100Gbps 2km LC QSFP28 CWDM4 Optical Transceiver QSFP-100G-CWDM4

Plexda 100G QSFP28 CWDM4 integrates four transmitters and receivers into one module. The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331nm as members of the CWDM wavelength grid defined in ITU-T G.694.2. In the transmitter side, the four lanes of optical data channels are optically multiplexed by the integrated optical multiplexer. In the receive side, the four lanes of optical data channels are optically de-multiplexed by the integrated optical de-multiplexer. Each data channels is recovered by a PIN photo-detector and trans-impedance amplifier, retimed. The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP28 Multi-Source Agreement (MSA) and compliant to CWDM4 MSA. Host FEC is required to support up to 2km fiber transmission.

Recommended Operating Conditions

Parameter	Symbol	Min	Typical	Max	Unit
Operating Case Temperature	Tc	0		70	℃
Power Supply Voltage	Vcc	3.13	3.3	3.47 V	V
Supply Current	Icc			1.12	A
Module total power	P			3.5	W
Each Channel Data Rate	BR		25.78125		Gbps
SMF per G.652	L max			2 km

Note1.We guarantee that the shell temperature meet the 0~70℃, environment temperature may be lower than 70℃ when module operating.

100GBASE-CWDM4 Operation

Optical Transmitter Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Signaling rate per lane		25.78125 ± 100 ppm			GBd
Lane center wavelengths(range)		1264.5	1271	1277.5	nm
		1284.5	1291	1297.5
		304.5	1311	1317.5
		1324.5	1331	1337.5
Total Average Launch Power	Pout			10.5	dBm
Average Launch Power per Lane	TXPx	-6.5		2.5	dBm
Extinction Ratio	ER	3.5			dB
Sidemode Suppression ratio	SMSR	30			dB
Relative Intensity Noise	RIN			-130	dB/Hz
Transmitter Reflectance Reflectance				-12	dB
Transmitter eye mask Definition {X1, X2, X3, Y1, Y2, Y3}		{0.31, 0.4, 0.45, 0.34, 0.38, 0.4}				1

Optical receiver Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Signaling rate per lane		25.78125 ± 100 ppm			GBd
Lane center wavelengths(range)		1264.5	1271	1277.5	nm
		1284.5	1291	1297.5
		304.5	1311	1317.5
		1324.5	1331	1337.5
Receive Saturation (OMA) per Lane	Rmax	2.5
Receiver Sensitivity (OMA) per Lane	Rxsens			-10	dBm
LOS Optical De-assert	Pd			-11.6	dBm
LOS Optical Assert	Pa	-24		-13.6	dBm
LOS hysteresis		0.5			dB