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DELTA ELECTRONICS, INC.
3 2008/1/15
Rev. 0A
www.deltaww.com
Optical Characteristics
Transmitter
(V
CC
=3.3V ± 5%, Data Rate=1250Mb/sec, PRBS=2
7
-1 NRZ)
Parameter Symbol Min. Typ. Max. Unit Note
Output Optical Power (Avg.)
LCP-1250D4MxxRB
LCP-1250D4RxxRB
LCP-1250D4VxxRB
P
-5
0
0
0
+5
+5
dBm
Optical Extinction Ratio ER 9 dB
Center Wavelength
LCP-1250D4x47RB
LCP-1250D4x49RB
LCP-1250D4x51RB
LCP-1250D4x53RB
LCP-1250D4x55RB
LCP-1250D4x57RB
LCP-1250D4x59RB
LCP-1250D4x61RB
C
1464.5
1484.5
1504.5
1524.5
1544.5
1564.5
1584.5
1604.5
1470
1490
1510
1530
1550
1570
1590
1610
1477.5
1497.5
1517.5
1537.5
1557.5
1577.5
1597.5
1617.5
nm
Spectral Width (-20dB)
1 nm
Side-mode Suppression Ratio SMSR 30
dB
Optical Rise/ Fall Time
t
r
/t
f
260 psec 1
Relative Intensity Noise
RIN -120 dB/Hz
Output Eye Compliant with IEEE 802.3z
Receiver
(V
CC
=3.3V ± 5%, Data Rate=1250Mb/sec, PRBS=2
7
-1 NRZ)
Parameter Symbol Min. Typ. Max. Unit Note
Sensitivity (Avg.) @1.25Gbps
LCP-1250D4MxxRB
LCP-1250D4RxxRB
LCP-1250D4VxxRB
P
S
-24
-24
-30
dBm 2
Input Optical Wavelength
1450 1620 nm
LOS-Deasserted (Avg.)
LCP-1250D4MxxRB
LCP-1250D4RxxRB
LCP-1250D4VxxRB
P
A
-24
-24
-30
dBm
LOS-Asserted (Avg.) P
D
-40 dBm
LOS-Hysteresis P
A
-P
D
0.5 dB
Overload (Avg.)
LCP-1250D4MxxRB
LCP-1250D4RxxRB
LCP-1250D4VxxRB
P
0
-3
-3
-9
dBm
Reflectance r -12 dB
Notes:
1. These are unfiltered 20%~80% values.
2. The sensitivity is provided at a BER of 1×10
-12
or better with an input signal consisting of 1250Mb/s,
2
7
-1 PRBS and ER=9dB.