1.25g Bi-Directional 1310nm/1550nm LC Connector 20km SFP Optical Transceiver Module

• Customization: Available
• Type: Fiber Transceiver
• Certification: CE, ISO, RoHS
• Model NO.: TK-B3524-3LCD20
• Wavelength: 1310/1550nm
• Distance: 20km
• Connector: LC
• Transport Package: Carton Box
• Specification: 1.25G
• Trademark: OEM
• Origin: China
• HS Code: 8517706000
• Production Capacity: 10000 Piece/Week

Product Description

Product Description

The SFP-BIDI transceivers are high-performance, cost-effective modules supporting dual data rate of 1.25Gbps/1.0625Gbps and 20KM transmission distance with SMF. 

 

Features

1. Dual data rate of 1.25Gbps/1.063Gbps operation
2. 1310nm FP laser and PIN photodetector for 20KM transmission
3. Compliant with SFP MSA and SFF-8472 with simplex LC receptacle

4. Digital Diagnostic Monitoring: Internal Calibration or External Calibration

5. Compatible with SONET OC-24-LR-1

6. Compatible with RoHS

7. +3.3V single power supply
 

Product Parameters

 

Optical characteristics-Transmitter
 

Parameter	Symbol	Min.	Typ	Max.	Unit	Note
Operating Wavelength	λC	1260	1310	1360	nm
Ave. output power (Enabled)	Po	-9			dBm	1
Extinction Ratio	ER	10			dB	1
RMS spectral width	Δλ			4	nm
Rise/Fall time (20%~80%)	Tr/Tf			0.26	ps	2
Output Eye Mask	Telcordia GR-253-CORE and ITU-T G.957 compatible

 

1. Measure at 2^23-1 NRZ PRBS pattern

2. Transmitter eye mask definition

Optical characteristics-Receiver

Parameter	Symbol	Min.	Typ	Max.	Unit	Note
Operating Wavelength		1530		1570	nm
Sensitivity	Psen			-22	dBm	1
Min. overload	Pimax	-3			dBm
LOS Assert	Pa	-36			dBm
LOS De-assert	Pd			-24	dBm	2
LOS Hysteresis	Pd-Pa	0.5		6	dB

1. Measured with Light source 1310nm (1550nm), ER=10dB; BER =<10^-12 @PRBS=2^23-1 NRZ.
2. When LOS de-asserted, the RX data+/- output is signal output.
 

Electrical Input / Output Characteristics

Transmitter

Parameter		Symbol	Min.	Typ	Max.	Unit	Note
Diff. input voltage swing			120		820	mVpp	1
Tx Disable input	H	VIH	2.0		Vcc+0.3	V
	L	VIL	0		0.8
Tx Fault output	H	VOH	2.0		Vcc+0.3	V	2
	L	VOL	0		0.8
Input Diff. Impedance		Zin		100		Ω

Receiver

Parameter		Symbol	Min.	Typ	Max.	Unit	Note
Diff. output voltage swing			340	650	800	mVpp	3
Rx LOS Output	H	VOH	2.0		Vcc+0.3	V
	L	VOL	0		0.8

1. TD+/- are internally AC coupled with 100Ω differential termination inside the module.
2. Tx Fault and Rx LOS are open collector outputs, which should be pulled up with 4.7k to 10kΩ resistors on the host board. Pull up voltage between 2.0V and Vcc+0.3V.

3. RD+/- outputs are internally AC coupled, and should be terminated with 100Ω (differential) at the user SERDES.