Generic Compatible QSFP28 100GBASE-LR4 10km

Parameter

Symbol

Min

Max

Unit

Note

Storage Temperature Tst

Tst

40

+85

degC

Relative Humidity

(non-condensation)

RH

5

90

%

Operating Case Temperature

Topc

-5

+75

degC

Supply Voltage

VCC

-0.5

3.6

V

Parameter

Symbol

Typical

Unit

Supply Voltage

Vcc

3.1

3.3

3.5

V

Case Operating Temperature

Tca

5

25

75

ºC

Data Rate Per Lane

fd

25.78125

Gbps

Humidity

Rh

5

85

%

Parameter

Symbol

Min

Typ

Max

Unit

Supply Voltage

Vcc

3.135

3.465

V

Supply Current

Icc

1.12

A

Module total power

P

3.5

W

1

Transmitter

Signaling rate per lane

25.78125 ± 100 ppm

GBd

Differential data input swing per

lane

Vin,pp

900

mV

Differential input return loss (min)

RLd(f)

9.5–0.37f,    0.01≤f<8

4.75–7.4log10(f/14),    8

≤f<19

dB

Differential to common modeinput

return loss (min)

RLdc(f)

22-20(f/25.78), 0.01≤f<12.89

15-6(f/25.78), 12.89≤f<19

dB

Differential termination mismatch

10

%

Stressed input parameters

Eye width

0.46

UI

Applied pk-pk sinusoidal jitter

Per IEEE 802.3bm Table

88-13

Eye height

95

mV

DC common mode voltage

-350

2850

mV

Receiver

Signaling rate per lane

25.78125 ± 100 ppm

GBd

Differential data output swing

Vout,pp

100

400

mVpp

2

300

600

400

800

600

1200

Eye width

0.57

UI

Vertical eye closure

5.5

dB

Differential output return loss (min)

RLd(f)

9.5–0.37f,    0.01≤f<8

4.75–7.4log10(f/14),    8

≤f<19

dB

Common to differential mode conversion return loss (min)

RLdc(f

)

22-20(f/25.78),

0.01≤f<12.89

15-6(f/25.78), 12.89≤f<19

dB

Differential termination mismatch

10

%

Transition time, 20% to 80%

tr tf

12

ps

Parameter

Symbol

Min

Typ

Max

Unit

Transmitter

Signaling Speed per Lane

25.78125 ± 100 ppm

Gb/s

1

Lane center wavelengths (range)

1294.53 – 1296.59

nm

1299.02 – 1301.09

1303.54 – 1305.63

1308.09 – 1310.19

Total Average Launch Power

POUT

10.5

dBm

Transmit OMA per Lane

TxOMA

-1.3

4.5

dBm

Average Launch Power per Lane

TXPx

-4.3

4.5

dBm

2,7

Optical Extinction Ratio

ER

4

dB

Sidemode Suppression ratio

SSRmin

30

dB

Average launch power ofOFF

transmitter, per lane

-30

dBm

Relative Intensity Noise

RIN

-130

dB/Hz

Optical Return Loss Tolerance

20

dB

Transmitter Reflectance

-12

dB

Transmitter eye maskdefinition

{X1, X2, X3, Y1, Y2, Y3}

{0.25, 0.4, 0.45, 0.25,0.28,

0.4}

3

Receiver

Signaling Speed per Lane

25.78125 ± 100 ppm

GBd

4

Lane center wavelengths (range)

1294.53 – 1296.59

1299.02 – 1301.09

1303.54 – 1305.63

1308.09 – 1310.19

nm

Receive Power (OMA) per Lane

RxOMA

4.5

dBm

Average Receive Power per Lane

RXPx

-10.6

4.5

dBm

5,7

Receiver Sensitivity (OMA)per

Lane

Rxsens

-8.6

dBm

Return Loss

RL

-26

dB

Stressed      Receiver      Sensitivity

(OMA) per Lane

SRS

-6.8

dBm

6

Receive electrical 3 dBupper

cutoff frequency, per lane

31

GHz

LOS De-Assert

LOSD

-11.6

dBm

LOS Assert

LOSA

-24

-13.6

dBm

LOS Hysteresis

1.5

dBm

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

+3.3 V 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

21

Rx2n

Receiver Inverted Data Output

22

Rx2p

Receiver Non-Inverted Data Output

23

GND

Ground

1

24

Rx4n

Receiver Inverted Data Output

25

Rx4p

Receiver Non-Inverted Data Output

26

GND

Ground

1

27

ModPrsL

Module Present

28

IntL

Interrupt

29

Vcc Tx

+3.3 V Power supply transmitter

30

Vcc1

+3.3 V 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