Delta Electronics SFBD-1250B4Q1R Specification of Receiver, Electrical Interface Characteristics

SFBD-1250B4Q1R

Note (5). Transmitter eye mask definition

4. Specification of Receiver

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

Normalized Time

	Parameter		Symbol	Min.	Typ.	Max.	Unit	Note
Input Optical Wavelength			λIN	1260	1310	1360	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	1550 to 1560nm				-33	dB
from	External
		1640 to 1665nm				-33	dB
Source

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 1310nm.

5. Electrical Interface Characteristics

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Transmitter
Total Supply Current	ICC			A	mA	Note (1)
Differential line input Impedance	RIN	90	100	110	Ohm
Differential Data Input Swing	VDT	400		1600	mVp-p	Note (2)
Transmitter Disable Input-High	VDISH	2		VCC	V	LVTTL
Transmitter Disable Input-Low	VDISL	0		0.8	V
Receiver
Total Supply Current	ICC			B	mA	Note (1)
Differential Data Output Swing	VDR	400	800	1200	mVp-p	Note (2)
Signal Detect Output Voltage-High	VLOSH	2		Vcc+0.3	V	Note (3)
Signal Detect Output Voltage-Low	VLOSL	0		0.8	V
		3				Revision: S0
						04/12/2007
DELTA ELECTRONICS, INC.					www.deltaww.com