1.25G SFP Optical Module

1.25G,Duplex LC Connector,1000Base-LX/LH,Wavelength:1310/1550nm, SM Fiber,transmission distance 10Km(6.2 miles) to 120km(62.1 miles) Compatible with Cisco/3COM modules

Category: SFP Fiber Optical Modules

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Product Description

Description:

The 1.25G SFP optical module is Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). They simultaneously comply with Gigabit Ethernet as specified in IEEE Std 802.31 and 1x and 2x Fiber Channel as defined in FC-PI 13.03.
The 1000BASE-LX/LH (long wavelength/long haul) SFP module interfaces fully comply with the IEEE 802.3z 1000BASE-LX standard.Their higher optical quality allows them to reach 6.2 miles (10 km) to 62.1 miles(100km) over single-mode fiber (SMF) .

Features:

l Up to 1.25Gb/s bi-directional data links

l Hot-pluggable SFP footprint

l 1310/1550nm FP/DFB, SM Fiber

       l       Duplex LC connector
       l       Very low jitter
       l       Up to 100km on 9/125μm SMF
       l       Metal enclosure, for lower EMI
       l       Single 3.3V power supply
       l       Low power dissipation <700mW typical

Application:

Switch to switch interface
High speed I/O for file servers .
Bus extension applications

Description:

The Small Form Factor Pluggable (SFP)
transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing
Agreement (MSA). They simultaneously comply with Gigabit Ethernet as specified in
IEEE Std 802.31 and 1x and 2x Fiber Channel as defined in FC-PI 13.03.

Absolute Maximum Ratings:

Parameter	Symbol	Min	Typ	Max	Unit	Ref.
Maximum Supply Voltage	Vcc	0.5		4.5	V
Storage Temperature	TS	-40		100	℃
Case Operating Temperature	TOP	-40		85	℃
Relative Humidity	RH	0		85	%	1

Electrical Characteristics (TOP = -40 to 85 ℃,
VCC = 3.00 to 3.60 Volts)

Parameter	Symbol	Min	Typ	Max	Unit	Ref.
Supply Voltage	Vcc	3.00		3.60	V
Supply Current	Icc		200	300	mA
Transmitter
Input differential impedance	Rin		100		Ω	2
Single ended data input swing	Vin,pp	250		1200	mV
Transmit Disable Voltage	VD	Vcc – 1.3		Vcc	V
Transmit Enable Voltage	VEN	Vee		Vee+ 0.8	V	3
Transmit Disable Assert Time				10	us
Receiver
Single ended data output swing	Vout,pp	300	400	800	mV	4
Data output rise time	tr		100	175	ps	5
Data output fall time	tf		100	175	ps	5
LOS Fault	VLOS fault	Vcc – 0.5		VccHOST	V	6
LOS Normal	VLOS norm	Vee		Vee+0.5	V	6
Power Supply Rejection	PSR	100			mVpp	7
Deterministic Jitter Contribution	RX Δ DJ			51.7	ps	8
Total Jitter Contribution	RX Δ TJ			122.4	ps

Notes:

1. Non condensing.

2. AC coupled.

3. Or open circuit.

4. Into 100 ohm differential termination.

5. 20 – 80 %

6. LOS is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no
signal detected.

7. All transceiver specifications are compliant with a power supply
sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through
the power supply filtering network shown on page 23 of the Small Form-factor
Pluggable (SFP) Transceiver MultiSource Agreement (MSA), September 14, 2000.

8. Measured with DJ-free data input signal. In actual application, output
DJ will be the sum of input DJ and DDJ.

Optical Characteristics (TOP = 0 to 70℃,
VCC = 3.00 to 3.60 Volts)

Parameter	Symbol	Min	Typ	Max	Unit	Ref.
Transmitter
Output Opt. Power	POUT	-9		-3	dBm	1
Optical Wavelength	λ	1270	1310	1360	nm	2
Spectral Width	σ			3	nm	2
Optical Modulation Amplitude	OMA	174			μW	2,3
Optical Rise/Fall Time	tr/ tf		100	160	ps	4
RIN				-120	dB/Hz
Deterministic Jitter Contribution	TX Δ DJ		20	56.5	ps	5
Total Jitter Contribution	TX Δ TJ		70	119	ps
Optical Extinction Ratio	ER	9			dB
Receiver
Average Rx Sensitivity @ 2.125	RSENS1			-21	dBm	6, 7
Gb/s (2X Fiber Channel)
Average Rx Sensitivity @ 1.25 Gb/s	RSENS2			-22	dBm	6, 7
(Gigabit Ethernet)
Average Rx Sensitivity @ 1.06 Gb/s	RSENS1			-22	dBm	6, 7
(1X Fiber Channel)
Stressed RX sens. =1.25 Gb/s			-18	-14.5	dBm
Average Received Power	RxMAX			0	dBm
Receiver Elec. 3 dB cutoff freq.				1500	MHz
Optical Center Wavelength	λC	1265		1600	nm
Return Loss		12			dB
LOS De-Assert	LOSD		-23	-19	dBm
LOS Assert	LOSA	-30	-25		dBm
LOS Hysteresis		0.5			dB