1000base SFP-1.25g-Sx Dual LC 850nm SFP+ with Ddm Compatible Intel

• Type: Fiber Transceiver
• Wiring Devices: Integrated Wiring
• Certification: CE, ISO, RoHS, GS
• Condition: New
• Usage: Telephone, Computer
• Support Network: Ethernet
• Model NO.: SFP-GE-SX
• Information Content: Data
• Power Supply: 3.3V
• Connector: Duplex LC
• Transport Package: Antistatic Bubble Shell and Carton
• Specification: Width: 13.5mm high 8.5mm
• Trademark: TELEFLY or OEM
• Origin: China Shenzhen
• Production Capacity: 50000/Week

Product Description

1.25Gb/s SFP (Small Form Pluggable) Long Wavelength (850nm) Transceiver
SFP-GE-SX Overview 

 SFP-GE-SX SFP optical transceivers are based on Gigabit Ethernet IEEE 802.3 standard and Fiber Channel FC-PI Rev.5.0 and provide a quick and reliable interface for the GE/FC application. The digital diagnostics functions are available via the 2-wire serial bus specified in the SFP MSA. In addition, they comply with the Small Form Factor Pluggable Multi-Source Agreement (MSA) and SFF-8472.

Product Features

• Up to 1.25 Gb/s bi-directional data links
• Compliant with IEEE 802.3z Gigabit Ethernet and 1000BASE-SX
• Compliant with SFP MSA
• Hot-pluggable SFP footprint
• 850nm VCSEL laser transmitter
• Duplex LC connector
• Built-in digital diagnostic functions
• Up to 550m on 50/125um MMF
• Up to 300m on 62.5/125um MMF
• Single power supply 3.3V
• RoHS Compliant
• Class 1 laser product complies with EN 60825−1
• Operating temperature range:0ºC to70ºC

Applications

• 1.25 Gb/s Gigabit Ethernet
• 1.063 Gb/s Fiber Channel

Ordering Information
 

Part Number	Description	Color on Clasp
SFP-GE-SX	GE/FC SFP 850nm LC Connectors 550m on MMF, with DOM function.	black
For More Information:   SfpCodingBox (Dongguan) Limited   Web: sztelefly.en.made-in-china.com

General Specifications
 

Parameter	Symbol	Min	Typ	Max	Unit	Remarks
Data Rate	DR		1.25		Gb/s	1
	DR		1.062		Gb/s	2
	DR
Bit Error Rate	BER			10^-12
Operating Temperature	TOP	0		70	ºC	3
Storage Temperature	TSTO	-40		85	ºC	4
Supply Current	IS		130	180	mA	5
Input Voltage	VCC	3.14	3.3	3.46	V
Maximum Voltage	VMAX	-0.5		4	V	5

Notes: 
1. IEEE 802.3
2. FC-PI-2 Rev 5
3. Case temperature
4. Ambient temperature
5. For electrical power interface


Optical - Characteristics - Transmitter
VCC=3.14V to 3.46V, TC=0ºC to 70ºC

Parameter	Symbol	Min	Typ	Max	Unit	Remarks
Output Optical Power 50/125um fiber, NA=0.2 62.5/125um fiber, NA=0.275	PTX	-9.5		-3	dBm	1
Optical Center Wavelength	λ C	830		860	nm
Optical Modulation [email protected]/s	OMA	156			µW	2
Extinction [email protected]/s	ER	9			dB
Spectral Width (RMS)@-20dB	Δλ			0.85	nm
Optical Rise/Fall Time (20%-80%)	tr /tf		100	150	ps
Relative Intensity Noise	RIN			-120	dB/Hz
Deterministic Jitter Contribution	DJ		20	60	ps
Total Jitter Contribution	TJ		65	125	ps
Mask Margin			45		%

Notes:
1. Class 1 Product
2. Equivalent extinction ratio specification for FC 


Optical- Characteristics - Receiver
VCC=3.14V to 3.46V, TC=ºC to 70ºC

Parameter	Symbol	Min	Typ	Max	Unit	Remarks
Optical Receiver Power	PRX			0	dBm	1
Optical Center Wavelength	λ C	770		860	nm
Receiver Sensitivity@ 1.063Mb/s	RX_SEN1			-23	dBm	2
Receiver Sensitivity@ 1.25Mb/s	RX_SEN2			-23	dBm	3
Optical Return Loss	ORL	12			dB
Receiver Electrical 3dB Upper cutoff frequency				1500	MHz
LOS Assert	LOSA	-30			dBm
LOS De-Assert	LOSD			-23	dBm
LOS Hysteresis	LOSH	0.5			dB

Notes: 
1. Average
2. FC-PI-2 Rev.5
3. IEEE 802.3


Electrical - Characteristics - Transmitter
VCC=3.14V to 3.46V, TC=ºC to 70ºC

Parameter	Symbol	Min	Typ	Max	Unit	Remarks
Input differential impedance	RIN		100		Ω
Single ended data input swing	VIN_PP	250		1200	mV
Transmit disable voltage	VD	2		VCC	V
Transmit enable voltage	VEN	VEE		VEE+0.8	V

 
Electrical - Characteristics - Receiver
VCC=3.14V to 3.46V, TC=ºC to 70ºC

Parameter	Symbol	Min	Typ	Max	Unit	Remarks
Single ended data output swing	VOUT_PP	2500	450	550	mV
Data output rise/fall time (20%-80%)	TR/TF		90	175	ps
LOS Fault	VLOS_A	2		VCC_HOST	V
LOS Normal	VLOS_D	VEE		VEE+0.5	V

 

Digital Diagnostic Functions

SFP-GE-SX support the 2-wire serial communication protocol as defined in the SFP MSA. Digital diagnostic information is accessible over the 2-wire interface at the address 0xA2. Digital diagnostics for SFP-GE-SX are internally calibrated by default. A micro controller unit inside the transceiver gathers the monitoring information and reports the status of transceiver.

Transceiver Temperature, internally measured, represented as a 16 bit signed twos complement value in increments of 1/256 degrees Celsius, Temperature accuracy is better than ±3 degrees Celsius over specified operating temperature and voltage.

Transceiver Supply Power, internally measured, represented as a 16 bit unsigned integer with the voltage defined as the full 16 bit value (0 -65535) with LSB equal to 100 µVolt, yielding a total range of 0 to +6.55 Volts.

Transceiver TX bias current, , internally measured, represented as a 16 bit unsigned integer with the current defined as the full 16 bit value (0 -65535) with LSB equal to 2 µA, yielding a total range of 0 to 131mA. Accuracy is better than ±10%over specified operating temperature and voltage.

Transceiver TX output power, internally measured, represented as a 16 bit unsigned integer with the power defined as the full 16 bit value (0 -65535) with LSB equal to 0.1 µW. Data is assumed to be based on measurement of laser monitor photodiode current. Accuracy is better than ±3dB over specified temperature and voltage. Data is not valid when the transmitter is disabled.

Transceiver RX received optical power, internally measured, represented as a 16 bit unsigned integer with the power defined as the full 16 bit 35 value (0 -65535) with LSB equal to 0.1 µW. Accuracy is better than ±3dB over specified temperature and voltage.
 

Parameter	Symbol	Accuracy	Units	Report Range		Unit	Remarks
Internal Calibration
Temperature	TMON	±3	ºC	-40	95	ºC
Voltage	VMON	±0.1	V	2.7	3.9	V
Bias Current	IMON	±10	%	1	15	m
Tx Power	PMON	±3	dB	-12	1	dBm
Rx Power	PMON	±3	dB	-25	1	dBm

Block-Diagram-of-Transceiver



Transmitter Section
The VCSEL driver accept differential input data and provide bias and modulation currents for driving a laser. An automatic power-control (APC) feedback loop is incorporated to maintain a constant average optical power. 850 nm VCSEL in an eye safe optical subassembly (OSA) mates to the fiber cable.

TX_DISABLE 
The TX_DISABLE signal is high (TTL logic "1") to turn off the laser output. The laser will turn on within 1ms when TX_DISABLE is low (TTL logic"0").

TX_FAULT
When the TX_FAULT signal is high, output indicates a laser fault of some kind. Low indicates normal operation.

Receiver Section
The receiver utilizes a PIN detector integrated with a trans-impedance preamplifier in an OSA. This OSA is connected to a Limiting Amplifier which providing post-amplification quantization, and optical signal detection. The limiting Amplifier is AC-coupled to the transimpedance amplifier, with internal 100Ω differential termination.

Receive (RX_LOS)
The RX_LOS is high (logic "1") when there is no incoming light from the companion transceiver. This signal is normally used by the system for the diagnostic purpose. The signal is operated in TTL level.
Controller Section
The micro controller unit monitors the operation information of LD driver and Limiting Amplifier. And report these status to the customer.

Dimensions



  ALL DIMENSIONS ARE ±0.2mm UNLESS OTHERWISE SPECIFIED
                                               UNIT: mm



Electrical Pad Layout






Pin Assignment

PIN #	Symbol	Description	Remarks
1	VEET	Transmitter ground (common with receiver ground)	1
2	T_FAULT	Transmitter Fault. Not supported
3	T_DIS	Transmitter Disable. Laser output disabled on high or open	2
4	MOD_DEF(2)	Module Definition 2. Data line for serial ID	3
5	MOD_DEF(1)	Module Definition 1. Clock line for serial ID	3
6	MOD_DEF(0)	Module Definition 0. Grounded within the module	3
7	Rate Select	No connection required
8	LOS	Loss of Signal indication. Logic 0 indicates normal operation	4
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

Notes:
1. Circuit ground is isolated from chassis ground
2. Disabled:TDIS>2Vor open, Enabled: TDIS<0.8V
3. Should Be pulled up with 4.7k -10k ohm on host board to a voltage between 2V and 3.6V
4. LOS is open collector output