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WST-QS28-eSR4-C

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100-Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G-eSR4)

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8. All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 8 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C Recommended Host Board Power Supply Circuit

9. All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 9 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C Recommended Interface Circuit

10. All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 10 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C Mechanical Design Diagram Unit: mm

11. All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 11 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C Memory Map The memory map is structured as a single address and multiple page approaches, according to the QSFP 28 SFF - 86 36 MSA specification as shown in the below. For more detailed description of this memory map or lower pages, please see our Memory Map document with flexible customization settings.

7. All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 7 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C Pin Logic Symbol Description Plug Sequence Notes 19 GND Ground 1 20 GND Ground 1 21 CML - O Rx2n Receiver Inverted Data Output 3 22 CML - O Rx2p Receiver Non - Inverted Data Output 3 23 GND Ground 1 24 CML - O Rx4n Receiver Inverted Data Output 3 25 CML - O Rx4p Receiver Non - Inverted Data Output 3 26 GND Ground 1 27 LVTTL - O ModPrsL Module Present 3 28 LVTTL - O IntL Interrupt 3 29 Vcc Tx +3.3V Power supply transmitter 2 30 Vcc1 +3.3V Power supply 2 31 LVTTL - I LPMode Low Power Mode 3 32 GND Ground 1 33 CML - I Tx3p Transmitter Non - Inverted Data Input 3 34 CML - I Tx3n Transmitter Inverted Data Input 3 35 GND Ground 1 36 CML - I Tx1p Transmitter Non - Inverted Data Input 3 37 CML - I Tx1n Transmitter Inverted Data Input 3 38 GND Ground 1

3. All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 3 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C 3. (Eq.2) where f is the frequency in GHz RLdc is the CAUI - 4 Chip - to - module input differential to common mode input return loss 4. The module stressed input tolerance is measured using the procedure defined in 83E.3.4.1.1, IEEE802.3bm. Module stressed input parameters include a. Eye width of 0.46 UI b. Applied pk - pk sinusoidal jitter is per Table 88 - 13 per IEEE802.3bm c. Eye height of 95 mV Parameter Min Typical Max Unit Note CAUI - 4 Module Electrical Output Characteristics (TP4) Signaling R ate per Lane 25.78125 Gbps 1 AC Common - Mode Output Voltage (RMS) 17.5 mV Differential Output Voltage 900 mV Eye Width 0.57 UI Eye Height, Differential 228 mV Vertical Eye Closure 5.5 dB Differential Output Return Loss See Eq. 1 2 C ommon to Differential Mode Conversion Return Loss See Eq. 2 3 Differential termination mismatch 10 % Transition Time (20% to 80%) 12 ps DC Common Voltage - 350 2850 mV Notes: 1. Signaling rate tolerance is within +/ - 100 ppm. 2. (Eq.1) where f is the frequency in GHz RLd is the CAUI - 4 Chip - to - module input differential return loss 3. (Eq.2)

1. Data Sheet All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 1 of 12 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WS T - QS28 - e SR4 - C Abs o lute Maximum Ratings Not necessarily applied together. Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied. Parameter Min Max Unit Note Storage Temperature - 40 85 °C 3.3V Power Supply Voltage - 0.5 3.6 V Data Input Voltage - Single Ended - 0.5 Vcc+0.5 Control Input Voltage - 0.5 3.6 V 1 Relative Humidity 5 85 % Rx Optical Damage Threshold / Lane 3.4 dBm Notes: 1. Non - condensing. Features:  Compliant with 100G Ethernet IEEE 802.3bm 100GBASE - SR4 standards  Extend the max. link length to 300m via OM4 (3 times than standard)  Compliant to SFF - 8665 (QSFP28 Solution) Revision 1.8  Low power consumption: Max. 2.5W (typ. 1.8W)  Hot pluggable electrical interface  0 to 70°C case t emperature operating range  RoHS - 6 Compliant (lead - free) Applications:  10 0GBASE - S R4 Ethernet links  InfiniBand EDR, FDR, & QDR  HPC Interconnects  Proprietary Interconnections

5. All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 5 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C Parameter Symbol Min Typical Max Unit Note Receiver Optical Characteristics Center wavelength, each lane λ 840 860 nm Damage Threshold 3.4 dBm Average power at receiver input, each lane - 10.3 2.4 dBm 1 Receive Power, each lane (OMA) 3 dBm Receiver Reflectance - 12 dB Stressed receiver sensitivity in OMA - 5.2 dBm Conditions of stressed receiver s ensitivity test: Stressed eye closure (SEC) 4.3 dB 2 Stressed eye J2 Jitter 0.39 UI 2 Stressed eye J4 Jitter, 0.53 UI 2 OMA of each aggressor lane 3 dBm 2 Stressed receiver eye mask definition (X1, X2, X3, Y1, Y2, Y3)= (0.28, 0.5, 0 .5, 0.33, 0.33, 0.4} 3 Notes: 1. Average receive power, each lane (min) is informative and not the principal indicator of signal strength. A received power below this value cannot be compliant; however, a value above this does not ensure compliance. 2. T DP value and dependent parameters are subject to confirmation. 3. Hit ratio 5 × 10 – 5 hits per sample

4. All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 4 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C where f is the frequency in GHz RLdc is the CAUI - 4 Chip - to - modu le input differential to common mode input return loss Optical Characteristics Parameter Symbol Min Typical Max Unit Note Transmitter Optical Characteristics Center Wavelength λ 840 860 nm Spectral Width – RMS Δλ 0.6 nm Average Launch Optical Power, each lane LOP - 8.4 2.4 dBm Optical Modulation Amplitude, each lane OMA - 6.4 3 dBm Launch power in OMA minus TDEC – 7.3 dBm 1 Transmitter and dispersion eye closure (TDEC), each lane TDEC 4.3 dB 1 Average launch power of OFF transmitter, each lane - 30 dBm Extinction ratio ER 2 dB Optical return loss tolerance 12 dB Encircled Flux ≥ 86% @ 19um, ≤ 30% at 4.5um 1 Transmitter eye mask definition (X1, X2, X3, Y1, Y2, Y3)= (0.3, 0.38, 0.45, 0.35, 0.4 1, 0.5*) 2 Notes: 1. Designed target and belonging to TDP for further confirmation . 2. Hit ratio 1.5 × 10 – 3 hits per sample . Y3 of mask definition is set to 0.5 per IEEE802.3bm 100G - SR4, which is subject to change to allow a specially reshaped eye for 300m linkage.

12. Page 12 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C Orderi n g I n f o rmation Part No Specification Package Data rate per Lane Laser Optical Power Detector Max. Receive stress s ensitiv ity (OMA) Temp Reach Other Application code WST - QS28 - eSR4 - C QSFP 25.78125 Gb p s each Channel 2x4ch 850nm VCSEL - 6 .4 ~ + 3 each Channel PIN - 5.2 dBm each Channel 0~70 o C 300m OM4 DDM RoHS 1 00G Ethernet Modification History Revi sion Date Description Originator Review Approved V 1 21 - Nov - 20 1 7 New Issue Ivy Chen Wayne Liao Wayne Liao All specification data are accurate on the date of publication for product comp arisons and ordering information. WaveSp litter Technologies, Inc. reserves the right to change specifications without notice. U.S. Branch 2080 Rancho Higuera Ct. Fremont, CA 9 45 3 9, USA Tel: 510 - 651 - 7800 Fax: 510 - 651 - 7822 Taipei Headquarters 16F - 5, N o. 75, Sec. 1, Xintai 5th Rd., Xizhi Dist. , New Taipei C ity 221 01 , Taiwan Tel: +886 - 2 - 2 698 - 7208 Fax: +886 - 2 - 2 698 - 7210 ShenZhen Branch 610#, 6F, No.204 Building, 2nd Industrial zone Nanyou, Nanshan district, Shenzhen, Guangdong China 518054 Tel: +86 - 755 - 86265980 Fax: +86 - 755 - 26642741

2. All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 2 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C Re co mmended O perating Co nditi o ns Para meter Min Typical Max Unit Note Case Operating Temperature 0 40 70 °C Power Supply Voltage 3.135 3.3 3.465 V Date Rate per Channel 25.78125 Gbps Bit Error Ratio 10 - 12 Control Input Voltage High 2 Vcc+0.3 V Control Input Voltage Low - 0.3 0. 8 V Two Wire Serial (TWS) Interface Clock Rate 100 400 kHz Differential Data Input / Output Load 100 Ohms Fiber Length: 4700 MHz·km 50/125μm MMF (OM4) 300 m E lectrical C haracteristics Parameter Min Typical Max Unit Note Transceiver Electri cal Characteristics TRx Power Consumption 1.8 2.5 W TRx Power - on Initialization Time 2000 ms CAUI - 4 Module Electrical Input Characteristics (TP1) Signaling Rate per Lane 25.78125 Gbps 1 Differential pk - pk input voltage tolerance 900 mV Diff erential Input Return Loss See Eq. 1 2 Differential to Common - mode Input Return Loss See Eq. 2 3 Differential termination mismatch 10 % Module stressed input test See Eq. 3 4 Single Ended Input Voltage Tolerance - 0.4 3.3 V DC common mode volta ge - 350 2850 mV Notes: 1. Signaling rate tolerance is within +/ - 100 ppm. 2. (Eq.1) where f is the frequency in GHz RLd is the CAUI - 4 Chip - to - module input differential return loss

6. All contents are Copyright © 1996 - 20 17 Wavesplitter Technologies, Inc. All rights reserved. Preliminary and Proprietary www.wavesplitter.com Page 6 of 12 Document Number: 95 - 0178 - V1.0 100 - Gbps QSFP28 Optical Transceiver Module with Extended Reach (100G - eSR4) WST - QS28 - eSR4 - C QSFP28 Module Pad Assignments and Descriptions Pin Logic Symbol Description Plug Sequence Notes 1 GND Ground 1 2 CML - I Tx2n Transmitter Inve rted Data Input 3 3 CML - I Tx2p Transmitter Non - Inverted Data Input 3 4 GND Ground 1 5 CML - I Tx4n Transmitter Inverted Data Input 3 6 CML - I Tx4p Transmitter Non - Inverted Data Input 3 7 GND Ground 1 8 LVTTL - I ModSelL Module Select 3 9 LVTTL - I ResetL Module Reset 3 10 Vcc Rx +3.3V Power Supply Receiver 2 11 LVCMOS - I/O SCL 2 - wire serial interface clock 3 12 LVCMOS - I/O SDA 2 - wire serial interface data 3 13 GND Ground 1 14 CML - O Rx3p Receiver Non - Inverted Data Output 3 15 CML - O Rx3n Receiver Inverted Data Output 3 16 GND Ground 1 17 CML - O Rx1p Receiver Non - Inverted Data Output 3 18 CML - O Rx1n Receiver Inverted Data Output 3

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