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1.25G Compact SFP CSFP Dual BIDI TX1310nm RX1490nm 20km LC DOM

Name: 125G Compact SFP CSFP Dual BIDI TX1310nm RX1490nm 20km LC DOM
Brand: Gigaopto
Price: 1 USD

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Brand Name :	Gigaopto
Model Number :	GCS-B3412-B3412-20C
Certification :	CE, FCC, ROHS, ISO9001, ISO14000, MSDS, REACH, CP65, TUV, UL
Price :	negotiable
Payment Terms :	T/T, L/C
Supply Ability :	50,000pcs/month
Delivery Time :	1-5 work days

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1.25G Compact SFP CSFP Dual BIDI TX1310nm RX1490nm 20km LC DOM

1.25G Compact SFP (CSFP) dual BIDI TX1310nm RX1490nm 20km LC DOM

Description

This 1000Base 2-fiber Bi-directional compact SFP Transceiver is a version of SFP with the same mechanical form factor allowing two independent bidirectional channels per port. It is designed to use in high density Gigabit Ethernet/1G Fiber Channel applications, providing 20km links using the nominal wavelength of TX1310nm/RX1490nm over standard single mode fiber.

It is with the SFP 20-pin connector to allow hot plug capability. Digital diagnostic functions are available via an I2C series bus specified in the MSA SFF-8472. The transmitter section uses a multiple quantum well 1310nm DFB laser and is a class 1 laser compliant according to International Safety Standard IEC 60825. The receiver section uses an integrated 1490nm detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC.

The CSFP transceiver is fully compliant to compact Small Form-Factor Pluggable (CSFP) MSA option 2 and SFF-8472.

Specifications

Product Series	Fiber CSFP Transceiver	Part Number	GCS-B3412-B3412-20C
Form Factor	CSFP	Type	2x BiDi LX
Data Rate	1.25G/1.25G	Lane Count	2x (Tx/Rx)
Distance	20km	Connector	2x LC-Simplex
TX Wavelength	2x 1310nm	RX Wavelength	2x 1490nm
Power Supply Voltage	+3.3V (typical)	Power Consumption	≤ 1.3W
Transmitter Type/Lane	FP	Receiver Type/Lane	PIN
Transmitter Output Power	-9 ~ -3dBm	Receiver Sensitivity	< -22dBm
Extinction Ratio	> 9dB	Input Overload	> -3dBm
Power Budget (dB)	13dB	Digital Diagnostic	Support
Environment	Operating: 0 to 70°C	Warranty	3-year
Environment	Storage: -40°C to 85°C	Unit Weight	25gram
Compliance	1000Base BX20 IEEE802.3ah, CE, Class 1 FDA and IEC60825-1 Laser Safety Compliant, CSFP MSA option 2, IEEE 802.3z, RoHS, SFF-8472

Features

2 Fiber dual Bi-directional CSFP transceivers
Support 1.25Gb/s bi-directional data links
1310nm FP laser and PIN photodetector
Up to 20km on 9/125µm SMF
Compliant with CSFP MSA Option 2 and SFF-8472
IEEE802.3ah 100BASE-BX, 1000BASE-BX, SONET OC-24, Compliant
Digital Diagnostic Monitoring
Compatible with RoHS
Duplex LC Connector
+3.3V single power supply
Operating case temperature:0 to +70°C (Commercial)/ -10 ~ +80°C (Extended)/ -40°C to +85°C (Industrial)
Class 1 Laser International Safety Standard IEC 60825 Compliant

Application

Gigabit Ethernet (1.25 Gbps)
1G Fiber Channel (1.0625 Gbps)

Electrical and Optical Characteristics

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Power Consumption				1.32	W
Supply Current	Icc			400	mA
Transmitter
Single-ended Input Voltage Tolerance		-0.3		4.0	V
Differential Input Voltage Swing	Vin,pp	200		2400	mVpp
Differential Input Impedance	Zin	90	100	110	Ohm
Transmit Disable Assert Time				5	us
Transmit Disable Voltage	Vdis	Vcc-1.3		Vcc	V
Transmit Enable Voltage	Ven	Vee-0.3		0.8	V
Receiver
Differential Output Voltage Swing	Vout,pp	500		900	mVpp
Differential Output Impedance	Zout	90	100	110	Ohm
Data output rise/fall time	Tr/Tf		100		ps	20% to 80%
LOS Assert Voltage	VlosH	Vcc-1.3		Vcc	V
LOS De-assert Voltage	VlosL	Vee-0.3		0.8	V

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Transmitter
Center Wavelength	λC	1260	1310	1360	nm
Spectrum Bandwidth(RMS)	σ			3.5	nm
Side Mode Suppression Ratio	SMSR	30			dB
Average Optical Power	PAVG	-9		-3	dBm	1
Optical Extinction Ratio	ER	9			dB
Transmitter OFF Output Power	POff			-45	dBm
Transmitter Eye Mask		Compliant with 802.3z(class 1 laser safety)				2
Receiver
Center Wavelength	λC	1470	1490	1510	nm
Receiver Sensitivity (Average Power)	Sen.			-20	dBm	3
Input Saturation Power (overload)	Psat	-3			dBm
LOS Assert	LOSA	-36			dB	4
LOS De-assert	LOSD			-21	dBm	4
LOS Hysteresis	LOSH	0.5	2	6	dBm

Notes:

1. Measure at 2^7-1 NRZ PRBS pattern

2. Transmitter eye mask definition.

3. Measured with Light source 1310nm, ER=9dB; BER =<10^-12 @PRBS=2^7-1 NRZ When LOS de-asserted, the RX data+/- output is High-level (fixed).

Pin Assignment and Pin Description

Diagram of host board connector block pin numbers and names

PIN	Name	Name/Description	Notes
1	VEE	Transmitter Ground	VEE may be internally connected within the SFP module
2	TX FAULT	Transmitter Fault.	TX Fault is an open collector/drain output, which should be pulled up with a 4.7K– 10K resistor on the host board. Note 1 for more information
3	TX1_Disable	Transmitter Disable of Ch A	Module channel A disables function
4	MOD_DEF2	Two-wires interface Data	2 wire serial ID interface, SDA
5	MOD_DEF1	Two-wires interface Clock	2 wire serial ID interface, SCL
6	TD2-	Inverted Transmit Data Input of Ch B	These are the differential transmitter puts. They are AC-coupled, differential lines with 100 differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board
7	TD2+	Transmit Data Input of Ch B
8	LOS1	Loss of Signal of Ch A	Loss of Signal detected function. Note 2 for more information.
9	RD2+	Received Data Output of Ch B	These are the differential receiver outputs. They are AC coupled 100 differential lines which should be terminated with 100(differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board.
10	RD2-	Inverted Received Data Output of Ch B
11	VEE	Transceiver Ground	VEE may be internally connected within the SFP module.
12	RD1-	Inverted Received Data Output of Ch A	These are the differential receiver outputs. They are AC coupled 100 differential lines which should be terminated with 100(differential) at the user SERDES. The AC coupling is done inside the module and is thus not required on the host board.
13	RD1+	Received Data Output of Ch A
14	LOS2	Loss of Signal of CH B	Loss of Signal detected function. Note 2 for more information.
15	VCCR	Receiver Power	3.3V± 5%. Note 3 for more information
16	VCCT	Transmitter Power	3.3V± 5%. Note 3 for more information
17	TX2_Disable	Transmitter Disable of Ch B	Module channel B disables function
18	TD1+	Transmit Data Input of Ch A	These are the differential transmitter puts. They are AC-coupled differential lines with 100 differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board
19	TD1-	Inverted Transmit Data Input of Ch A
20	VEE	Transceiver Ground	VEE may be internally connected within the SFP module.

Notes:

1. When high, output indicates a laser fault of some kind either in Channel A or Channel B. The Host shall read Channel A/B for details: TX Fault from channel A if bit 2 is set in [A2H:110]; TX Fault from channel B if bit 2 is set in [B2H: 110]. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V.

2. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output will be pulled to < 0.4V. VccT VccR are the power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Maximum supply current is 400Ma@3.3V. Vcc may be internally connected within the SFP transceiver module.

Mechanical Dimensions

Dimensions are in millimeters. All dimensions are ±0.1mm unless otherwise specified. (Unit: mm)

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1.25G Compact SFP CSFP Dual BIDI TX1310nm RX1490nm 20km LC DOM

1.25G Compact SFP CSFP Dual BIDI TX1310nm RX1490nm 20km LC DOM

1.25G Compact SFP CSFP Dual BIDI TX1310nm RX1490nm 20km LC DOM

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1.25G Compact SFP CSFP Dual BIDI TX1310nm RX1490nm 20km LC DOM

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