet(PDF) -

Part Name
Description
Manufacturer
1243CBDC
 
1243CBDC Datasheet PDF : 0 Pages
1241/1243/1245-Type Uncooled Laser Transmitter
Data Sheet
September 1999
Characteristics (continued)
Table 3. Optical Characteristics
Parameter
Average Power Output Options1
Extinction Ratio2
Optical Rise and Fall Times3:
OC-3/STM-1
OC-12/STM4
1062.5 Mbits/s
Center Wavelength
RMS Spectral Width4
Side-mode Suppression Ratio5
Symbol
PO
rE
tR, tF
tR, tF
tR, tF
λ
∆λ
SMSR
Min
Typ
Max
See Ordering Information.
10
1.0
0.5
0.37
See Ordering Information.
4
30
Unit
dBm
dB
ns
ns
ns
nm
nm
dB
1. Output power definitions and measurement per ITU-T Recommendation G.957 and G.958.
2. Ratio of logic 1 to logic 0 power levels.
3. Between 10% and 90% (50% duty cycle).
4. Root-mean-square spectral width accounts for modes up to and including those 20 dB down from the central mode.
(Applies to 1241-Type only.)
5. Applies to 1243/1245-Type only.
Recommended User Interfaces
ECL
DRIVER
VEE
360 •
360 •
VEE
50 • MICROSTRIP OR STRIPLINE-
CONTROLLED IMPEDANCE TRACES
50 •*
16
15
50 •*
0.1 µF
D
TRANSMITTER
D
* Locate these components as close to DATA/DATA inputs as possible.
1-496(C).c
Note: The 1241 gigabit version does not require the external 50 terminations since this termination is included inside the module.
Figure 2. dc-Coupled, Differential Input
6
Agere Systems Inc.
 

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