Ascent Communication Technology

40G QSFP+ BIDI 150m

Ascent’s QSFP-AQ-LP-BD-01 Transceiver is a four-channel pluggable LC duplex fiber optic QSFP Transceiver for Gigabit Ethernet Applications. This transceiver is a high- performance module for short range duplex data communication and interconnect applications. This module integrates four electrical data lanes in each direction into transmission over a single LC duplex fiber optic cable. Each electrical lane operates at 10.3125 Gbps and conforms to the 40GE XLPPI interface. The transceiver internally multiplexes an XLPPI 4x 100G interface into two 20 Gb/s electrical channels transmitting and receiving each optically over one simplex LC fiber using bi-directional optics This results in an aggregate bandwidth of 40 Gbps into a duplex LC cable This allows reuse of the installed LC duplex cabling infrastructure for 40 GbE applications. Link distances up to 100m using OM3 and 150m using OM4 optical fiber are supported. The electrical interface uses a contact QSFP type edge connector. The optical interface uses a conventional LC duplex connector.

· Compliant to the 40GbE XLPPI electrical specification per IEEE 802.3ba-2010

· Compliant to QSFP+ SFF-8436 Specification

· Aggregate bandwidth of > 40Gbps

· Operates at 10.3125 Gbps per electrical channel with 64b/66b encoded data

· QSFP MSA compliant

· Capable of over 100m transmission on OM3 Multimode Fiber (MMF)and 150m on OM4 MMF

· Single +3.3V power supply operating

· With digital diagnostic functions

· Case Operating Temperature: Range: 0 to 70°C

· RoHS Compliant Part

· Utilizes a standard LC duplex fiber cable allowing reuse of existing cable infrastructure

Absolute Maximum Ratings

Parameter	Symbol	Min.	Typ.	Max.	Unit
Storage Temperature	Ts	-40		+85	°C
Supply Voltage	VccT, R	-0.5		4	V
Relative Humidity	RH	0		85	%

Recommended Operating Conditions

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Case operating Temperature	Tc	0		+70	°C
Supply Voltage	VccT, R	+3.13	3.3	+3.47	V
Supply Current	Icc			1000	mA
Power Consumption	PD			3.5	W

Optical Characteristics(TOP = 0 to 70°C, Vcc = 3.0 to 3.6 volts)

Parameter	Symbol	Min	Typ.	Max	Unit	Notes
Transmitter
Optical Wavelength CH1	A	832	850	868	nm
Optical Wavelength CH2	A	882	900	918	nm
RMS Spectral Width	Pm		0.5	0.65	nm
Average Optical Power per Channel	Pavg	-4	-2.5	+5.0	dBm
Laser Off Power Per Channel	Poff			-30	dBm
Optical Extinction Ratio	ER	3.5			dB
Relative Intensity Noise	Rin			-128	dB/HZ	1
Optical Return Loss Tolerance				12	dB
Receiver
Optical Center Wavelength CH1	A	882	900	918	nm
Optical Center Wavelength CH2	A	832	850	868	nm
Receiver Sensitivity per Channel	R		-6.5		dBm
Maximum Input Power	Pmax	+3.5			dBm
Receiver Reflectance	Rrx			-12	dB
LOS De-Assert	LOSd			-14	dBm
LOS Assert	LOSa	-30			dBm
LOS Hysteresis	LOSh	0.5			dB

Note: 12dB Reflection.

Electrical Characteristics(TOP = 0 to 70°C, Vcc = 3.13 to 3.47 volts)

Parameter	Symbol	Min	Typ.	Max	Unit	Notes
Data Rate per Channel		-	10.3125	11.2	Gbps
Power Consumption		-	2.5	3.5	W
Supply Current	Icc		0.75	1.0	A
Control I/O Voltage-High	VIH	2.0		Vcc	V
Control I/O Voltage-Low	VIL	0		0.7	V
Inter-Channel Skew	TSK			150	Ps
RESETL Duration			10		Us
RESETL De-assert time				100	ms
Power On Time				100	ms
Transmitter
Single Ended Output Voltage Tolerance		0.3		4	V	1
Common mode Voltage Tolerance		15			mV
Transmit Input Diff Voltage	VI	120		1200	mV
Transmit Input Diff Impedance	ZIN	80	100	120
Data Dependent Input Jitter	DDJ			0.1	UI
Data Input Total Jitter	TJ			0.28	UI
Receiver
Single Ended Output Voltage Tolerance		0.3		4	V
Rx Output Diff Voltage	Vo		600	800	mV
Rx Output Rise and Fall Voltage	Tr/Tf			35	ps	1
Total Jitter	TJ			0.7	UI
Deterministic Jitter	DJ			0.42	UI