Delta Electronics LCP-2488A4EDRxM specifications Optical Characteristics

LCP-2488A4EDRxM

Optical Characteristics

(VCC=3.3V ± 5%, Data Rate=2.488Gb/sec, PRBS=223-1 NRZ)

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Transmitter
Output Optical Power (Avg.)	PO	-9.5		-4	dBm
Optical Extinction Ratio	ER	8.2			dB
Center Wavelength	λC	830	850	860	nm
Spectral Width (RMS)	σ			0.85	nm
Optical Rise/Fall Time	tr/ tf			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
Receiver
Sensitivity (Avg.)				-17		2
@ OC-48
@ 2x Fibre Channel	PIN			-17	dBm	3
@ Gigabit Ethernet				-17		3
@ OC-12				-20		2
@ OC-3				-21		2
Input Optical Wavelength	λ		850		nm
LOS-De-asserted (Avg.)	PA			-17	dBm
LOS-Asserted (Avg.)	PD	-30			dBm
LOS-Hysteresis	PA-PD	0.5			dB
Overload	PO	-3			dBm

Notes:

1.These are 20%~80% values

2.Measured with 9dB extinction ratio light source and PRBS 223-1 test pattern.

3.Measured with 9dB extinction ratio light source and PRBS 27-1 test pattern.

Amplitude

1.25

1.00 Mean level of logical “1”

0.75

0.25
0.00	Mean level of logical “0”
-0.25

Time

Optical Pulse Mask with Bessel Filter Specified in ITU-T G.957

Mask of the eye diagram for the optical transmit signal

3	Nov., 2006
	Rev. 0A
DELTA ELECTRONICS, INC.	www.deltaww.com