FTQ2-HG-SR4I

100G QSFP28 100m SR4 I-TEMP Transceivers

FEATURES

• Compliant with QSFP+ MSA Specification
• Wide Operating Temperature(-40°C~85°C)
• 4x25Gbps 850nm VCSEL-based Transmitter
• Maximum Link Length of 100m via OM4 Multimode Fiber(MMF)

APPLICATIONS

• Data Center Backbone
• 100GBASE-SR4 100G Ethernet

ABSOLUTE MAXIMUM RATINGS

Parameter	Symbol	Conditions	Min.	Max.	Unit
Storage Temperature	TStorage		-40	+85	°C
Relative Humidity	RH		0	+85	%

RECOMMENDED OPERATING CONDITIONS (Ta, unless noted)

Parameter	Symbol	Conditions	Min.	Typ.	Max.	Unit
Case Temperature	TC		-40		85	°C
Power Supply Voltage	VCC		3.135	3.3	3.465	V
Signaling Rate each Channel				25.78125		Gbps
Supply Noise Rejection			—	—	100	mV
Receiver Differential Data Output			—	100		Ohm
Operating Distance	D	@ OM3 MMF	—	—	70	m
Operating Distance	D	@ OM4 MMF			100	m

ELECTRICAL CHARACTERISTICS (Ta, unless noted)

Parameter	Symbol	Conditions	Min.	Typ.	Max.	Unit
Power Consumption					3.5	W
Supply Current	Icc				1050	mA

TRANSMITTER CHARACTERISTICS (T=25°C, unless noted)

Parameter	Symbol	Conditions	Min.	Typ.	Max.	Unit
Signaling rate, each lane (range)	GBb			25.78125		GBb
Center Wavelength	λ		840	850	860	nm
RMS Spectral Width	SW				0.6	nm
Average launch power, each lane	Pf		-8.4		2.4	dBm
Optical Modulation Amplitude (OMA), each lane	TxOMA		-6.4		3	dBm
Average launch power of OFF transmitter, each lane					-30	dBm
Extinction ratio	ER		3			dB
Optical return loss tolerance					12	dB

RECEIVER CHARACTERISTICS (Ta, unless noted)

Parameter	Symbol	Conditions	Min.	Typ.	Max.	Unit
Signaling rate, each lane (range)	GBb			25.78125		GBb
Center Wavelength	λ		840		860	nm
Damage threshold			3.4			dBm
Average power at receiver input, each lane			-10.3		2.4	dBm
Receive power, each lane (OMA)					3	dBm
Receiver sensitivity (OMA)	SOMA	BER@5e-5			-7.2	dBm
Receiver reflectance					-12	dB
LOS Assert	LOSA		-30			dBm
LOS De-Assert	LOSD				-10.5	dBm
LOS Hysteresis			0.5			dB

PIN ASSIGNMENT

PIN DESCRIPTION

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

Optical Interface Lanes and Assignment

The optical interface port is a male MPO connector .The four fiber positions on the left as shown in the below Figure, with the key up, are used for the optical transmit signals (Channel 1 through 4). The fiber positions on the right are used for the optical receive signals (Channel 4 through 1). The central four fibers are physically present.

OUTLINE DIMENSIONS

Digital Diagnostic Monitor Accuracy

The following characteristics are defined over recommended operating conditions

Parameter	Accuracy	Unit
Internally measured transceiver temperature	+/-3	deg.C
Internally measured transceiver supply voltage	+/-3	%
Measured Tx bias current	+/-10	%
Measured Tx output power	+/-3	dB
Measured Rx received average optical power	+/-3	dB

Order Information

model number	product description
FTQ2-HG-SR4I	QSFP28, 100G, SR4 I-TEMP, -40℃~85℃