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25Gb/s SFP28 850nm Duplex 300m Transceiver

25Gb/s SFP28 850nm Duplex 300m Transceiver,The SFP28 transceivers are high performance, cost effective modules supporting data rate of 25.78125Gbps and Maximum link length of 70m on OM3 MMF or 300m on OM4 MMF.

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Description

25Gb/s SFP28 850nm Duplex 300m Transceiver

The transceiver consists of three sections: a 850nm Oxide VCSEL 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.

Products Features

Supports 25.78125Gb/s serial optical interface

VCSEL laser transmitter and PIN photo-detector

Maximum link length of 70m on OM3 MMF or 300m on OM4 MMF

Hot-pluggable SFP28 form factort

SFP28 MSA package with Duplex LC connector

Power consumption less than 1.0 W

Metal enclosure, for lower EMI

RoHS compliant and lead-free

Single +3.3V powersupply

Internal CDR on both transmitter and receiver channel

Electrical interface compliant to SFF-8431

Built-in digital diagnostic functions

Case operating temperature

Commercial: 0°C to +70°C

Industrial: -40°C to +85°C

Applications

25GBASE-SR 25G Ethernet

25.78125 Gb/s single lane 100GE SR4

Other optical links

Pin Description.

Pin	Symbol	Name/Description	NOTE
1	VEET	Module transmitter ground	1
2	Fault	Module transmitter Fault	2
3	Disable	Transmitter Disable; Turns off transmitter laser output	3
4	SDL	2 wire serial interface data input/output (SDA)	4
5	SCL	2 wire serial interface clock input (SCL)	4
6	MOD-ABS	Module Absent, connect to VeeR or VeeT in the module	2
7	RS0	Rate select0: module inputs and are pulled low to VeeT with >30 kΩ resistorsin the module.
8	LOS	Receiver Loss of Signal Indication
9	RS1	Rate select1: module inputs and are pulled low to VeeT with >30 kΩ resistorsin the module.
10	VeeR	Module receiver ground	1
11	VeeR	Module receiver ground	1
12	RD-	Receiver inverted data out put
13	RD+	Receiver non-inverted data out put
14	VeeR	Module receiver ground	1
15	VccR	Module receiver 3.3V supply
16	VccT	Module transmitter 3.3V supply
17	VeeT	Module transmitter ground	1
18	TD+	Transmitter non-inverted data out put
19	TD-	Transmitter inverted data out put
20	VeeT	Module transmitter ground	1

Notes:

1. The module ground pins shall be isolated from the module case.

2. This pin is an open collector/drain output pin and shall be pulled up with 4.7K-10Kohms to Host_Vcc on the host board.

3. This pin shall be pulled up with 4.7K-10Kohms to VccT in the module.

4. This pin is an open collector/drain output pin and shall be pulled up with 4.7K-10Kohms to Host_Vcc on the host board.

Quality Certification

Hot Tags : 25Gb/s SFP 25g SFP Module 25G sfp transceiver module 25G SFP Fiber SFP Module SFP transceiver module

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