Delta Electronics SFBD-1250A4Q1R manual Specification of Receiver, Note 4 Spectral Width RMS

							SFBD-1250A4Q1R
Note (4): Spectral Width (RMS)
Center Wavelength	RMS spectral width(max)				Transmitter Spectral Limits
nm	nm
1260	2.09		4
1270	2.52
1280	3.13		3
1290
1295		(nm)	2
1297	3.50	RMS
1329
1331			1
1340
1350	3.06		0
1360	2.58
			1240	1260	1280	1300	1320	1340	1360	1380
						Center Wavelength (nm)

Note (5). Transmitter eye mask definition

	1+ Y3
	1
Amplitude	1- Y1
	0.5
Normalized	Y1
	0
	-Y2
	0	X1	X2	1- X2	1-X1	1

Normalized Time

4. Specification of Receiver

	Parameter		Symbol	Min.	Typ.	Max.	Unit	Note
Input Optical Wavelength			λIN	1480	1490	1500	nm	PIN-PD
Receiver Sensitivity			PIN			-23	dBm	Note (1)
Input Saturation Power (Overload)			PSAT	-3			dBm
Signal Detect -Assert Power			PA			-24	dBm
Signal Detect -Deassert Power			PD	-44			dBm	Note (2)
Signal Detect Hysteresis			PA-PD	0.5	2	5	dB
Data Output Rise/Fall time			tr/tf			260	ps	Note (3)
Optical Receiver Reflectance						-12	dB	Note (4)
Optical	Isolation	1260 to 1360nm				-43	dB
from	External	1550 to 1560nm				-33	dB
Source		1640 to 1665nm				-33	dB

Note (1). Measured with Light source 1490nm, ER=9dB; BER =<10-12@PRBS=27-1 NRZ Note (2). When SD deasserted, the data output is Low-level (fixed)

Note (3). These are 20%~80% values.

Note (4). Measured at wavelength of 1490nm.

3	Revision: S0
	04/12/2007
DELTA ELECTRONICS, INC.	www.deltaww.com