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JHA-QSFP28-4SFP28-100G-AOC spec
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JHA-QSFP28-4SFP28-100G-AOC spec

l Support4x25GBASE-SR applicationl ComplianttoQSFP28MSASFF-8636andSFP28MSASFF-8431andSFF-8472l Multirateofupto25.78125Gbpsper lanel Transmissiondistanceupto50ml+3.3Vsinglepower supplyl Lowpowerconsumptionl ULcertificationcables (optional)l Operating tempCommercial:0°Cto+70 °Cl RoHS compliantApplicationsl 4x25Gbe-SRl Otheroptical links
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Support 4x25GBASE-SR application

Compliant to QSFP28 MSA SFF-8636 and SFP28 MSA SFF-8431 and SFF- 8472

Multi rate of up to 25.78125Gbps per lane

Transmission distance up to 50m

l+3.3V single power supply

Low power consumption

UL certification cables (optional)

Operating  temp Commercial: 0°C to +70 °C

RoHS  compliant

Applications

4x25Gbe-SR

Other optical links

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Support 4x25GBASE-SR application

Compliant to QSFP28 MSA SFF-8636 and SFP28 MSA SFF-8431 and SFF- 8472

Multi rate of up to 25.78125Gbps per lane

Transmission distance up to 50m

l+3.3V single power supply

Low power consumption

UL certification cables (optional)

Operating  temp Commercial: 0°C to +70 °C

RoHS  compliant

Applications

4x25Gbe-SR

Other optical links

Absolute Maximum Ratings

 

Table1- Absolute Maximum Ratings

 

Parameter

Symbol

Min.

Typical

Max.

Unit

Notes

Supply Voltage

Vcc3

-0.5

-

+3.6

V

 

Storage Temperature

Ts

-10

-

+70

°C

 

Operating Humidity

RH

+5

-

+85

%

1

Note: 1 No condensation

 

Recommended Operating Conditions

 

Table 2- Recommended operating Conditions

 

Parameter

Symbol

Min.

Typical

Max.

Unit

Notes

Operating  Temperature

TC

0

-

+70

°C

 

Power Supply Voltage

Vcc

3.14

3.3

3.47

V

 

Power Dissipation per QSFP28

Pd

-

-

2.5

W

 

Power Dissipation per SFP28

Pd

-

-

1.0

W

1

Bit Rate  per Lane

BR

10.3125

25.78125

-

Gbps

 

Note: 1Per terminal

 

Electrical Characteristics

 

Table 3- Electrical Characteristics for QSFP28

 

Parameter

Symbol

Min.

Typ.

Max.

Units

Notes

 

ModSelL

Module Select

VOL

0

-

0.8

V

 

Module Unselect

VOH

2.5

-

VCC

V

 

 

LPMode

Low Power Mode

VIL

0

-

0.8

V

 

Normal Operation

VIH

2.5

-

VCC+0.3

V

 

 

ResetL

Reset

VIL

0

-

0.8

V

 

Normal Operation

VIH

2.5

-

VCC+0.3

V

 

ModPrsL

Normal Operation

VOL

0

-

0.4

V

 

 

IntL

Interrupt

VOL

0

-

0.4

V

 

Normal Operation

VoH

2.4

-

VCC

V

 

Electrical Transmitter Characteristics

Differential Date Input Swing

Vin,P-P

200

-

1600

mV

 

Output Differential Impedance

ZIN

90

100

110

Ω

 

Electrical Receiver Characteristics

Differential Data Output Swing

Vout

200

-

800

mVPP

 

Bit Error Rate

BER

 

 

E-12

 

1

Input Differential Impedance

ZD

90

100

110

Ω

 

Note: 1PRBS2^31-1@25.78125Gbps

 

Table 4- Electrical Characteristics for SFP28

 

Parameter

Symbol

Min.

Typ.

Max.

Units

Notes

Electrical Transmitter Characteristics

Differential Data Input Swing

Vin,P-P

200

-

1600

mVPP

 

Input Differential Impedance

ZIN

90

100

110

Ω

 

 

Tx_Fault

Normal Operation

VOL

0

-

0.8

V

 

Transmitter Fault

VOH

2.0

-

VCC

V

 

 

Tx_Disable

Normal Operation

VIL

0

-

0.8

V

 

Laser Disable

VIH

2.0

-

VCC+0.3

V

 

Electrical Receiver Characteristics

Differential Date Output

Vout

400

-

800

mV

 

Bit Error Rate

BER

-

-

E-12

-

 

Output Differential Impedance

ZD

90

100

110

Ω

 

 

Rx_LOS

Normal Operation

VOL

0

-

0.8

V

 

Lose Signal

VoH

2.0

-

VCC

V

 

                                                                                                                   Figure 1, Pin View for QSFP28

 

Table 5- Pin Function Definitions for QSFP28

 

Pin

Symbol

Name/Description

Notes

1

GND

Ground

1

2

Tx2n

Transmitter Inverted Data Input

 

3

Tx2p

Transmitter Non-Inverted Data Input

 

4

GND

Ground

1

5

Tx4n

Transmitter Inverted Data Input

 

6

Tx4p

Transmitter Non-Inverted Data Input

 

7

GND

Ground

1

8

ModSelL

Module Select

 

9

ResetL

Module Reset

 

10

Vcc Rx

+3.3V Power Supply Receiver

 

11

SCL

2-wire serial interface clock

 

12

SDA

2-wire serial interface data

 

13

GND

Ground

1

14

Rx3p

Receiver Non-Inverted Data Output

 

15

Rx3n

Receiver Inverted Data Output

 

16

GND

Ground

1

17

Rx1p

Receiver Non-Inverted Data Output

 

18

Rx1n

Receiver Inverted Data Output

 

19

GND

Ground

1

20

GND

Ground

1

21

Rx2n

Receiver Inverted Data Output

 

22

Rx2p

Receiver Non-Inverted Data Output

 

23

GND

Ground

1

24

Rx4n

Receiver Inverted Data Output

 

Pin

Symbol

Name/Description

Notes

25

Rx4p

Receiver Non-Inverted Data Output

 

26

GND

Ground

1

27

ModPrsL

Module Present

 

28

IntL

Interrupt

 

29

Vcc Tx

+3.3V Power supply transmitter

 

30

Vcc1

+3.3V Power supply

 

31

LPMode

Low Power Mode

 

32

GND

Ground

1

33

Tx3p

Transmitter Non-Inverted Data Input

 

34

Tx3n

Transmitter Inverted Data Input

 

35

GND

Ground

1

36

Tx1p

Transmitter Non-Inverted Data Input

 

37

Tx1n

Transmitter Inverted Data Input

 

38

GND

Ground

1

 

Note: 1. Circuit ground is internally isolated from chassis ground.

              Figure 2, Pin View for SFP28

Table 6-Pin Function Definitions

 

Pin

Symbol

Name/Description

Notes

1

VEET

Module Transmitter Ground

1

2

TX_FAULT

Module Transmitter Fault

2

3

TX_DISABLE

Transmitter Disable; Turns off transmitter laser output

3

4

SDA

2-Wire Serial Interface Data Line (MOD-DEF2)

 

5

SCL

2-Wire Serial Interface Clock (MOD-DEF1)

 

6

MOD_ABS

Module Absent, connected to VEET or VEER in the module

2

7

RS0

Rate Select 0, optionally controls SFP+ module receiver

4

8

RX_LOS

Receiver Loss of Signal Indication (In FC designated as Rx_LOS and in Ethernet designated as NOT Signal Detect)

2

9

RS1

Rate Select 1, optionally controls SFP+ module transmitter

4

Pin

Symbol

Name/Description

Notes

10

VEER

Module Receiver Ground

1

11

VEER

Module Receiver Ground

1

12

RD-

Receiver Inverted Data Output

 

13

RD+

Receiver Non-Inverted Data Output

 

14

VEER

Module Receiver Ground

1

15

VCCR

Module Receiver 3.3 V Supply

 

16

VCCT

Module Transmitter 3.3 V Supply

 

17

VEET

Module Transmitter Ground

1

18

TD+

Transmitter Non-Inverted Data Input

 

19

TD-

Transmitter Inverted Data Input

 

20

VEET

Module Transmitter Ground

1

Note:

1. The module ground pins are isolated from the module case.

2. The pins shall be pulled up with 4.7K-10Kohms to a voltage between 3.14V and 3.46V on host board.

3. The pin is pulled up to VCCT with a 4.7K-10KΩ resistor in the module.

 

4. See SFF-8472 Rev12.2 Table 10-2.

 

Recommended Circuit

 

                                                                                  Figure 3, Recommended Interface Circuit for QSFP28

                  Figure 4, Recommended Host Board Power Supply Circuit for SFP28

          Figure 5, Recommended Interface Circuit for SFP28

Monitoring Specification

                       Figure 6, Memory Map for QSFP28

                                Figure 7, Memory Map for SFP28

Mechanical

 

Unit mm

Figure 8, Mechanical Diagram

 

Table 7- Cable Length

 

Cable Length  L1Unit: m

TolerantUnit: cm

1.0

+5/-0

1.0<L4.5

+15/-0

4.5<L14.5

+30/-0

14.5

+2%/-0

Table 8- Breakout Cable Nominal Length

 

Total Length

L1 (Unit: m)

Breakout Point Measured from SFP

L2(Unit: m)

1

0.7

2

1.4

3

2

5

3

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