Delta Electronics LCP-1250B4MDRx specifications Optical Characteristics

Optical Characteristics

(VCC=3.3V ± 5%, Data Rate=1250Mb/sec, PRBS=27-1 NRZ)

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Transmitter
Output Optical Power (Avg.)	PO	-4		1	dBm
Optical Extinction Ratio	ER	9			dB
Center Wavelength	λC	1274	1310	1355	nm
Spectral Width (-20dB)	σ			1	nm
Side-mode Suppression Ratio	SMSR	30			dB
Optical Rise/ Fall Time	tr/tf			260	psec	1
Relative Intensity Noise	RIN			-120	dB/Hz
Output Eye	Compliant with IEEE 802.3z
Receiver
Sensitivity (Avg.)	PIN			-23	dBm	2
Input Optical Wavelength	λ	1270		1570	nm
LOS-Deasserted (Avg.)	PA			-23	dBm
LOS-Asserted (Avg.)	PD	-40			dBm
LOS-Hysteresis	PA-PD	0.5			dB
Overload (Avg.)	PO	-1			dBm

Notes:

1.These are unfiltered 20%~80% values

2.The sensitivity is provided at a BER of 1×10-12or better with an input signal consisting of 1250Mb/s, 27-1 PRBS and ER=9dB.

Mask of the eye diagram for the optical transmit signal

3	2007/11/29
	Rev. 0A
DELTA ELECTRONICS, INC.	www.deltaww.com