40G 1310nm 10KM QSFP+
40G, 1310nm, 10KM,  LR4, QSFP+

LX498xCDx is a 40Gb/s QSFP+ to 4x 10G SFP+ , hot-pluggable active optical cable for Infiniband and Ethernet data transmission. It provides parallel interconnects: 4 transmitting / 4 receiving data lanes and supports distance up to 100 meters. LX498xCDx is designed to meet the requirements of high speed, high density and low power consumption for applications in today’s data centers.

Overview

LX498xCDx is a 40Gb/s QSFP+ to 4x 10G SFP+ , hot-pluggable active optical cable for Infiniband and Ethernet data transmission. It provides parallel interconnects: 4 transmitting / 4 receiving data lanes and supports distance up to 100 meters.

LX498xCDx is designed to meet the requirements of high speed, high density and low power consumption for applications in today’s data centers.

Features

- Compliant to standard SFF-8436 for QSFP+ and standard SFF-8431 for SFP+

- High speed / high density: support up to

- 4X10 Gb/s bi-directional operation

- Reliable VCSEL and PIN photonic devices

- I2C standard management interface

- Excellent high speed signal integrity

- Operating temperature Options

- (Commercial) 0 to +70


Optical Characteristics

Table 1. Transmitter Optical Characteristics

Parameter

Symbol

Minimum

Typical

Maximum

Unit

Notes

Reference Differential Input

Impedance

Zd

-

100

-

Ω

1

Optical Return Loss Tolerance

12

dB

Differential Data Input Swing

Vin_pp

180

-

1200

mV

-

Differential Data Input Threshold

50

mV

2

Notes:

1. AC coupled inside AOC module.

2. Input swing to trigger TX-squelch.



Table 2. Receiver Optical Characteristics

Parameter

Symbol

Minimum

Typical

Maximum

Unit

Notes

Reference Differential Input

Impedance

Zd

-

100

-

Ω

1

Differential Data Output Swing

Vout_pp

0

-

800

mV

Pre-emphasis Pulse Amplitude

Percentage

-

0

-

-

%

2

-

10

-

-

%

-

20

-

-

%

-

40

-

-

%

Pre-emphasis Pulse Duration

-

-

30

-

ps

Signal Speed

-

-

4*10.3

-

Gb/s

-

Differential Data Output Swing

-

150

-

850

mV

-

Differential Data Output Swing

When Squelched

-

-

-

50

mV

-

Rise / Fall Time (20% ~80%)

-

24

-

-

ps

-


Notes:

1. AC coupled inside AOC module.

2. User selectable. Percentage is theratio of pre-emphasis amplitude to output swing. Users could

change by writing to page3 address 237, default value is “10”


Table 3. Ordering Information


Part Number

Reach

Temp

RoHS

LX4981CDR

1m

0 ~ 70

Compliant

LX4982CDR

2m

0 ~ 70

Compliant

LX4983CDR

3m

0 ~ 70

Compliant

LX4984CDR

5m

0 ~ 70

Compliant

LX4984CDL

7m

0 ~ 70

Compliant

LX4985CDR

10m

0 ~ 70

Compliant

LX4985CDL

15m

0 ~ 70

Compliant

LX4986CDR

20m

0 ~ 70

Compliant

LX4987CDR

30m

0 ~ 70

Compliant

LX4988CDR

50m

0 ~ 70

Compliant

LX4989CDR

100m

0 ~ 70

Compliant

Applications

- 10G/40G Ethernet

- Proprietary high speed, high density data

- High performance computing, server and data storage.


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