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Product Overview:

HTF’100G QSFP28 LR4 optical Transceiver integrates receiver and transmitter path on one module. On the transmit side, four lanes of serial data streams are recovered, retimed, and passed to four laser drivers. The laser drivers control a 4-distributed Feedback Laser (DFB) with center wavelength of 1296 nm, 1300 nm, 1305 nm, and 1309 nm. The optical signals are multiplexed to a single-mode fiber through an industry-standard LC connector. In the receiving side, the four lanes of optical data streams are opticallydemultiplexed by the integrated optical de-multiplexer. Each data stream is recovered by a PINphoto-detectorand 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 is compliant to IEEE 802.3bm.

Features:

Compliant with 100GBASE-LR4
Support line rates from 103.125 Gb/s to 111.81 Gb/s
Integrated LAN WDM TOSA / ROSA for up to 10 km reach over SMF
CAUI (10x10G) Electrical Interface and 4-lane 25.78 GB/s optical interface
Duplex LC optical receptacle
Support a Diagnostic Monitoring interface
No external reference clock
RoHS-6-compliant and lead-free
Compliant with QSFP28 MSA with LC connector
Single +3.3V power supply
Maximum power consumption: 3.5W
All-metal housing for superior EMI performance
Case operating temperature: Commercial: 0 ~ +70°C

Applications:

Data Center
Local Area Network (LAN)
Ethernet switches and router applications

Recommended Operating Conditions and Power Supply Requirements:

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Operating Case Temperature	TOP	0	70	°C	Commercial
Power Supply Voltage	VCC	3.135	3.3	3.465	V
Data Rate			100		Gb/s
Control Input Voltage is high.			2		VCC
Control Input Voltage is low.		0	0.8		V
Link Distance (SMF)	D	10			km	9/125um

. Electrical Characteristics:

Parameter	Symbol	Min	Typ.	Max	Unit	Notes
Power Consumption	p		3.5		W
Supply Current	Icc		1060		mA
Transmitter Single-ended Input Voltage Tolerance	Vcc	-0.3		4.0	V
Differential Input Voltage Swing	Vin,pp	180		1000	mVpp
Differential Input Impedance	Zin	90	100	110	Ohm	1
Transmit Disable Assert Time			10		us
Transmit Disable Voltage	Vdis	Vcc-1.3		Vcc	V
Transmit Enable Voltage	Ven	Vee	Vee+0.8		V	2
Receiver Differential Output Voltage Swing	Vout,pp	300		850	mVpp
Differential Output Impedance	Zout	90	100	110	Ohm	3
Data output rise/fall time	Tr/Tf		28		ps	4
LOS Assert Voltage	VlosH	Vcc-1.3		Vcc	V	5
LOS De-assert Voltage	VlosL	Vee	Vee+0.8		V	5

Optical Characteristics:

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Transmitter Lane wavelength (range)
L0		1294.53	1295.56	1296.59	nm
L1		1299.02	1300.05	1301.09	nm
L2		1303.54	1304.58	1305.63	nm
L3		1308.09	1309.14	1310.09	nm
Signaling rate, each lane			25.78125		GBd
Side-mode suppression ratio	SMSR			30
Total launch power			10.5		dBm
Average launch power, each lane	Pavg	-4.3	4.5		dBm
Extinction Ratio	ER			4	dB
Transmitter and Dispersion Penalty, each lane	TDP			2.2	dB
OMA minus TDP, each lane	OMA-TDP			-2.3	dBm
Average launch power of OFF transmitter, each lane			-30		dBm
Transmitter reflectance				-12	dB
Transmitter eye mask: {X1, X2, X3, Y1, Y2, Y3}						{0.25, 0.4, 0.45, 0.25, 0.28, 0.4}
Receiver Signaling rate, each lane			25.78125		GBd
Receiver Sensitivity per lane	Rsen	-10.6			dBm	1
Input Saturation Power (overload)	Psat			4.5	dBm
LOS Assert	LOSA		-30		dBm
LOS De-assert	LOSD		-12
Receiver reflectance	Rr			-26
LOS Hysteresis		0.5		4	dB

Digital Diagnostic Functions:

Parameter	Symbol	Min	Max	Unit	Notes
Temperature monitor: absolute error	DMI_Temp	-3	3	degC	Over operating temperature
Supply voltage monitor absolute error	DMI_VCC	-0.15	0.15	V	Full operating range
RX power monitor: absolute error	DMI_RX	-2	2	dB
The current monitor	DMI_bias	-10%	10%	mA
TX power monitor absolute error	DMI_TX	-2	2	dB