QSFP28 100G ER4 40km

Compliant with 100GBASE-ER4
Support line rates from 103.125 Gbps to 111.81 Gbps
Integrated LAN WDM TOSA / APD ROSA for up to 30 km reach over SMF without FEC
Digital Diagnostics Monitoring Interface
Duplex LC optical receptacle
No external reference clock
Electrically hot-pluggable
Compliant with QSFP28 MSA with LC connector
Case operating temperature range:0°C to 70°C
Power dissipation < 4.0 W

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Product Detail
Applications
Pin Assignment
Outline Dimensions

HANSUN OPTICS 100G QSFP28 ER4 Lite optical Transceiver integrates receiver and transmitter path on
one module. In the transmit side, four lanes of serial data streams are recovered, retimed, and passed to four
laser drivers. The laser drivers control 4- EML with center wavelength of 1296 nm, 1300nm, 1305nm and
1309 nm. The optical signals are multiplexed to a single –mode fiber through an industry standard LC
connector. In the receive side, the four lanes of optical data streams are optically de-multiplexed by the
integrated optical de- multiplexer. Each data stream is recovered by a APD and trans-impedance amplifier,
retimed. This module features a hot-pluggable electrical interface, low power consumption and MDIO
management interface.
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 IEEE 802.3bm.

Specifications of QSFP28 100G ER4 40km

Absolute Maximum Ratings

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Storage Temperature	Ts	-40	–	85	ºC
Relative Humidity	RH	5	–	95	%
Power Supply Voltage	VCC	-0.3	–	4	V
Signal Input Voltage		Vcc-0.3	–	Vcc+0.3	V

Recommended Operating Conditions

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Case Operating Temperature	Tcase	0	–	70	ºC	Without air flow
Power Supply Voltage	VCC	3.13	3.3	3.47	V
Power Supply Current	ICC	–		1200	mA
Data Rate	BR		25.78125		Gbps	Each channel
Transmission Distance	TD		–	30	km
Coupled fiber	Single mode fiber	9/125um SMF

Note：100G Ethernet and ITU-T OTU4 has different register setting ，not auto- Negotiatio

Optical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	NOTE
Transmitter
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
Total Output. Power	POUT			10.5	dBm
Average Launch Power Per lane		-2.5		4.5	dBm
Spectral Width (-20dB)	σ			1	nm
SMSR		30			dB
Optical Extinction Ratio	ER	4			dB
Average launch Power off per lane	Poff			-30	dBm
RIN	RIN			-128	dB/Hz
Output Eye Mask definition{X1，X2，X3，Y1，Y2，Y3}	{0.25，0.4，0.45，0.25，0.28，0.4}
Receiver
Receive Power per lane(Max)	Rov			-7	dBm
Receiver Sensitivity (OMA),each Lane （BER = 5×10-5）				-18.5	dBm	1
Receiver Sensitivity (OMA),each Lane （BER = 1×10-12）				-15	dBm	1
LOS De-Assert	LOSD	-35			dBm
LOS Assert	LOSA			-18	dBm

Notes:Measured with a PRBS 2 -1 test pattern, @25.78Gb/s

Electrical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	NOTE
Supply Voltage	Vcc	3.13	3.3	3.47	V
Supply Current	Icc			1200	mA
Transmitter
Input differential impedance	Rin		100		Ω	1
Differential data input swing	Vin,pp	180		1000	mV
Transmit Disable Voltage	VD	Vcc–1.3		Vcc	V
Transmit Enable Voltage	VEN	Vee		Vee+ 0.8	V	2
Receiver
Differential data output swing	Vout,pp	300		850	mV	3
LOS Fault	VLOS fault	Vcc–1.3		VccHOST	V	4
LOS Normal	VLOS norm	Vee		Vee+0.8	V	4

Notes:

Connected directly to TX data input pins. AC coupled thereafter.
1. Or open circuit.
1. Into 100 ohms differential termination.
1. Loss Of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.

100G Ethernet &100GBASE-ER4

ITU-T OTU4

Pin	Symbol	Name/Description	NOTE
1	GND	Transmitter Ground (Common with Receiver Ground)	1
2	Tx2n	Transmitter Inverted Data Input
3	Tx2p	Transmitter Non-Inverted Data output
4	GND	Transmitter Ground (Common with Receiver Ground)	1
5	Tx4n	Transmitter Inverted Data Input
6	Tx4p	Transmitter Non-Inverted Data output
7	GND	Transmitter Ground (Common with Receiver Ground)	1
8	ModSelL	Module Select
9	ResetL	Module Reset
10	VccRx	3.3V Power Supply Receiver	2
11	SCL	2-Wire serial Interface Clock
12	SDA	2-Wire serial Interface Data
13	GND	Transmitter Ground (Common with Receiver Ground)
14	Rx3p	Receiver Non-Inverted Data Output
15	Rx3n	Receiver Inverted Data Output
16	GND	Transmitter Ground (Common with Receiver Ground)	1
17	Rx1p	Receiver Non-Inverted Data Output
18	Rx1n	Receiver Inverted Data Output
19	GND	Transmitter Ground (Common with Receiver Ground)	1
20	GND	Transmitter Ground (Common with Receiver Ground)	1
21	Rx2n	Receiver Inverted Data Output
22	Rx2p	Receiver Non-Inverted Data Output
23	GND	Transmitter Ground (Common with Receiver Ground)	1
24	Rx4n	Receiver Inverted Data Output	1
25	Rx4p	Receiver Non-Inverted Data Output
26	GND	Transmitter Ground (Common with Receiver Ground)	1
27	ModPrsl	Module Present
28	IntL	Interrupt
29	VccTx	3.3V power supply transmitter	2
30	Vcc1	3.3V power supply	2
31	LPMode	Low Power Mode
32	GND	Transmitter Ground (Common with Receiver Ground)	1
33	Tx3p	Transmitter Non-Inverted Data Input
34	Tx3n	Transmitter Inverted Data Output
35	GND	Transmitter Ground (Common with Receiver Ground)	1
36	Tx1p	Transmitter Non-Inverted Data Input
37	Tx1n	Transmitter Inverted Data Output
38	GND	Transmitter Ground (Common with Receiver Ground)	1

Notes:

GND is the symbol for signal and supply (power) common for QSFP28 modules. All are common within the QSFP28 module and all module voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal common ground
VccRx, Vcc1 and VccTx are the receiving and transmission power suppliers and shall beapplied

concurrently. Recommended host board power supply filtering is shown below. Vcc Rx, Vcc1 and Vcc Tx may be internally connected within the QSFP28 transceiver module in any combination. The connector pins are each rated for a maximum current of 500mA.