Optical Fiber RoHS Compliant 25GB/S SFP+ Bi-Directional Transceiver, 10km Reach

• Usage: Telephone, Computer, Workstation, Server, Mobile phone, Laptop
• Type: Wireless
• Support Network: GSM
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: GFC-OLSBxx2XL-C(I)D10
• Information content: Data
• Certification: CE, ISO, RoHS
• Condition: New
• Delivery Time: 3-7 Days
• Warranty: 3 Years
• Distance: 10km
• Transport Package: Antistatic Bag
• Specification: 25G
• Trademark: GFC
• Origin: Zhejiang China
• HS Code: 8517706000
• Production Capacity: 50K/Month

Product Description

Product Features

• Supports24.3 to 26.5Gb/s bit rates
• Simplex LC Connector
• Hot pluggable SFP+ footprint
• 1270nm DFB transmitter, 1330nm PIN photo-detector
• 1330nm DFB transmitter, 1270nm PIN photo-detector
• Applicable for 10km SMF connection
• Low power consumption, < 1.2 W
• Digital Diagnostic Monitor Interface
• Specifications compliant with SFF 8472
• Electrical interface compliant to SFF-8431
• Operating case temperature: Commerical:0 to 70 °C Industrial:-40 to 85 °C

 

Applications

• 25G Ethernet
• CPRI 10
• Other optical link

Absolute Maximum Ratings
 

Parameter	Symbol	Min.	Max.	Unit	Note
Supply Voltage	Vcc	-0.5	4.0	V
Storage Temperature	TS	-40	85	°C
Relative Humidity	RH	5	95	%

Note: Stress in excess of the maximum absolute ratings can cause permanent damage to the transceiver.


 

General Operating Characteristics

 

Parameter	Symbol	Min.	Typ	Max.	Unit	Note
Data Rate	DR	24.3	25.78	26.5	Gb/s
Supply Voltage	Vcc	3.14	3.3	3.47	V
Supply Current	Icc5			360	mA
Operating Case Temp.	Tc	0		70	°C
	TI	-40		85

Electrical Characteristics (T_OP(C) = 0 to 70 ºC, T_OP(I) =-40 to 85 ºC,V_CC = 3.13 to 3.47 V)
 

Parameter	Symbol	Min.	Typ	Max.	Unit	Note
Transmitter
Differential data input swing	VIN,PP	180		800	mVpp
Transmit Disable Voltage	VD	VCC-1.3		Vcc	V	1
Transmit Enable Voltage	VEN	Vee		Vee+0.8
Input differential impedance	Rin		100		Ω	2
Receiver
Differential data output swing	Vout,pp	300		850	mVpp	2
LOS asserted	VLOS_F	VCC-0.8		Vcc	V	3
LOS de-asserted	VLOS_N	Vee		Vee+0.8	V	3

Notes:

1. Or open circuit.
2. Connected directly to TX data input pins. AC coupled thereafter.
3. Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.

Optical Characteristics (T_OP(C) = 0 to 70 ºC, T_OP(I) =-40 to 85 ºC,V_CC = 3.13 to 3.47 V)
 

Parameter	Symbol	Min.	Typ	Max.	Unit	Note
Transmitter
Operating Wavelength	λ	1260	1270	1280	nm
		1320	1330	1340
Ave. output power (Enabled)	PAVE	-5		2	dBm	1
Side-Mode Suppression Ratio	SMSR	30			dB
Extinction Ratio	ER	3.5			dB
RMS spectral width	Δλ			1	nm
Receiver
Operating Wavelength	λ	1320	1330	1340	nm
		1260	1270	1280
Receiver Sensitivity	PSEN			-13.3	dBm	2
OverLoad	PAVE	0.5			dBm
LOS Assert	Pa	-30			dBm
LOS De-assert	Pd			-14	dBm
LOS Hysteresis	Pd-Pa	0.5			dB

Notes:

1. Class 1 Laser Safety per FDA/CDRH and IEC-825-1 regulations.
2. Measured with a PRBS 231-1 test pattern, @25.78Gb/s, BER@5*10-5 .

Serial Interface for ID and Digital Diagnostic Monitor

The GFC-OLSBxx2XL-C(I)D10 transceivers support the 2-wire serial communication protocol as defined in the SFP28 MSA.

The standard SFP28 serial ID provides access to identification information that describes the transceiver's capabilities, standard interfaces, manufacturer, and other information.

Additionally, this transceiver provide a unique enhanced digital diagnostic monitoring interface, which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags, which alerts end-users when particular operating parameters are outside of a factory set normal range.

The SFP28 MSA defines a 256-byte memory map in EEPROM that is accessible over a 2-wire serial interface at the 8 bit address 1010000X (A0h).The digital diagnostic monitoring interface makes use of the 8 bit address 1010001X (A2h), so the originally defined serial ID memory map remains unchanged.

The operating and diagnostics information is monitored and reported by a Digital Diagnostics Transceiver Controller (DDTC) inside the transceiver, which is accessed through a 2-wire serial interface. When the serial protocol is activated, the serial clock signal (SCL, Mod Def 1) is generated by the host. The positive edge clocks data into the SFP transceiver into those segments of the E2PROM that are not write-protected. The negative edge clocks data from the SFP transceiver. The serial data signal (SDA, Mod Def 2) is bi-directional for serial data transfer. The host uses SDA in conjunction with SCL to mark the start and end of serial protocol activation. The memories are organized as a series of 8-bit data words that can be addressed individually or sequentially.
 

Typical Interface Circuit

 

Package Dimensions