Delta Electronics LCP-2488A4EDRxM User Manual
LCP-2488A4EDRxM
DELTA ELECTRONICS, INC.
3
Nov., 2006
Rev. 0A
www.deltaww.com
Optical Characteristics
(V
CC
=3.3V
± 5%, Data Rate=2.488Gb/sec, PRBS=2
23
-1 NRZ)
Parameter Symbol
Min.
Typ.
Max.
Unit
Note
Transmitter
Output Optical Power (Avg.)
P
O
-9.5 -4 dBm
Optical Extinction Ratio
ER
8.2
dB
Center Wavelength
λ
C
830 850 860 nm
Spectral Width (RMS)
σ
0.85
nm
Optical Rise/Fall Time
t
r
/ t
f
150/200
psec 1
Relative Intensity Noise
RIN
-117
dB/Hz
Output Eye
Complies with the IEEE 802.3z/D2 specification, and is class 1 laser
eye safety
eye safety
Receiver
Sensitivity (Avg.)
@ OC-48
@ 2x Fibre Channel
@ Gigabit Ethernet
@ OC-12
@ OC-3
@ OC-48
@ 2x Fibre Channel
@ Gigabit Ethernet
@ OC-12
@ OC-3
P
IN
-17
-17
-17
-20
-21
dBm
2
3
3
2
2
3
3
2
2
Input Optical Wavelength
λ
850 nm
LOS-De-asserted (Avg.)
P
A
-17
dBm
LOS-Asserted (Avg.)
P
D
-30 dBm
LOS-Hysteresis P
A
-P
D
0.5
dB
Overload P
O
-3 dBm
Notes:
1. These are 20%~80% values
2. Measured with 9dB extinction ratio light source and PRBS 2
23
-1 test pattern.
3. Measured with 9dB extinction ratio light source and PRBS 2
7
-1 test pattern.
Mean level of logical “1”
Mean level of logical “0”
A
m
pl
it
ud
e
Time
Optical Pulse Mask with Bessel Filter Specified in ITU-T G.957
1.25
1.00
0.75
0.25
0.00
-0.25
Mean level of logical “1”
Mean level of logical “0”
A
m
pl
it
ud
e
Time
Optical Pulse Mask with Bessel Filter Specified in ITU-T G.957
1.25
1.00
0.75
0.25
0.00
-0.25
Mask of the eye diagram for the optical transmit signal