1.25g Sfp Module 850nm Multi mode 550m Ddm Lc Interface Dual Mode Sfp Fiber Transceiver Module

√ Multi-sourced SFP package with dual LC/PC receptacles;

√ Single mode dual fiber transmission

√ Up to 550m with 50/125μm MMF;300M with 62.5/125μm MMF

√ AC coupled for Rx and Tx side

√ 0°C to +70°C for commercial level,-40°C to +85°C for industrial level;

√ Operates at data rate 1.25Gbps;

√ Complies with MIL-STD-883/GR-468

√ Complies with lots of brands of switch such as cisco h3c…….

√ Can be with or without DDM

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Product Detail

Notes:

switch from a high state to a low state.
1)Value of output power and sensitivity can be customized according to the demand

Ordering Information：

Designing notice：

DSFP Pin description

Pin	Descriptions	Pin	Descriptions
1	VEET	Transmitter Ground (Common with Receiver Ground)	1
2	TFAULT	Transmitter Fault.	2
3	TDIS	Transmitter Disable. Laser output disabled on high or open.	3
4	MOD_DEF(2)	Module Definition 2. Data line for Serial ID.	4
5	MOD_DEF(1)	Module Definition 1. Clock line for Serial ID.	4
6	MOD_DEF(0)	Module Definition 0. Grounded within the module.	4
7	Rate Select	No connection required
8	LOS	Loss of Signal indication. Logic 0 indicates normal operation.	5
9	VEER	Receiver Ground (Common with Transmitter Ground)	1
10	VEER	Receiver Ground (Common with Transmitter Ground)	1
11	VEER	Receiver Ground (Common with Transmitter Ground)	1
12	RD-	Receiver Inverted DATA out. AC Coupled
13	RD+	Receiver Non-inverted DATA out. AC Coupled
14	VEER	Receiver Ground (Common with Transmitter Ground)	1
15	VCCR	Receiver Power Supply
16	VCCT	Transmitter Power Supply
17	VEET	Transmitter Ground (Common with Receiver Ground)	1
18	TD+	Transmitter Non-Inverted DATA in. AC Coupled.
19	TD-	Transmitter Inverted DATA in. AC Coupled.
20	VEET	Transmitter Ground (Common with Receiver Ground)	1

Small Form-factor Pluggable (SFP) Transceiver MultiSource Agreement (MSA)

SFP Host Board Mechanical Layout

Recommended Bezel Design

Absolute Maximum Ratings：

Recommended Operating Conditions：

Operating Conditions：

1.Transmitter（T=25℃, Vcc=3~3.6V (+3.3V)） 1.25G

Parameter		Symbol			Min.	Typ	Max.	Unit
Center Wavelength		lc			840	850	860	nm
Spectral width		△l	VICSEL@RMS		-		0.85	nm
Output Power	0~550m	850		Po	-9	-	-3	dBm
Extinction Ratio		ER		1.25G	9		-	dB
Supply Current		ICCT			-		150	mA
Input Differential Impedance		Rin				100		Ω
Data Input Swing Differential		Vin			300		1200	mV
Optical Modulation Amplitude		OMA			174			μW
Transmit Disable Voltage		VD			2.0		Vcc	V
Transmit Enable Voltage		VEN			0		0.8	V
Transmit Disable Assert Time							10	us
Optical Rise/Fall Time		Tr/ Tf (20-80%)				150	260	ps
Deterministic Jitter Contribution		TX ΔDJ					51.7	ps
Total Jitter Contribution		TX ΔTJ					90	ps
Output Optical Eye		IUT-T G.957 Compliant

2.Receiver （T=25℃, Vcc=3~3.6V (+3.3V) 1.25G

Parameter			Symbol		Min.	Typ	Max.	Unit
Wavelength Range			lc		760		860	nm
Sensitivity	0~550m	1.25G	Pin	PMIN	-	-18	-17	dBm
MAX. Input Power (Saturation)			PMAX		-3	-	-
Signal Detect Assert			PA		-	-	-20
Signal Detect De-assert			PD		-24	-	-
Signal Detect Hysteresis			PHYS		1	-	4
Supply Current			ICCR		-	-	150	mA
Data Output Swing Differential			Vout		400	-	1000	mV
Signal Detect Voltage – High			VSDHC		2.0	-	VCC	V
Signal Detect Voltage – Low			VSDL		0	-	0.8	V