Receiver Optical Characteristics
T
C
= -10 °C to +85 °C, V
CC
T, V
CC
R = 3.3 V ± 10%
Parameter
Input Optical Power [Overdrive]
Receiver Sensitivity
(Optical Input Power)
1.25 Gb/s
Input Optical Modulation Amplitude (Pk-Pk)
1.0625 Gb/s [Sensitivity]
Stressed receiver sensitivity
1.25 Gb/s
Stressed receiver sensitivity (OMA)
1.0625 Gb/s
Return Loss
Loss of Signal – Assert
Loss of Signal - De-Assert
Loss of Signal - Hysteresis
P
A
P
D
P
D
-P
A
12
-31
-30.5
0.5
-17.5
-17
OMA
31
-13.5
-12.5
55
67
µW,
OMA
dB
dBm avg
dBm avg
dB
µW,
OMA
dBm
2, 4, 5
50/125 µm fiber
62.5/125 µm fiber
Note 1, 6
50/125 µm fiber,
62.5/125 µm fiber,
Note 3, 6
Symbol
P
IN
PRMIN
Minimum
Typical
Maximum
0
-17
Unit
dBm avg
dBm
Notes
1, 6
Notes:
1. IEEE 802.3.
2. 50/125 µm. An OMA of 31 is approximately equal to an average power of –17 dBm with an Extinction Ratio of 9 dB.
3. 1.0625 Gb/s Stressed receiver vertical eye closure penalty (ISI) min is 0.96 dB for 50 µm fiber. Stressed receiver DCD component min (at TX) is 80 ps.
4. These average power values are specified with an Extinction Ratio of 9 dB. The loss of signal circuitry responds to valid 8B/10B encoded peak to
peak input optical power, not average power.
5. Input Optical Modulation Amplitude (commonly known as sensitivity) requires a valid 8B/10B encoded input.
6. BER = 10-
12
.
10
10
AVAGO [ AVAGO TECHNOLOGIES LIMITED ]
