DELTA ELECTRONICS, INC.
4
Nov., 2006
Rev. 0
C
www.deltaww.com
Optical Characteristics (LCP-1250B4QSR)
(V
CC
=3.135V to 3.465V, Data Rate=1.25Gb/sec, PRBS=2
7
-1 NRZ, 9/125
μ
m SMF)
Parameter Symbol
Min.
Typ.
Max.
Unit
Note
Transmitter
Output Optical Power (Avg.)
P
O
-9.5 -3 dBm
Optical Extinction Ratio
ER
9
dB
Center Wavelength
λ
C
1270 1310 1355 nm
Spectral Width
σ
4 nm
Optical Rise/ Fall Time
t
r
/t
f
260
psec 1
Total Jitter (pk-pk)
TJ
TX
220
psec
Relative Intensity Noise
RIN
-120
dB/Hz
Output Eye
Complies with the IEEE 802.3z/D2 specification, and is class 1 laser
eye safety
Receiver
Sensitivity (Avg.)
P
IN
-19
dBm 1
Input Optical Wavelength
λ
1310 nm
LOS- De-Asserted (Avg.)
P
D
-19
dBm 2
LOS- asserted (Avg.)
P
A
-30 dBm 2
LOS-Hysteresis P
D
-P
A
0.5
dB
Overload P
O
-3 dBm
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 1.25Gb/s,
2
7
-1 PRBS and ER=9dB.
Mask of the eye diagram for the optical transmit signal
