NNQ-40G-ER4

QSFP+ 40G

QSFP+ 40G, 1340nm, 10km, ER4, Single Mode

Short Description

QSFP+-40Gb/s ER4 QSFP+ 40G, 1340nm, 10km, ER4 Single Mode

Application

40GBASE-ER4 Ethernet Links
Infiniband QDR and DDR interconnects
Client-side 40G Telecom connections

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Overview

This product is a transceiver module designed for 10-20km optical communication applications. The design is compliant to 40GBASE-LR4 of the IEEE P802.3ba standard. The module converts 4 inputs channels (ch) of 10Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission. Reversely, on the receiver side, the module optically de-multiplexes a 40Gb/s input into 4CWDM channels signals, and converts them to 4 channel output electrical data.

The central wavelengths of the 4 CWDM channels are 1271, 1291, 1311 and 1331 nm as members of the CWDM wavelength grid defined in ITU-T G.694.2. It contains a duplex LC connector for the optical interface and a 38-pin connector for the electrical interface. To minimize the optical dispersion in the long-haul system, single-mode fiber (SMF) has to be applied in this module.

The product is designed with form factor, optical/electrical connection and digital diagnostic interface according to the QSFP+ Multi-Source Agreement (MSA). It has been designed to meet the harshest external operating conditions including temperature, humidity and EMI interference.

Specifications

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	Max	Unit	Notes
Storage Temperature	T_S	-40	85	℃
Operating Case Temperature	T_OP	0	70	℃
Power Supply Voltage	V_CC	-0.5	3.6	V
Relative Humidity (non-condensation)	RH	0	85	%
Damage Threshold, each Lane	TH_d	3.3		dBm

Recommended Operating Conditions and Power Supply Requirements

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Operating Case Temperature	T_OP	0		70	℃
Power Supply Voltage	V_CC	3.135	3.3	3.465	V
Data Rate, each Lane			10.3125		Gb/s
Control Input Voltage High		2		V_CC	V
Control Input Voltage Low		0		0.8	V
Link Distance with G.652	D	0.002		10	km

Electrical Characteristics

The following electrical characteristics are defined over the Recommended Operating Environment unless otherwise specified.

Parameter	Test Point	Min	Typical	Max	Unit	Notes
Power Consumption				2.5	W
Supply Current	I_CC			0.7	A
Transceiver Power-on Initialization Time				2000	ms	1
Transmitter (each Lane)
Single-ended Input Voltage Tolerance (Note 2)		-0.3		4.0	V	Referred to TP1 signal common
AC Common Mode Input Voltage Tolerance		15			mV	RMS
Differential Input Voltage Swing Threshold		50			mVpp	LOSA Threshold
Differential Input Voltage Swing	Vin,pp	190		700	mVpp
Differential Input Impedance	Zin	90	100	110	ohm
Differential Input Return Loss		See IEEE 802.3ba 86A.4.11			dB	10MHz- 11.1GHz
J2 Jitter Tolerance	Jt2	0.17			UI
J9 Jitter Tolerance	Jt9	0.29			UI
Data Dependent Pulse Width Shrinkage (DDPWS ) Tolerance		0.07			UI
Eye Mask Coordinates {X1, X2, Y1, Y2}		0.11, 0.31 95, 350			UI mV	Hit Ratio = 5×10^-5
Receiver (each Lane)
Single-ended Output Voltage		-0.3		4.0	V	Referred to signal common
AC Common Mode Output Voltage				7.5	mV	RMS
Differential Output Voltage Swing	Vout,pp	300		850	mVpp
Differential Output Impedance	Zout	90	100	110	ohm
Termination Mismatch at 1MHz				5	%
Differential Output Return Loss		See IEEE 802.3ba 86A.4.2.1			dB	10MHz- 11.1GHz
Common Mode Output Return Loss		See IEEE 802.3ba 86A.4.2.2			dB	10MHz- 11.1GHz
Output Transition Time		28			Ps	20% to 80%
J2 Jitter Output	Jo2			0.42	UI
J9 Jitter Output	Jo9			0.65	UI
Eye Mask Coordinates {X1, X2, Y1, Y2}		0.29, 0.5, 150, 425			UI mV	Hit Ratio = 5×10-5

Notes:

Power-on Initialization Time is the time from when the power supply voltages reach and remain above the inimum recommended operating supply voltages to the time when the module is fully functional.
The single ended input voltage tolerance is the allowable range of the instantaneous input signals.

Optical Characteristics

Parameter	Symbol	Min	Typical		Max	Unit	Notes
Wavelength Assignment	L0	1264.5	1271		1277.5	nm
	L1	1284.5	1291		1297.5	nm
	L2	1304.5	1311		1317.5	nm
	L3	1324.5	1331		1337.5	nm
Transmitter
Side Mode Suppression Ratio	SMSR	30				dB
Total Average Launch Power	P_T				8.3	dBm
Average Launch Power, each Lane	P_AVG	-4			2.3	dBm
Optical Modulation Amplitude (OMA), each Lane	P_OMA	-4			3.5	dBm	1
Difference in Launch Power between any Two Lanes (OMA)	Ptx,diff				6.5	dB
Launch Power in OMA minus Transmitter and Dispersion Penalty (TDP), each Lane		-4.8				dBm
TDP, each Lane	TDP				2.6	dB
Extinction Ratio	ER	3.5				dB
Relative Intensity Noise	RIN				-128	dB/Hz	12dB reflection
Optical Return Loss Tolerance	TOL				20	dB
Transmitter Reflectance	R_T				-12	dB
Transmitter Eye Mask Definition {X1, X2, X3, Y1, Y2, Y3}		{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}
Average Launch Power OFF Transmitter, each Lane	Poff			-30		dBm
Receiver
Damage Threshold, each Lane	TH_d	3.3				dBm	2
Total Average Receive Power					8.3	dBm
Average Receive Power, each Lane		-13.7			2.3	dBm
Receiver Reflectance	R_R				-26	dB
Receiver Sensitivity (OMA), each Lane	SEN				-11.5	dBm
Stressed Receiver Sensitivity (OMA), each Lane					-9.6	dBm	3
Difference in Receive Power between any Two Lanes (OMA)	Prx,diff				7.5	dB
LOS Assert	LOSA	-28				dBm
LOS Deassert	LOSD				-15	dBm
LOS Hysteresis	LOSH	0.5				dB
Receiver Electrical 3 dB upper Cutoff Frequency, each Lane	F_C				12.3	GHz
Conditions of Stress Receiver Sensitivity Test (Note 5)
Vertical Eye Closure Penalty, each Lane			1.9			dB
Stressed Eye J2 Jitter, each Lane			0.3			UI
Stressed Eye J9 Jitter, each Lane			0.47			UI

Key Features