Table 8. Transmitter Optical Characteristics
(TC = 0˚C to 70˚C, V
CC
T,R = 3.3 V
±
5%)
Parameter
Output Optical Power (Average)
Symbol
P
OUT
Minimum
–10
Typical
–6.3
Maximum
0
Unit
dBm
Notes
50/125
µm
NA = 0.2
Note 1
62.5/125
µm
NA = 0.275
Note 1
FC-PI Std
Note 2
FC-PI Std
Note 3
FC-PI Std
FC-PI Std
20%–80%,
FC-PI Std
FC-PI Std
4, 5
4, 6
5, 6
5, 6
P
OUT
–10
–6.2
0
dBm
Optical Extinction Ratio
Optical Modulation Amplitude
(Peak-to-Peak) 2.125 Gb/s
Optical Modulation Amplitude
(Peak-to-Peak) 1.0625 Gb/s
Center Wavelength
Spectal Width – rms
Optical Rise /Fall Time
RIN
12
(OMA), maximum
Contributed Deterministic Jitter
(Transmitter) 2.125 Gb/s
Contributed Deterministic Jitter
(Transmitter) 1.0625 Gb/s
Contributed Random Jitter
(Transmitter) 2.125 Gb/s
Contributed Random Jitter
(Transmitter) 1.0625 Gb/s
P
OUT
TX_DISABLE Asserted
ER
OMA
OMA
λ
C
σ
T
rise/fall
RIN
DJ
DJ
RJ
RJ
P
OFF
196
156
830
9
392
350
860
0.85
150
–117
0.12
56
0.09
85
0.134
63
0.177
167
–35
dB
uW
uW
nm
nm
ps
dB/Hz
UI
ps
UI
ps
UI
ps
UI
ps
dBm
Notes:
1. Max P
out
is the lesser of 0 dBm or Maximum allowable per Eye Safety Standard.
2. An OMA of 196 is approximately equal to an average power of –9 dBm assuming an Extinction Ratio of 9 dB.
3. An OMA of 156 is approximately equal to an average power of –10 dBm assuming an Extinction Ratio of 9 dB.
4. Contributed DJ is measured on an oscilloscope in average mode with 50% threshold and K28.5 pattern.
5. Contributed RJ is calculated for 1x10
-12
BER by multiplying the RMS jitter (measured on a single rise or fall edge) from the oscilloscope by 14. Per
the FC-PI standard (Table 13 - MM jitter output, note 1), the actual contributed RJ is allowed to increase above its limit if the actual contributed
DJ decreases below its limits, as long as the component output DJ and TJ remain within their specified FC-PI maximum limits with the worst
case specified component jitter input.
6. In a network link, each component’s output jitter equals each component’s input jitter combined with each component’s contributed jitter.
Contributed DJ adds in a linear fashion and contributed RJ adds in a RMS fashion. In the Fibre Channel FC-PI Rev 11 specification “6.3.3 MM
jitter budget” section, there is a table specifying the input and output DJ and TJ for the transmitter at each data rate. In that table, RJ is found
from TJ – DJ, where the TX input jitter is noted as Delta T, and the TX output jitter is noted as Gamma T. Our component contributed jitter is such
that, if the maximum specified input jitter is present, and is combined with our maximum contributed jitter, then we meet the specified maximum
output jitter limits listed in the FC-PI MM jitter specification table.
10
10
AVAGO [ AVAGO TECHNOLOGIES LIMITED ]
