100Gbps 40km QSFP28 Transceiver

NASA100GQSFPER4-40 QSFP28 transceiver module is designed for use in 100 Gigabit Ethernet links on up to 40km of single mode fiber without FEC. It is compliant with the QSFP28 MSA and IEEE 802.3bm CAUI-4. Digital diagnostics function is available via the I2C interface, as specified by the QSFP+ MSA.

Category: QSFP/QSFP28

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Description
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Product Specification

Model/PN: NASA100GQSFPER4-40

Features

• Supports 1Gb/s, each lane bit rate 25.78 Gb/s
• Up to 40km transmission on SMF
• LAN WDM TOSA ((1295.56, 1300.05, 1304.58, 1309.14nm) and APD receiver
• I2C interface with integrated Digital Diagnostic monitoring
• QSFP28 MSA package with duplex LC connector
• Single +3.3V power supply
• Maximum power consumption 4.5 W
• Operating case temperature: 0 to +70 °C
• Complies with RoHS

Application

• 100GBASE ER4 Ethernet Links with FEC
• With FEC on host can reach to 40KM
• Infiniband QDR and DDR interconnects
• Client-side 100G Telecom connections

1. Product Description

Each NASA100GQSFPER4-40 transceiver module is individually tested on a series of Cisco, Juniper, Dell, HP, IBM…. switches, routers, servers, network interface card (NICs) etc, and is fully compliant with the QSFP28 MSA, RoHS, CPRI, and the eCPRI standards. Featuring low power consumption, high speed, this 100G transceiver is ideal for 100G Ethernet, telecom, and data center.

2. Absolute Maximum Ratings

Parameter	Symbol	Min.	Typical	Max.	Unit	Notes
Storage Temperature	T_S	-40	–	+85	°C
Supply Voltage	V_CC	-0.5	–	+4.0	V
Operating Relative Humidity	RH	–	–	+85	%

3. Recommended Operating Conditions

Parameter	Symbol	Min.	Typical	Max.	Unit	Notes
Operating Case Temperature	T_C	0	–	+70	°C
Power Supply Voltage	V_CC	3.13	3.3	3.47	V
Power Supply Current	I_CC	–	–	1.37	A
Maximum Power Dissipation	P_D	–	–	4.5	W
Aggregate Bit Rate	BR_AVE	–	103.125	–	Gb/s
Lane Bit Rate	BR_LANE	–	25.78	–	Gb/s
Transmission Distance	TD		–	40	km	Over SMF

4. Optical Characteristics

Transmitter
Parameter	Symbol	Min.	Typical	Max.	Unit	Notes
Center Wavelength Lane 0	λ₀	1294.53	1295.56	1296.59	nm
Center Wavelength Lane 1	λ₁	1299.02	1300.05	1301.09	nm
Center Wavelength Lane 2	λ₂	1303.54	1304.58	1305.63	nm
Center Wavelength Lane 3	λ₃	1308.09	1309.14	1310.19	nm
Total Launch Power	P_ALL	–	–	10.5	dBm	1
Average Launch Power per Lane	P_{TX_LANE}	-4.3	–	4.5	dBm	1
Transmit OMA per Lane	TxOMA	-2.9	–	4.5	dBm	1
Difference in launch power between lanes	P_{TX_Delta_LANE}	–	–	5	dB
Average Output Power (Laser Turn off)	P_OUT-OFF	–	–	-30	dBm
Side Mode Suppression Ratio	SMSR	30	–	–	dB
Extinction Ratio	ER	7	–	–	dB
Transmitter and Dispersion Penalty	TDP	–	–	2.2	dB	2
Optical Return Loss Tolerance	ORLT	–	–	20	dB
RIN20OMA	RIN			-130	dB/Hz
Optical Eye Mask	Compliant with IEEE 802.3ba					2
Receiver
Center Wavelength Lane 0	λ₀	1294.53	1295.56	1296.59	nm
Center Wavelength Lane 1	λ₁	1299.02	1300.05	1301.09	nm
Center Wavelength Lane 2	λ₂	1303.54	1304.58	1305.63	nm
Center Wavelength Lane 3	λ₃	1308.09	1309.14	1310.19	nm
Average Rx Power per Lane@40km	P_{Rx _LANe}	-16.9		-4.9	dBm	2
Average Receive Power, each Lane @40km	P_{Rx _LANe}	-20.9		-4.9	dBm
Receive Power (OMA), each Lane	Sen_OMA	–	–	-1.9	dBm	2
Difference in Receive Power between any Two Lanes (OMA)		–	–	5.5	dB
Reflectance	Ref	–	–	-26	dB
LOS Assert per lane	LOS_A	–	-26	–	dBm
LOS De-assert	LOS_D	–	-24	–	dBm
LOS Hysteresis	LOS_H	0.5	–	–	dB

Notes:

The optical power is launched into SMF.
Measured with a PRBS 2³¹-1 test pattern @25.78125 Gb/s.

5. Electrical Characteristics

Transmitter (Module Input)
Parameter	Symbol	Min.	Typical	Max.	Unit	Notes
Differential Data Input Amplitude	V_IN,P-P	100	–	1100	mVpp
Common mode noise (rms)		–	–	17.5	mV
Differential Termination Mismatch		–	–	10	%
Receiver (Module Output)
Differential Data Output Amplitude	V_OUT,P-P	–	–	900	mVpp
Common mode noise (rms)		–	–	17.5	mV
Differential Termination Mismatch		–	–	10	%
Output Rise/Fall Time, 20%~80%	T_R/T_F	10	–	–	ps

6. Pin Description

Pin	Name	Logic	Function	Plug Seq.	Notes
1	GND		Ground	1	1
2	Tx2n	CML-I	Transmitter Inverted Data Input	3
3	Tx2p	CML-I	Transmitter Non-Inverted Data Input	3
4	GND		Ground	1	1
5	Tx4n	CML-I	Transmitter Inverted Data Input	3
6	Tx4p	CML-I	Transmitter Non-Inverted Data Input	3
7	GND		Ground	1	1
8	ModSelL	LVTTL-I	Module Select	3
9	ResetL	LVTTL-I	Module Reset	3
10	VccRx		+3.3V Power Supply Receiver	2	2
11	SCL	LVCMOS-I/O	2-wire serial interface clock	3
12	SDA	LVCMOS-I/O	2-wire serial interface data	3
13	GND		Ground	1
14	Rx3p	CML-O	Receiver Non-Inverted Data Output	3
15	Rx3n	CML-O	Receiver Inverted Data Output	3
16	GND		Ground	1	1
17	Rx1p	CML-O	Receiver Non-Inverted Data Output	3
18	Rx1n	CML-O	Receiver Inverted Data Output	3
19	GND		Ground	1	1
20	GND		Ground	1	1
21	Rx2n	CML-O	Receiver Inverted Data Output	3
22	Rx2p	CML-O	Receiver Non-Inverted Data Output	3
23	GND		Ground	1	1
24	Rx4n	CML-O	Receiver Inverted Data Output	3
25	Rx4p	CML-O	Receiver Non-Inverted Data Output	3
26	GND		Ground	1	1
27	ModPrsL	LVTTL-O	Module Present	3
28	IntL	LVTTL-O	Interrupt	3
29	VccTx		+3.3V Power supply transmitter	2	2
30	Vcc1		+3.3V Power supply	2	2
31	LPMode	LVTTL-I	Low Power Mode	3
32	GND		Ground	1	1
33	Tx3p	CML-I	Transmitter Non-Inverted Data Input	3
34	Tx3n	CML-I	Transmitter Inverted Data Input	3
35	GND		Ground	1	1
36	Tx1p	CML-I	Transmitter Non-Inverted Data Input	3
37	Tx1n	CML-I	Transmitter Inverted Data Input	3
38	GND		Ground	1	1

Notes:

GND is the symbol for signal and supply (power) common for the QSFP28 module. All are common within the QSFP28 module and all module voltages are referenced to this potential unless otherwise noted. Connected there directly to the host board signal-common ground plane.
VccRx, Vcc1 and VccTx are the receiver and transmitter power supplies and shall be applied concurrently. Requirements defined for the host side of the Host Edge Card Connector are listed in QSFP MSA. VccRx, Vcc1 and VccTx may be internally connected within the QSFP28 in any combination. The connector pins are each rated for a maximum current of 500mA.

7. Recommended Host Board Power Supply Circuit

8. Mechanical Dimension

9. Warnings

Handling Precautions: This device is susceptible to damage as a result of electrostatic discharge (ESD). A static free environment is highly recommended. Follow guidelines according to proper ESD procedures.

Laser Safety: Radiation emitted by laser devices can be dangerous to human eyes. Avoid eye exposure to direct or indirect radiation.

10. Order Information

Part No.	Data Rate	Laser	Fiber Type	Distance	Optical Interface	Temp	DDMI
NASA100GQSFPER4-40	103.1Gbps	LAN WDM DFB	SMF	40km	LC	0~70℃	Y

NOTICE: NASA-SI reserves the right to make changes to this product in this specification without notice, in order to improve product performance.

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100Gbps 40km QSFP28 Transceiver

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