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10Gb/s SFP+ CWDM 40km Transceiver

LA-OT-10G-CW23-40

SFP+ package with LC connector, DML CWDM DFB Laser and PIN-TIA photodetector, Up to 40Km transmission on SMF.

Overview

Specifications

Connectivity Solutions

Models

Resources

Features

● SFP+ package with LC connector
● DML CWDM DFB Laser and PIN-TIA photodetector
● Up to 40Km transmission on SMF
● Up to 11.3Gbps Data Links
● +3.3V single power supply
● Power dissipation<1.5W
● 2-wire interface with integrated Digital Diagnostic monitoring
● Low EMI and excellent ESD protection
● laser safety standard IEC-60825 compliant
● Compatible with RoHS
● Compliant with SFF-8472 SFP+ MSA
● Compliant to SFP+ SFF-8431 and SFF-8432

Absolute Maximum Ratings

Parameter

Symbol

Minimum

Maximum

Units

Storage Temperature

Tst

-40

+85

°C

Supply Voltage

Vcc

-0.3

+3.5

V

Operating Relative 

Humidity

RH

5

95

%


Operation Environment

Parameter

Symbol

Min

Typical

Max

Units

Supply Voltage

Vcc

3.15

3.3

3.45

V

Operating Case 

Temperature

Tc

0


+70

°C

Power Dissipation




1.5

W

Data Rate



10.3125


Gbps


Optical Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Units

Transmitter Section

Center Wavelength

lo

1270


1370

nm

Spectral Width(-20dB)

Dl



1

nm

Average Output Power

Po

0


+5

dBm

Extinction Ratio

Er

3.5



dB

Side-Mode 

Suppression Ratio

SMSR

30



dB

Total jitter

Tj

IEEE 802.3ae


Receiver Section

Center Wavelength

lo

1270


1610

nm

Receiver Sensitivity

Rsen



-15

dBm

Receiver Overload

Rov

0



dBm

Return Loss


12



dB

LOS Assert

LOSA

-28



dBm

LOS Dessert

LOSD



-16

dBm

LOS Hysteresis


0.5


4



Electrical Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Transmitter Section

Input Differential 

Impendence

Zin

90

100

110

Ohm

Data Input Swing 

Differential

Vin

180


700

mV

TX Disable

Disable


2.0


Vcc

V

Enable


-0.3


0.8

V

TX Fault

Assert


2.4


Vcc

V

Deassert


-0.3


0.8

V

Receiver Section

Output differential 

impendence

Zout

80

100

120

Ohm

Data Input Swing 

Differential

Vout

300


850

mV

Rx_LOS

Assert


2.0


Vcc

V

Deassert


-0.3


0.4

V


Diagnostics

Parameter

Range

Accuracy

Unit

Calibration

Temperature

0 ~ 70

±5

ºC

Internal

Voltage

3.15 ~ 3.45

±0.1

V

Internal

Bias Current

10 ~ 80

±2

mA

Internal

Tx Power

-2 ~ +5

±2

dBm

Internal

Rx Power

-16 ~ -3

±3

dBm

Internal


Pin Description

Pin Description of 10Gb/s SFP+ CWDM 40km Transceiver

Pins

Name

Description

NOTE

1

VeeT

Transmitter Ground


2

Tx Fault

Transmitter Fault Indication

1

3

Tx Disable

Transmitter Disable

2

4

MOD DEF2

Module Definition 2

3

5

MOD DEF1

Module Definition 1

3

6

MOD DEF0

Module Definition 0

3

7

RS0

Not Connected


8

LOS

Loss of Signal

4

9

RS1

Not Connected


10

VeeR

Receiver Ground


11

VeeR

Receiver Ground


12

RD-

Inv. Received Data Output

5

13

RD+

IReceived Data Output

5

14

VeeR

Receiver Ground


15

VccR

Receiver Power


16

VccT

Transmitter Power


17

VeeT

Transmitter Ground


18

TD+

Transmit Data Input

6

19

TD-

Inv. Transmit Data Input

6

20

VeeT

Transmitter Ground



Notes:

1. TX Fault is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates a laser fault of some kind. In the low state, the output will be pulled to less than 0.8V.

2. TX Disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7k~10kΩ resistor. Its states are:

Low (0~0.8V): Transmitter on

(>0.8V, <2.0V): Undefined

High (2.0~3.3V): Transmitter Disabled

Open: Transmitter Disabled

3. MOD-DEF 0,1,2 is the module definition pins. They should be pulled up with a 4.7k~10kΩ resistor on the host board. The pull-up voltage shall be VccT or VccR.

MOD-DEF 0 is grounded by the module to indicate that the module is present

MOD-DEF 1 is the clock line of two wire serial interface for serial ID

MOD-DEF 2 is the data line of two wire serial interface for serial ID

4. LOS is an open collector output, which should be pulled up with a 4.7k~10kΩ resistor on the host board to a voltage between 2.0V and Vcc+0.3V. Logic 0 indicates normal operation; logic 1 indicates loss of signal. In the low state, the output will be pulled to less than 0.8V.

5. These are the differential receiver output. They are internally AC-coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES.

6. These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module.


Recommended Application Circuit

Recommended Application Circuit of 10Gb/s SFP+ CWDM 40km Transceiver


Outline Drawing (mm)

Outline Drawing (mm) of 10Gb/s SFP+ CWDM 40km Transceiver


Application 

● Ethernet

● Telecom

● Fiber Channel

Date Version Description Download
2025-03-17 Datasheet_10G CWDM SFP+ 1270nm~1370nm 40km_LA-OT-10GCW23-40_V2.Y
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