100G ER4 Optical Transceiver QSFP28 40km-Zhangjiagang Rich Opto International Trading Co., Ltd.

Specification:

Absolute Maximum Ratings
Parameter	Symbol	Min	Max	Unit
Storage Ambient Temperature	Tstr	‑40	85	℃
Operating Humidity	Ho	5	95	%
Power Supply Voltage	Vcc	‑0.5	3.6	V
Damage Threshold, each Lane	THd	‑3		dBm

Recommended Operating Conditions
Parameter	Symbol	Min	Typical	Max	Unit
Operating Case Temperature	Tc	0		70	℃
Power Supply Voltage	Vcc	3.135	3.3	3.465	V
Power Supply Current	ICC			1360	mA
Data Rate,each Lane			25.78125		Gbps
Control Input Voltage High		2		Vcc	V
Control Input Voltage Low		0		0.8	V
Data Rate Accuracy		‑100		100	ppm
Link Distance with SMF (without FEC)	D1	‑		30	km
Link Distance with SMF (with FEC)	D2			40	km

Electrical transmitter Characteristics
Parameter	Symbol	Min	Typical	Max	Unit	Notes
Power Consumption				4	W

Overload Differential Voltage pk‑pk	TP1a	900			mV

Common Mode Voltage (Vcm)	TP1	-350		2850	mV

Differential Termination Resistance Mismatch	TP1			10	%

Differential Return Loss (SDD11)	TP1			See CEI‑28G‑VSR Equation 13‑19	dB

Common Mode to Differential conversion and Differential to Common Mode conversion (SDC11, SCD11)	TP1			See CEI‑28G‑VSR Equation 13‑20	dB

Stressed Input Test	TP1a	See CEI‑

		28G‑VSR

Electrical receiver Characteristics
Parameter	Symbol	Min	Typical	Max	Unit	Notes
Differential Voltage, pk‑pk	TP4			900	mV

Common Mode Voltage (Vcm)	TP4	-350		2850	mV

Common Mode Noise, RMS	TP4			17.5	mV

Differential Termination Resistance Mismatch	TP4			10	%

Differential Return Loss (SDD11)	TP4			See CEI‑28G‑VSR Equation 13‑19	dB

Common Mode to Differential conversion and Differential to Common Mode conversion (SDC22, SCD22)	TP4			See CEI‑28G‑VSR Equation 13‑21	dB

Common Mode Return Loss (SCC22)	TP4			‑2	dB

Transition Time, 20 to 80%	TP4	9.5			ps

Vertical Eye Closure (VEC)	TP4			5.5	dB

Eye Width at 10‑15 probability (EW15)	tr	0.57			UI

Eye Height at 10‑15 probability (EH15)	tf	228			mV

Optical transmitter Characteristics
Parameter	Symbol	Min	Typical	Max	Unit	Notes
Launched Power (avg.)	Pavg	-2.5		4.5	dBm

Total Output. Power	Pout			10.5	dBm

OMA, each Lane	POMA	0.1		4.5	dBm

Difference in Launch Power between any Two Lanes (OMA)	Ptx,diff			3.6	dB

Launch Power in OMA minus Transmitter and Dispersion Penalty(TDP), each Lane		‑0.65			dBm

Wavelength Assignment	λ0	1294.53	1295.56	1296.59	nm

	λ1	1299.02	1300.05	1301.09	nm

	λ2	1303.54	1304.58	1305.63	nm

	λ3	1308.09	1309.14	1310.19	nm

TDP, each Lane	TDP			2.5	dB

Spectral Width(-20dB)	Δλ			1	nm

Side Mode Suppression Ratio	SMSR	30			dB

Extinction Ratio	ER	7			dB

Transmitter OFF Output Power	Poff			‑30	dBm

RIN20 OMA	RIN			‑130	Ohm

Output Eye Mask definition {X1, X2, X3, Y1, Y2, Y3}		{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}

Optical receiver Characteristics
Parameter	Symbol	Min	Typical	Max	Unit	Notes
Damage Threshold, each Lane	THd	-3			dBm
Average Receive Power, each Lane			-16.9		-4.9	dBm	@30km
Average Receive Power, each Lane			-20.9		-4.9	dBm	@40km
Receive Power (OMA), each Lane				-1.9	dBm
Receiver Sensitivity (OMA), each Lane	SEN1			-14.5	dBm	For BER = 1×10⁻¹²
Stressed Receiver Sensitivity (OMA), each Lane			-12.5			dBm	For BER = 1×10⁻¹²
Receiver Sensitivity (OMA), each Lane	SEN2			-18.5		dBm	For BER = 5×10⁻⁵
Stressed Receiver Sensitivity (OMA), each Lane			-16.65			dBm	For BER = 5×10⁻⁵
Receiver reflectance			-26			dB
Difference in Receive Power between any Two Lanes (Average and OMA)	Ptx,diff			3.6		dB
LOS Hysteresis	LOSH	0.5				dB
LOS Optical De‑assert	Pd			-24		dBm
LOS Optical Assert	Pa			-26		dBm
Receiver Electrical 3 dB upper Cutoff Frequency, each Lane	Fc			31		GHz
Vertical Eye Closure Penalty, each Lane			1.5			dB
Stressed Eye J2 Jitter, each Lane			0.3			UI
Stressed Eye J9 Jitter, each Lane			0.47			UI

100G ER4 Optical Transceiver QSFP28 40km

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