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ZK-OSFP-800G-SR8

ZK-OSFP-800G-SR8

Product Descriptions

800GBASE 2xSR4/SR8 OSFP 850nm 50m Dual MPO-12/APC DDM MMF Optical Transceiver Module

Product Description

ZK-OSFP-800G-SR8

800Gbps OSFP SR8 850nm 50m MMF Transceiver

 

Features

n Supports 850Gbps

n Single 3.3V Power Supply

n Power dissipation < 15W

n 8x53.125GBd (PAM4) Electrical Interface

n Dual MPO-12 Connector APC

n Case Temperature Range: 0°C to 70°C

n VCSEL Transmitter

n PIN and TIA Array on the Receiver Side

n I2C Interface with Integrated Digital Diagnostic Monitoring

n Safety Certification: TUV/UL/FDA*1

n RoHS Compliant

n OSFP MSA Compliant


Applications

n 1x800GbE

n 2x400GbE

n 4x200GbE

n 8x100GbE

 

Description

OSFP 800G SR8 transceiver module is designed for use in 800 Gigabit Ethernet links over 30m OM3 or 50m OM4 fiber. The module has 8 independent electrical input/output channels operating up to 106.25Gbps per channel. This transceiver consists of two transmitter/receiver units, with each operating on 850nm wavelength. The transmitter path of the module incorporates a PAM4 re-timer ASIC with two 4-channel modulator drivers and 8 modulated lasers. On the receiver path, it consists of 8 photodiodes and two 4-channel TIAs, along with the PAM4 re-timer. The electrical interface of the module is compliant with the 800GAUI-8 interface as defined by IEEE 802.3ck, and compliant with OSFP MSA.
 1.png

Absolute Maximum Ratings

Parameter

Symbol

Min

Typ.

Max

Unit

Storage Temperature             

Ts

-40


85

°C

Power Supply Voltage

Vcc

-0.5

3.3

3.6

V

Relative Humidity (non-Condensing)

RH

5


85

%

 

Recommended Operating Conditions

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Operating Case Temperature

Tc

0


70

°C


Power Supply Voltage

Vcc

3.135

3.3

3.465

V


Power Supply Noise




25

mVpp

1

Receiver Differential Data Output Load



100


Ohm


Fiber Length (OM3)




30

m


Fiber Length (OM4)




50

m


Note：

1. Power Supply Noise is defined as the peak-to-peak noise amplitude over the frequency range at the host supply side of the  recommended  power  supply  filter  with  the  module  and  recommended  filter  in  place.  Voltage  levels  including peak-to-peak noise are limited to the recommended operating range of the associated power supply. See Figure 7 for recommended power supply filter.

 

Optical Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Transmitter

Signaling Rate, each Lane

DR


53.125±100ppm


GBd


Modulation Format



PAM4




Center Wavelength

λ

842


948

nm


RMS Spectral Width

△λrms



0.65

nm

1

Average Launch Power, each Lane

Pavg

-4.6


4

dBm


Outer Optical Modulation Amplitude (OMAouter), each Lane (max)

POMA  



3.5

dBm


Outer Optical Modulation Amplitude(OMAouter), each Lane (min) for max (TECQ, TDECQ) ≤1.8dB

POMA  

-2.6



dBm


Outer Optical Modulation Amplitude(OMAouter), each Lane (min) for 1.8<max (TECQ, TDECQ) ≤4.4dB

POMA

-4.4+max

(TECQ,TDECQ)



dBm


Transmitter and Dispersion Eye Closure for PAM4(TDECQ), each Lane

TDECQ



4.4

dB


Overshoot/Undershoot   




29

%


Transmitter Power Excursion, each Lane




2.3

dBm


Extinction Ratio, each Lane   

ER

2.5



dB


Transmitter Transition Time, each Lane




17

ps


Average Launch Power of OFF Transmitter, each Lane

Poff 



-30

dBm


RIN12OMA

RIN12OMA



-132

dB/Hz


Optical Return Loss Tolerance

ORL



14

dB


Encircled Flux

EF

≥86% at 19 mm

≤30% at 4.5 mm

2

Receiver

Signaling Rate, each Lane

DR


53.125±

100ppm


GBd


Modulation Format



PAM4




Center Wavelength

λ


TBD


nm


Center Wavelength

λ

842


948

nm


Damage Threshold


5



dBm


Average Receiver Power, each Lane


-6.3


4

dBm


Receiver Power, each Lane (OMAouter)




3.5

dBm


Receiver Reflectance




-15

dB


Receiver Sensitivity (OMAouter) for TECQ≤1.8dB

SEN



-4.4

dBm


Receiver Sensitivity (OMAouter) for 1.8<TECQ≤4.4dB

SEN



-6.2+TECQ

dBm


LOS Assert

LOSA

-15



dBm


LOS De-Assert

LOSD



-9

dBm


Stressed Receiver Sensitivity (OMAouter), each Lane




-1.8

dBm


Conditions of Stressed Receiver Sensitivity test:

Stressed Eye Closure for PAM4 (SECQ), Lane under Test



4.4


dB

3

OMAouter of each Aggressor Lane



3.5


dBm


Note：

1. RMS spectral width is the standard deviation of the spectrum.

2. If measured into type A1a.2 or type A1a.3, or A1a.4, 50um fiber, in accordance with IEC61280-1-4.

3. These test conditions are for measuring stressed receiver sensitivity. They are not characteristics of the receiver.

 

Electrical Interface Characteristics

Parameter

Symbol

Min.

Typ.

Max.

Unit

Note

Receiver

Signaling Rate per Lane

TP1


53.125±

100ppm


GBd


Differential peak-peak Input Voltage Tolerance

TP1a

750



mV

1

AC Common-Mode RMS Voltage Tolerance

TP1a

25



mV


Differential-Mode to Common-Mode Return Loss,RLcd

 

TP1

Equation (120G-2)



 

dB

2

Effective Return Loss, ERL

TP1

8.5



dB


Differential Termination Mismatch

TP1



10

%


Single-Ended Voltage Tolerance Range

TP1a

-0.4


3.3

V


DC Common-Mode Output Voltage

TP1

-350


2850

mV

3

Module Stressed Input Tolerance

TP1a





4

Pattern Generator Transition Time (Target)



9


ps


Applied peak-peak Sinusoidal Jitter



Table

162-16



5

Eye Height (Target)



10


mV


Vertical Eye Closure


12


12.5

dB


Crosstalk Differential peak-peak Voltage



845


mV





8.5


Ps


Transmitter

Signaling Rate per Lane  

TP4


53.125±

100ppm


GBd


AC Common-Mode Output Voltage (RMS)

TP4



25

mV


Differential Peak-to-Peak Output Voltage(Short Mode)

TP4



600

mV


Differential Peak-to-Peak Output Voltage(Long Mode)

TP4



845

mV


Eye Height 

TP4

15



mV


Vertical Eye Closure, VEC

TP4



12

dB


Common to Differential Mode  Conversion Return Loss, RLdc

TP4

Equation (120G-1)




6

Common to Differential Mode  Conversion Return Loss, RLdc

TP4

8.5



dB


Differential Termination Mismatch

TP4



10

%


Transition Time (20% ~80%)

TP4

8.5



ps


DC Common Mode Voltage Tolerance

TP4

-350


2850

mV

7

Notes:

1. With the exception to 120E.3.1.2 that the pattern is PRBS31Q or scrambled idle.

2. Equation (120G-2) refers to IEEE 803ck.

3. DC common mode voltage generated by the host. Specification includes effects of ground offset voltage.1

4. Meets BER specified in 120G.1.1 of IEEE 802.3ck.

5. Table 162-16 refers to IEEE 802.3ck.

6. Equation (120G-1) refers to IEEE 802.3ck.

7. DC common mode voltage generated by the host. Specification includes effects of ground offset voltage.

 
Pin Description
image.png 

Pin

Logic

Symbol

Description

Plug Sequence

Note

1


 

GND

Ground

1

1

2

CML-I

Tx2p

Transmitter Data Non-Inverted

3


3

CML-I

Tx2n

Transmitter Data Inverted

3


4


GND

Ground

1

1

5

CML-I

Tx4p

Transmitter Data Non-Inverted

3


6

CML-I

Tx4n

Transmitter Data Inverted

3


7


GND

Ground

1

1

8

CML-I

Tx6p

Transmitter Data Non-Inverted

3


9

CML-I

Tx6n

Transmitter Data Inverted

3


10


GND

Ground

1

1

11

CML-I

Tx8p

Transmitter Data Non-Inverted

3


12

CML-I

Tx8n

Transmitter Data Inverted

3


13


GND

Ground

1

1

14

LVCMOS-I/O

SCL

2-wire Serial interface clock

3

2

15


VCC

+3.3V Power

2


16


VCC

+3.3V Power

2


17

Multi-Level

LPWn/PRSn

Low-Power Mode/Module Present

3


18


GND

Ground

1

1

19

CML-O

Rx7n

Receiver Data Inverted

3


20

CML-O

Rx7p

Receiver Data Non-Inverted

3


21


GND

Ground

1

1

22

CML-O

Rx5n

Receiver Data Inverted

3


23

CML-O

Rx5p

Receiver Data Non-Inverted

3


24


GND

Ground

1

1

25

CML-O

Rx3n

Receiver Data Inverted

3


26

CML-O

Rx3p

Receiver Data Non-Inverted

3


27


GND

Ground

1

1

28

CML-O

Rx1n

Receiver Data Inverted

3


29

CML-O

Rx1p

Receiver Data Non-Inverted

3


30


GND

Ground

1

1

31


GND

Ground

1

1

32

CML-O

Rx2p

Receiver Data Non-Inverted

3


33

CML-O

Rx2n

Receiver Data Inverted

3


34


GND

Ground

1

1

35

CML-O

Rx4p

Receiver Data Non-Inverted

3


36

CML-O

Rx4n

Receiver Data Inverted

3


37


GND

Ground

1

1

38

CML-O

Rx6p

Receiver Data Non-Inverted

3


39

CML-O

Rx6n

Receiver Data Inverted

3


40


GND

Ground

1

1

41

CML-O

Rx8p

Receiver Data Non-Inverted

3


42

CML-O

Rx8n

Receiver Data Inverted

3


43


GND

Ground

1

1

44

Multi-Level

INT/RSTn

Module input/Module Reset

3


45


VCC

+3.3V Power

2


46


VCC

+3.3V Power

2


47

LVCMOS-I/O

SCL

2-wire Serial interface Data

3

2

48


GND

Ground

1

1

49

CML-I

Tx7n

Transmitter Data Inverted

3


50

CML-I

Tx7p

Transmitter Data Non-Inverted

3


51


GND

Ground

1

1

52

CML-I

Tx5n

Transmitter Data Inverted

3


53

CML-I

Tx5p

Transmitter Data Non-Inverted

3


54


GND

Ground

1

1

55

CML-I

Tx3n

Transmitter Data Inverted

3


56

CML-I

Tx3p

Transmitter Data Non-Inverted

3


57


GND

Ground

1

1

58

CML-I

Tx1n

Transmitter Data Inverted

3


59

CML-I

Tx1p

Transmitter Data Non-Inverted

3


60


GND

Ground

1

1

Notes:

1. OSFP uses common ground (GND) for all signals and supply (power). All are common within the OSFP module and all module voltages are referenced to this potential unless otherwise noted.

2. Open-Drain with pull up resistor on Host.

 

Mechanical Dimensions
image.png 

 Important Notice

Performance figures, data and any illustrative material  provided  in this  data sheet  are typical  and  must  be specifically confirmed in writing by Zkosemi before they become applicable to any particular order or contract. In accordance with the Zkosemi policy of continuous improvement specifications may change without notice. The publication of information in this data sheet does not imply freedom from patent or other protective rights of Zkosemi or others. Further details are available from any Zkosemi sales representative.