2.5g DWDM SFP Optical Transceiver Optic SFP Module

Product Description

2.5Gbps DWDM SFP Optical Transceiver, 40km Reach

TAKFLY 2.5Gbps CWDM SFP Optical transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1XX0nm DFB laser and the PIN .The module data link up to 40KM in 9/125um single mode fiber.

The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss of signal (LOS) output is provided to indicate the loss of an input optical 
signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access.

Features

• Data-rate of 2.67Gbps operation
• 18 CWDM DFB wavelengths laser and PIN or PIN photodetector for 40km transmis Compliant with SFP MSA and SFF-8472 with duplex LC receptacle
• Digital Diagnostic Monitoring:
• Internal Calibration or External Calibration Compatible with RoHS
• +3.3V single power supply
• Operating case temperature: Standard : 0 to +70°

Applications

• Switch to Switch Interface
• Gigabit Ethernet
• Switched Backplane Applications
• Router/Server Interface
• Other Optical Links

Recommended Operating Conditions

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Case Operating Temperature	Tcase	0		70	ºC
Power Supply Voltage	VCC	3.13	3.3	3.47	V
Power Supply Current	ICC			300	mA
Power Supply Noise Rejection				100	mVp-p	100Hz to 1MHz
Data Rate			2670		Mbps	TX Rate/RX Rate
Transmission Distance				40	KM
Coupled Fiber	Single mode fiber					9/125um SMF

Specification of Transmitter

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Average Output Power	POUT	-5		2	dBm	Note (1)
Extinction Ratio	ER	9			dB
Center Wavelength	λC	(1XX0)-λ	1XX0	(1XX0)+λ	nm	DFB Laser Note (2)
Side Mode Suppression Ratio	SMSR	30			dB
Spectrum Bandwidth(-20dB)	σ			1	nm
Transmitter OFF Output Power	POff			-45	dBm
Differential Line Input Impedance	RIN	90	100	110	Ohm
Output Eye Mask	Compliant with G.957 (class 1 laser safety)					Note (3)

Notes

1) Measure at 2^23-1 NRZ PRBS pattern
2) "XX" is: 27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59 and 61; "λ" is 7.5
3) Transmitter eye mask definition
       
Specification of Receiver
 

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Input Optical Wavelength	λIN	1270		1610	nm	PIN
Receiver Sensitivity	PIN			-18	dBm	Note (1)
Input Saturation Power (Overload)	PSAT	-3			dBm
Los Of Signal Assert	PA	-40			dBm
Los Of Signal De-assert	PD			-24	dBm	Note (2)
LOS Hysteresis	PA-PD	0.5	2	6	dB

Notes

1. The optical power is launched into SMF.
2. PECL input, internally AC-coupled and terminated.
3. Measured with a PRBS 223-1 test pattern @2488Mbps, BER ≤1×10-12APD for 1270nm~1450nm
4. AC-coupled internally.

Electrical Interface Characteristics
 

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Transmitter
Total Supply Current	ICC			A	mA	Note (1)
Transmitter Disable Input-High	VDISH	2		Vcc+0.3	V
Transmitter Disable Input-Low	VDISL	0		0.8	V
Transmitter Fault Input-High	VTxFH	2		Vcc+0.3	V
Transmitter Fault Input-Low	VTxFL	0		0.8	V
Receiver
Total Supply Current	ICC			B	mA	Note (1)
LOSS Output Voltage-High	VLOSH	2		Vcc+0.3	V	LVTTL
LOSS Output Voltage-Low	VLOSL	0		0.8	V

Note
1) A (TX) + B (RX) = 300mA (Not include termination circuit)

Pin Definitions
 

Pin	Symbol	Name/Description	NOTE
1	VEET	Transmitter Ground   (Common with Receiver Ground)	1
2	TFAULT	Transmitter Fault.
3	TDIS	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	4
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

Notes

1. Circuit ground is internally isolated from chassis ground.
2. Laser output disabled on TDIS>2.0V or open, enabled on TDIS<0.8V.
3. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V.MOD_DEF (0) pulls line low to indicate module is plugged in.
4. This is an optional input used to control the receiver bandwidth for compatibility with multiple data rates (most likely Fiber Channel 1x and 2x Rates).If implemented, the input will be internally pulled down with > 30kΩ resistor. The input states are:
   1. Low (0 - 0.8V): Reduced Bandwidth
   2. (>0.8, < 2.0V): Undefined
   3. High (2.0 - 3.465V): Full Bandwidth
   4. Open: Reduced Bandwidth
5. LOS is open collector output should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.

International Exhibitions:


Company:

Takfly Communications Co., Ltd,founded in 2000, which is a Hi-Tech enterprise having its own brand and specializing in R&D, manufacture and sales of fiber optical communications equipment. It controls the quality constantly and strictly in order to give the best products to the users.

  The main products of TAKFLY including MPO/MTP patch cord, CWDM/DWDM, fiber optic cable, patch cord, pigtail, adapter, PLC splitter, fast connector, attenuator, media converter, POE switch, optic splice closure, optic terminal box, ODF etc.

  Based on the conceptes" High Quality, Reasonable Price, Excellect Service and Mutual Benefit", TAKFLY is becoming a famous brand all over the world. Warmly welcome to be our business partner and let us help you to win more markets!

FQA :

1. Q: Are you a manufacturer?
A: yes, we are a manufacturer , FTTH solution and data center total solution provider in Shenzhen, China, established in 2000.

2. Q: What's your MOQ?
A: MOQ can be 1 pcs, but the price is not competitive.More quantity,the price will be more competitive.

3. Q: Can you quote FOB price?
A: yes. We can delivery by air, DHL, TNT, UPC, FEDEX, etc. For big quantity we will deliver it by sea.

We can quote price with freight and lead time for you, after you let us know detailed requirements with quantity.

We have competitive shipping forwarders. For more solutions, you can feel free to contact us.

4. Q: How is your quality?
A: Our production is according to IEC, Europe standard. CE, ISO, RoHS, CPR, and ANATEL certified.

All the products are 100% test before delivery.

5. Q: What's your lead time?
A: It depends on the quantity and products. For fiber optic patch cord, the lead time can be 2 -3 working days within 5000 pcs. We keep the regular products in stock. Also, we can deal with urgent orders.

6. Q: What's your warranty?
A: Depends one different product, we have1 years warranty for patch cord since delivery, but only responsible for non-artificial damage. For artificial damage, we can repair it for you for free, freight will be paid by your side.

7. Q: What's your packing?
A: International export standard package.If you need to print your logo on the packing, please let us know before we quote.

8. Q: Can you offer OEM/ODM?
A: yes, we can. all products accept OEM /ODM. we can sign the Confidentiality Agreement.

9. Q: Can I have a sample?
A: It depends on which products, Free sample provide under 10 usd. Freight will be paid by buyer before delivery.

10. Q: How can I order?
A:1.send mail or inquiries with product name, specification, and quantity  to us . Provide your receive address if you need FOB,CIF,CFR price.

2.We will offer our quotation with lead time.

3.After the quotation confirmed, we will send a PI with our bank account.

4.Production will be arranged after the payment received.

5.Confirm the consignee with you before we deliver it.

6.The tracking number will be provided after the delivery.

11. Q: What your payment term?
A: T/T, Western Union, Paypal, MoneyGram at once. For big amounts, can be 50% deposit in advance, 50% balance paid before delivery.