25Gbps SFP28 Transceiver Single Mode 10KM SFP+ Dual LC Port CE RoHS With DDM

Price Negotiable

Price: Negotiable

MOQ: 1pc

Delivery Time: 3~7 working days

Brand: Olycom

Product Description

Olycom SFP28 25G Singlemode Fiber Transceiver

Product Features

Supports up to 25.78Gbps bit rates
Hot-pluggable SFP+ footprint
CWDM DFB laser and PIN photodiode, Up to 10km for SMF transmission
Compliant with SFP+ MSA and SFF-8472 with duplex LC receptacle
Compatible with RoHS
Single +3.3V power supply
Real Time Digital Diagnostic Monitoring
Operating case temperature: 0 to +70°C

Description

The SFP28 transceivers are high performance, cost effective modules supporting data rate of 25.78Gbps and 10km transmission distance with SMF.
The transceiver consists of three sections: a DFB laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.
The transceivers are compatible with SFP Multi-Source Agreement and SFF-8472 digital diagnostics functions.

Application

25GBASE-LR

Optical and Electrical Characteristics

Parameter		Symbol		Min	Typical	Max	Unit	Notes
Transmitter
Centre Wavelength			λc	λc-6.5	λc	λc+6.5	nm
Spectral Width(-20dB)			Δλ			1	nm
Side-Mode Suppression Ratio			SMSR	30	-		dB
Average Output Power			Pout	0		6	dBm	1
Extinction Ratio			ER	3.5			dB
Data Input Swing Differential			VIN	180		850	mV	2
Input Differential Impedance			ZIN	90	100	110	Ω
TX Disable	Disable			2.0		Vcc	V
TX Disable	Enable			0		0.8	V
TX Fault	Fault			2.0		Vcc	V
TX Fault	Normal			0		0.8	V
Receiver
Centre Wavelength			λc	1260		1620	nm
Receiver Sensitivity						-13.3	dBm	3
Receiver Overload						2	dBm	3
LOS De-Assert			LOSD			-15	dBm
LOS Assert			LOSA	-30			dBm
LOS Hysteresis				0.5			dB
Data Output Swing Differential			Vout	300		900	mV	4
LOS			High	2.0		Vcc	V
LOS			Low			0.8	V

Digital Diagnostic Memory Map

The transceivers provide serial ID memory contents and diagnostic information about the present operating conditions by the 2-wire serial interface (SCL, SDA).

The diagnostic information with internal calibration or external calibration all are implemented, including received power monitoring, transmitted power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring.

The digital diagnostic memory map specific data field defines as following.

Pin Description

Pin	Signal Name	Description	Plug Seq.	Notes
1	VEET	Transmitter Ground	1
2	TX FAULT	Transmitter Fault Indication	3	Note 1
3	TX DISABLE	Transmitter Disable	3	Note 2
4	SDA	SDA Serial Data Signal	3
5	SCL	SCL Serial Clock Signal	3
6	MOD_ABS	Module Absent. Grounded within the module	3
7	RS0	Not Connected	3
8	LOS	Loss of Signal	3	Note 3
9	RS1	Not Connected	3
10	VEER	Receiver ground	1
11	VEER	Receiver ground	1
12	RD-	Inv. Received Data Out	3	Note 4
13	RD+	Received Data Out	3	Note 4
14	VEER	Receiver ground	1
15	VCCR	Receiver Power Supply	2
16	VCCT	Transmitter Power Supply	2
17	VEET	Transmitter Ground	1
18	TD+	Transmit Data In	3	Note 5
19	TD-	Inv. Transmit Data In	3	Note 5
20	VEET	Transmitter Ground	1