Delta Electronics LCP-4250A4CDR - Manual (Page 3)

DELTA ELECTRONICS, INC.
3 2008/3/18
Rev. 0A
www.deltaww.com
Optical Characteristics
(V
CC
=3.135V to 3.465V, Data Rate=4.25Gb/sec, PRBS=2 7 -1 NRZ, 50/125 µm MMF)
Parameter Symbol Min. Typ. Max. Unit Note
Transmitter
Output Optical Power (Avg.)
P
O
-9 -3 dBm 1
Optical Modulation Amplitude
@ 4.25 Gb/s
@ 2.125 Gb/s
@ 1.0625 Gb/s
OMA
247
196
156
µW 2
Center Wavelength 830 860 nm
Spectral Width (RMS) 0.85 nm
Optical Rise/Fall Time (20% - 80%) t
r
/ t
f
90/90 psec 3
Relative Intensity Noise RIN -118 dB/Hz
Output Eye
Complies with the ANSI FC-PI Rev. 13 specification, and is class 1
laser eye safety
Receiver
Average Receiver Power P
x (MAX)
-3 dBm .
Sensitivity in OMA
@ 4.25 Gbit/s
@ 2.125 Gb/s
@ 1.062 Gb/s
P
IN
61
49
31
uW 4
Input Optical Wavelength λ 830 870 nm
LOS-De-asserted (Avg.) P
D
-19 dBm
LOS-Asserted (Avg.) P
A
-30 dBm
LOS-Hysteresis P
D
-P
A
0.5 dB
Optical Return Loss ORL 12 dB
Notes:
1. Into multimode fiber, 62.5
µm or 50µm diameter.
2. Equivalent extinction ratio specification for Fiber Channel. Allows smaller ER at higher average power.
3. Measured at nominal data rate. These are unfiltered 20%~80% values.
4. The sensitivity is tested at a BER of 1×10
-12 or better with an input signal consisting of 2 7 -1 NRZ PRBS.
Mask of the eye diagram for the optical transmit signal