Receiver Optical Characteristics
(T
C
= 0 °C to +80 °C, V
CC
= 3.3 V ± 5%, Typical T
C
= +40 °C, V
CC
= 3.3 V)
Parameter
Input Optical Power Sensitivity
Input Optical Power Saturation
Operating Center Wavelength
Stressed Receiver Sensitivity
Stressed Receiver Eye Opening
Return Loss
Signal Detect
Asserted
De-asserted
Hysteresis
120
12
Symbol
P
IN MIN
P
IN MAX
l
C
Min.
Typ.
–18.5
Max.
-16
Unit
dBm avg.
dBm avg.
Reference
1
2
–2
830
–1
860
–15.5
190
19
-11.3
nm
dBm
ps
dB
3
4
5
P
A
P
D
P
A
-P
D
-31
0.5
-19
-21
2
-17
dBm avg.
dBm avg.
dB
6
Notes:
1. Sensitivity is defined as the average input power with the worst case, minimum, Extinction Ratio necessary to produce a BER of 10
-12
at the center of
the Baud interval using a 2.5 GBd Pseudo Random Bit Sequence of length 2
23
– 1 (PRBS), or equivalent, test pattern. For this parameter, input power
is equivalent to that provided by an ideal source, i.e., a source with RIN and switching attributes that do not degrade the sensitivity measurement. All
channels not under test are operating receiving data with an average input power up to 6 dB above PIN MIN.
2. Saturation is defined as the average input power that produces at the center of the output swing a receiver output eye width less than 120 ps where
BER < 10
-12
using a 2.5 GBd Pseudo Random Bit Sequence of length 2
23
–1 (PRBS), or equivalent, test pattern.
3. Stressed receiver sensitivity is defined as the average input power necessary to produce a BER < 10
-12
at the center of the Baud interval using a 2.5
GBd Pseudo Random Bit Sequence of length 2
23
– 1 (PRBS), or equivalent, test pattern. For this parameter, input power is conditioned with 2.5 dB
Inter-Symbol Interference, ISI, (min), 33 ps Duty Cycle Dependent Deterministic Jitter, DCD DJ (min) and 6 dB ER (ER Penalty = 2.23 dB). All
channels not under test are operating receiving data with an average input power up to 6 dB above PIN MIN.
4. Stressed receiver eye opening is defined as the receiver output eye width where BER < 10
-12
at the center of the output swing using a 2.5 GBd
Pseudo Random Bit Sequence of length 2
23
– 1 (PRBS), or equivalent, test pattern. For this parameter, input power is an average input optical power
of –10.7 dBm and conditioned with 2.5 dB ISI (min), 33 ps DCD DJ (min), 6 dB ER (ER Penalty = 2.23 dB). All channels not under test are operating
receiving data with an average input power up to 6 dB above PIN MIN.
5. Return loss is defined as the ratio, in dB, of the received optical power to the optical power reflected back down the fiber.
6. Signal Detect assertion requires all optical inputs to exhibit a minimum 6 dB Extinction Ratio at P
A
= –17 dBm. All channels not under test are
operating with PRBS 23 serial encoded patterns, asynchronous with the channel under test, and an average input power up to 6 dB higher than P
IN
MIN.
9
AVAGO [ AVAGO TECHNOLOGIES LIMITED ]
