LPWSLC23-K02C

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Product Detail

Applications

● 400G Ethernet

● Data center network

1. Description

ESWSLC23-K02C is a transceiver module designed for 2 km optical communication applications, and it is compliant with 100G Lambda MSA standard. This module can convert 8-channel 53.125 Gbps electrical data to 4-channel 106.25 Gbps optical signals, and multiplex them into a single channel for 425 Gbps optical transmission. Similarly, it optically de-multiplexes a 425 Gbps input into 4-channel signals, and converts them to 8-channel output electrical data on the receiver side. It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference. The module offers very high functionality and feature integration, accessible via the I2C interface.

Figure 1-1 Transceiver block diagram

2. Pin Descriptions

Figure 2-1 MSA-compliant connector

Pin

Logic

Symbol

Description

Plug sequence

Notes

1

GND

Ground

1B

1

2

CML-I

Tx2n

Transmitter Inverted Data Input

3B

3

CML-I

Tx2p

Transmitter Non-Inverted Data

3B

Pin

Logic

Symbol

Description

Plug sequence

Notes

Input

4

GND

Ground

1B

1

5

CML-I

Tx4n

Transmitter Inverted Data Input

3B

6

CML-I

Tx4p

Transmitter Non-Inverted Data Input

3B

7

GND

Ground

1B

1

8

LVTTL-I

ModSelL

Module Select

3B

9

LVTTL-I

ResetL

Module Reset

3B

10

VccRx

+3.3 V Power Supply Receiver

2B

2

11

LVCMOS-

I/O

SCL

2-wire Serial Interface Clock

3B

12

LVCMOS-

I/O

SDA

2-wire Serial Interface Data

3B

13

GND

Ground

1B

1

14

CML-O

Rx3p

Receiver Non-Inverted Data Output

3B

15

CML-O

Rx3n

Receiver Inverted Data Output

3B

16

GND

Ground

1B

1

17

CML-O

Rx1p

Receiver Non-Inverted Data Output

3B

18

CML-O

Rx1n

Receiver Inverted Data Output

3B

19

GND

Ground

1B

1

20

GND

Ground

1B

1

21

CML-O

Rx2n

Receiver Inverted Data Output

3B

22

CML-O

Rx2p

Receiver Non-Inverted Data Output

3B

23

GND

Ground

1B

1

24

CML-O

Rx4n

Receiver Inverted Data Output

3B

25

CML-O

Rx4p

Receiver Non-Inverted Data Output

3B

26

GND

Ground

1B

1

27

LVTTL-I

ModPrsL

Module Present

3B

28

LVTTL-I

IntL

Interrupt

3B

29

VccTx

+3.3 V Power Supply Transmitter

2B

2

30

Vcc1

+3.3 V Power Supply

2B

2

31

LVTTL-I

InitMode

Initialization Mode; In legacy QSFP applications, the InitMode pad is

3B

Pin

Logic

Symbol

Description

Plug sequence

Notes

called LPMODE

32

GND

Ground

1B

1

33

CML-I

Tx3p

Transmitter Non-Inverted Data Input

3B

34

CML-I

Tx3n

Transmitter Inverted Data Input

3B

35

GND

Ground

1B

1

36

CML-I

Tx1p

Transmitter Non-Inverted Data Input

3B

37

CML-I

Tx1n

Transmitter Inverted Data Input

3B

38

GND

Ground

1B

1

39

GND

Ground

1A

1

40

CML-I

Tx6n

Transmitter Inverted Data Input

3A

41

CML-I

Tx6p

Transmitter Non-Inverted Data Input

3A

42

GND

Ground

1A

1

43

CML-I

Tx8n

Transmitter Inverted Data Input

3A

44

CML-I

Tx8p

Transmitter Non-Inverted Data Input

3A

45

GND

Ground

1A

1

46

Reserved

For future use

3A

3

47

VS1

Module Vendor Specific 1

3A

3

48

VccRx1

+3.3 V Power supply

2A

2

49

VS2

Module Vendor Specific 2

3A

3

50

VS3

Module Vendor Specific 3

3A

3

51

GND

Ground

1A

1

52

CML-O

Rx7p

Receiver Non-Inverted Data Output

3A

53

CML-O

Rx7n

Receiver Inverted Data Output

3A

54

GND

Ground

1A

1

55

CML-O

Rx5p

Receiver Non-Inverted Data Output

3A

56

CML-O

Rx5n

Receiver Inverted Data Output

3A

57

GND

Ground

1A

1

58

GND

Ground

1A

1

59

CML-O

Rx6n

Receiver Inverted Data Output

3A

Pin

Logic

Symbol

Description

Plug sequence

Notes

60

CML-O

Rx6p

Receiver Non-Inverted Data Output

3A

61

GND

Ground

1A

1

62

CML-O

Rx8n

Receiver Inverted Data Output

3A

63

CML-O

Rx8p

Receiver Non-Inverted Data Output

3A

64

GND

Ground

1A

1

65

NC

No Connect

3A

3

66

Reserved

For Future Use

3A

3

67

VccTx1

+3.3 V Power Supply

2A

2

68

Vcc2

+3.3 V Power Supply

2A

2

69

Reserved/(ep ps)

Precision Time Protocol (PTP) Reference Clock Input

3A

3

70

GND

Ground

1A

1

71

CML-I

Tx7p

Transmitter Non-Inverted Data Input

3A

72

CML-I

Tx7n

Transmitter Inverted Data Input

3A

73

GND

Ground

1A

1

74

CML-I

Tx5p

Transmitter Non-Inverted Data Input

3A

75

CML-I

Tx5n

Transmitter Inverted Data Input

3A

76

GND

Ground

1A

1

Note:

1. QSFP-DD uses common ground (GND) for all signals and supply (power). All are common within the QSFP-DD module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal-common ground plane.

2. VccRx, VccRx1, Vcc1, Vcc2, VccTx and VccTx1 shall be applied concurrently. Requirements defined for the host side of the Host Card Edge Connector are listed in the table. VccRx, VccRx1, Vcc1, Vcc2, VccTx and VccTx1 may be internally connected within the module in any combination. The connector Vcc pins are each rated for a maximum current of 1000 mA.

3. All Vendor Specific, Reserved and No Connect pins may be terminated with 50 Ω to ground on the host. Pad 65 (No Connect) shall be left unconnected within the module. Vendor specific and Reserved pads shall have an impedance to GND that is greater than 10 kΩ and less than 100 pF.

4. Plug Sequence specifies the mating sequence of the host connector and module.

3. Absolute Maximum Ratings

It has to be noted that the operation in excess of any individual absolute maximum ratings might cause permanent damage to this module.

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Maximum supply voltage	Vcc	–0.3	3.3	3.6	V
Storage temperature	Ts	–40		85	°C
Relative humidity	RH	0		85	%

4. Operating Environments

Electrical and optical characteristics below are defined under this operating environment, unless otherwise specified.

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Supply voltage	Vcc	3.135	3.3	3.465	V
Case temperature	T	0		70	°C
Data rate accuracy		–100		100	ppm
Link distance		0.5		2000	m	1

Note:

1. G.652 Single-mode optical fiber.

5. Electrical Characteristics

Parameter	Min.	Typ.	Max.	Unit	Notes
Power dissipation			12	W
Supply current			3.63	A
Receiver (module input)
Data rate, each lane	26.5625 ± 100 ppm			GBd
Overload differential voltage pk-pk	900			mV
Common mode voltage	–350		2850	mV

Parameter	Min.	Typ.	Max.	Unit	Notes
Differential termination resistance mismatch			10	%	At 1 MHz
Differential return loss (SDD11)	Equation (16-1)			dB	OIF-CEI- 56G-VSR- PAM4
Common mode to differential mode conversion (SCD11)	Equation (16-2)			dB	OIF-CEI- 56G-VSR- PAM4
Stressed input test	See OIF-CEI-56G-VSR-PAM4 Section 16.3.10.3
Transmitter (module output)
Data rate, each lane	26.5625 ± 100 ppm			GBd
Differential voltage, pk-pk			900	mV
Common mode voltage (Vcm)	–350		2850	mV
Common mode noise, RMS			17.5	mV
Differential termination resistance mismatch			10	%	At 1 MHz
Differential return loss (SDD22)			Equation (16-1)	dB
Common mode to differential mode conversion (SDC22)			Equation (16-3)	dB
Common mode return loss (SCC22)			–2	dB	From 250 MHz to fb GHz
Transition time	9.5			ps
Near-end eye width at 10-6 probability (EW6)	0.265			UI
Near-end eye height at 10-6 probability (EH6)	70			mV
Far-end eye width at 10-6 probability (EW6)	0.20			UI
Far-end eye height at 10-6 probability (EH6)	30			mV
Near-end eye linearity	0.85

6. Optical Characteristics

Parameters	Unit	Min.	Typ.	Max.
Transmitter
Data rate, each Lane	GBd	53.125 ± 100 ppm
Modulation format		PAM4
Line wavelengths	nm	1264.5	1271	1277.5
		1284.5	1291	1297.5
		1304.5	1311	1317.5
		1324.5	1331	1337.5
Total average launch power	dBm			9.5
Average launch power, each lane	dBm	–3.3		3.5
Optical modulation amplitude (OMA), each lane	dBm	–0.2		3.7
Extinction ratio (ER)	dB	3.5
Side-mode suppression ratio (SMSR)	dB	30
Launch power in OMA minus TDECQ, each lane, for ER ≥ 4.5 dB	dB	–1.7
Launch power in OMA minus TDECQ, each lane, for ER < 4.5 dB	dBm	–1.6
Transmitter and dispersion eye closure for PAM4, each Lane (TDECQ)	dB			3.4
Difference in launch power between any two lanes (OMA outer)	dB			4
RIN17.1OMA	dB/Hz			–136
Optical return loss tolerance	dB			17.1
Transmitter reflectance	dB			–26

Parameters	Unit	Min.	Typ.	Max.
Average launch power of OFF transmitter, each Lane	dBm			–20
Receiver
Data rate, each Lane	GBd	53.125 ± 100 ppm
Modulation format		PAM4
Damage threshold, each lane	dBm	4.5
Line wavelengths	nm	1264.5	1271	1277.5
		1284.5	1291	1297.5
		1304.5	1311	1317.5
		1324.5	1331	1337.5
Average receiver power, each lane	dBm	–7.3		3.5
Receiver power, each lane (OMA)	dBm			3.7
Difference in receiver power between any two lanes (OMA)	dB			4.1
Receiver sensitivity (OMA outer) , each lane (max)	dBm	See Note
LOS assert	dBm	–20
LOS deassert	dBm			–8.6
LOS hysteresis	dB	0.5
Receiver reflectance	dB			–26
Conditions of stressed receiver sensitivity
Stressed eye closure for PAM4 (SECQ), lane under test	dB	0.9		3.4
OMA outer of each aggressor lane	dBm		1.5
Long term performance test
BER FLOOR		1E – 6 @ –3.1 ~ 2 dBm

Note:

Measured with conformance test signal for BER = 2.4 x 10 - 4. A compliant receiver shall have stressed receiver sensitivity (OMA outer), each lane values below the mask of Figure 6-1, for SECQ values between 0.9 and 3.4 dB.

Figure 6-1 Stressed receiver sensitivity mask for 400GE-FR4

7. Digital Diagnostic Monitoring Functions

Digital diagnostic management interface (DDMI) is realized by I2C interface in compliance with CMIS 4.0. diagnostic management functions are realized, and the data addresses are listed in the form below.

Performance item	Data address
	Alarm & Warning	Alarm & Warning thresholds	Monitor
Module temperature	Lower page 9	Page2h (128-135)	Lower page (14-15)
Module voltage	Lower page 9	Page2h (136-143)	Lower page (16-17)
Bias current	Page11h (143-146)	Page2h (184-191)	Page11h (170-177)
Transmitter optical power	Page11h (139-142)	Page2h (176-183)	Page11h (154-161)
Receiver optical power	Page11h (149-152)	Page2h (192-199)	Page11h (186-193)

8. Mechanical Specifications

Figure 8-1 OM3660FX102 mechanical dimensions

9. Regulatory Compliance

Feature	Agency	Standard	Performance
Safety	NRTL	UL 62368-1 CAN/CSA C22.2 No. 62368-1 IEC 60825-1 IEC 60825-2	NRTL recognized component for US and CAN
	TUV	EN 62368-1 EN 60825-1 EN 60825-2	TUV certificate
	FDA	U.S. 21 CFR 1040.10 & 1040.11	FDA/CDRH certified with accession number according to Laser Notice 56
Electromagnetic	Radiated	EMC Directive 2014/30/EU	Class B digital device with a minimum –6 dB margin to the

Feature	Agency	Standard	Performance
Compatibility	emissions	EN 55032 CISPR 32 FCC rules 47 CFR Part 15 ICES-003 VCCI-CISPR 32 AS/NZS CISPR 32	limit when tested with a metal enclosure. Final margin may vary depending on system application, good system EMI design practice, ie: suitable metal enclosure and well- bonding, is required to achieve Class B margins at the system level. Tested frequency range: 30 MHz to 40 GHz or 5th harmonic (5 times the highest frequency), whichever is less.
	ESD	EMC Directive 2014/30/EU EN 55035 CISPR 35 IEC/EN 61000-4-2	Withstands discharges of ± 8 kV contact, ±15 kV air.
	Radiated immunity	EMC Directive 2014/30/EU EN 55035 CISPR 35 IEC/EN 61000-4-3	Field strength of 10 V/m from 80 MHz to 6 GHz.
Restriction of Hazardous Substances	RoHS	EU RoHS (2011/65/EU & (EU) 2015/863) & UK RoHS EN IEC 63000:2018 & BS EN IEC 63000:2018

10. ESD Design

Normal ESD precautions are required during the handling of this module. This transceiver is shipped in ESD protective packaging. It should be removed from the packaging and otherwise handled in an ESD protected environment utilizing standard grounded benches, floor mats, and wrist straps.

Parameter	Threshold value	Notes
ESD of high-speed pins	1 kV	Human Body Model
ESD of low-speed pins	2 kV	Human Body Model
Air discharge during operation	15 kV
Direct contact discharges to the case	8 kV

11. Safety Specification Design

Do not look into fiber end faces without eye protection using an optical meter (such as magnifier and microscope) within 100 mm, unless you ensure that the laser output is disabled. When operating an optical meter, observe the operation requirements.

CAUTION–Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

Attention–L'utilisation des commandes ou réglages ou l'exécution des procédures autres que celles spécifiées dans les présentes exigences peuvent être la cause d'une exposition à un rayonnement dangereux.

12. Ordering Information

Part NO.

Bit Rate (Gbps)

Laser (nm)

Distance(km)

Media

DDMI

Connector

Temp（℃）

LPWSLC23-K02C

425

1271;

1291;

1311;

1331

Single-mode fiber

YES

0~70

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LPWSLC23-K02C

1. Description

2. Pin Descriptions

Figure 2-1 MSA-compliant connector

3. Absolute Maximum Ratings

4. Operating Environments

5. Electrical Characteristics

6. Optical Characteristics

7. Digital Diagnostic Monitoring Functions

8. Mechanical Specifications

9. Regulatory Compliance

10. ESD Design

11. Safety Specification Design

12. Ordering Information

SFP Series

WDM Mux Demux

Optical Splitter

Optical Amplifier

Optical Switch

Optical Jumper

Pin	Logic	Symbol	Description	Plug sequence	Notes
1		GND	Ground	1B	1
2	CML-I	Tx2n	Transmitter Inverted Data Input	3B
3	CML-I	Tx2p	Transmitter Non-Inverted Data	3B