Overview

The SFP transceivers are high performance, cost effective modules supporting dual data-rate of 1.25Gbps and 20km transmission distance with SMF.
The transceiver consists of three sections: a FP laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.

Features

Up to 1.25Gbps data links

1310nm FP laser and photo PIN detector for 20km transmission

Compliant with SFP MSA and SFF-8472 with Duplex LC receptacle

Digital Diagnostic Monitoring: Internal Calibration or External Calibration

Compatible with SONET

Compatible with RoHS

+3.3V single power supply

Applications

SDH and SONET system
Fiber Channel
Switch to Switch interface
Switched backplane applications
Router/Server interface
Other optical transmission systems

Optical and Electrical Characteristics

Parameter		Symbol		Min	Typical	Max	Unit	Notes
Transmitter
Centre Wavelength				1260	1310	1360	nm
Spectral Width(RMS)						4	nm
Average OutputPower			Pout	-9		-3	dBm	1
Extinction Ratio			ER	9			dB
Optical Rise/Fall Time (20%~80%)			tr/tf			0.26	ns
Data Input Swing Differential			VIN	400		1800	mV	2
Input Differential Impedance			ZIN	90	100	110	O
TXDisable	Disable			2.0		Vcc	V
TXDisable	Enable			0		0.8	V
TXFault	Fault			2.0		Vcc	V
TXFault	Normal			0		0.8	V
Receiver
Centre Wavelength				1260		1580	nm
Receiver Sensitivity						-23	dBm	3
Receiver Overload				-3			dBm	3
LOS De-Assert			LOSD			-24	dBm
LOS Assert			LOSA	-35			dBm
LOS Hysteresis				1		4	dB
Data Output Swing Differential			Vout	700		900	mV	4
LOS			High	2.0		Vcc	V
LOS			Low			0.8	V

Notes:
1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 27-1 test pattern @1250Mbps, BER =1x10-12.
4. Internally AC-coupled.