QSFP28 100G CWDM4 2K

QSFP28 100G CWDM4 2K

The QSFP28 100G-CWDM4-2km module is a highly integrated 4x28G transceiver focused on reach, bandwidth, density and cost for high port-count 100G systems, and client-side 100G interfaces. It is compliant with the 100G 4WDM-10 MSA, which is based on the CWDM4 MSA version 1.1. It is interoperable with CWDM4 transceivers over a 2 km reach.

Features of QSFP28 100G CWDM4 2k

Reach: 2 km via SMF

Link budget assumes the use of KR4 FEC by the host

Uncooled CWDM DFB lasers, directly modulated

Electrical interface: retimed CAUI-4 per 100G Ethernet IEEE 802.3bm Annex 83E

User controllable Transmit Input Equalization and Receiver Output Amplitude

MSA-compliant performance monitoring via I2C interface

Fiber connector: SMF LC duplex connector

Hot-pluggable

0–70°C operating temp

Power dissipation < 3.5W

RoHS6 compliant (lead-free)

Applications of QSFP28 100G CWDM4 2k

100G CWDM4 Ethernet

InfiniBand 4x EDR

Specifications of QSFP28 100G CWDM4 2k

Optical Transmitter PerformanceOptical Receiver PerformanceRecommended Operating Environment

Parameter		Symbol	Min	Typical	Max	Unit
Center Wavelength	Ch0	λ0		-		nm
	Ch1	λ1		-		nm
	Ch2	λ2		-		nm
	Ch3	λ3				nm
Bit Rate per Channel		B				Gb/s
Side Mode Suppression Ratio		SMSR	30	-	-	dB
Average launch power, each lane		-	-6.5	-		dBm
Optical Modulation Amplitude (each lane)		OMA	-4.0	-		dBm
Launch power in OMA minus TDP, each lane		OMA-TDP	-5.0	-	-	dBm
Transmission & dispersion penalty, each lane		TDP	-	-		dB
RIN20 OMA		-	-	-	-130	dB/Hz
Transmitter Reflectance		-	-	-	-12	dB
Extinction Ratio		ER		-		dB
Transmitter eye mask definition {X1, X2, X3, Y1, Y2, Y3}		{0.31, 0.4, 0.45, 0.34, 0.38, 0.4} CWDM4 MSA Technical Specifications Rev 1.1
Total average launch power		-	-	-		dBm
Average launch power of OFF transmitter, each lane		-	-	-	-30	dBm
Optical return loss tolerance		-	-	-	20	dB

Pin Descriptions of QSFP28 100G CWDM4 2k

Pin	Symbol	Name/Description
1	GND	Ground
2	Tx2n	Transmitter Inverted Data Input
3	Tx2p	Transmitter Non-Inverted Data Input
4	GND	Ground
5	Tx4n	Transmitter Inverted Data Input
6	Tx4p	Transmitter Non-Inverted Data Input
7	GND	Ground
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
14	Rx3p	Receiver Non-Inverted Data Output
15	Rx3n	Receiver Inverted Data Output
16	GND	Ground
17	Rx1p	Receiver Non-Inverted Data Output
18	Rx1n	Receiver Inverted Data Output
19	GND	Ground
20	GND	Ground
21	Rx2n	Receiver Inverted Data Output
22	Rx2p	Receiver Non-Inverted Data Output
23	GND	Ground
24	Rx4n	Receiver Inverted Data Output
25	Rx4p	Receiver Non-Inverted Data Output
26	GND	Ground
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
33	Tx3p	Transmitter Non-Inverted Data Input
34	Tx3n	Transmitter Inverted Data Input
35	GND	Ground
36	Tx1p	Transmitter Non-Inverted Data Input
37	Tx1n	Transmitter Inverted Data Input
38	GND	Ground

Important Notice of QSFP28 100G CWDM4 2k

Performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by T&S before they become applicable to any particular order or contract. In accordance with the T&S 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 T&S or others. Further details are available from any T&S sales representative.

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