Features4 channels full-duplex transceiver modulesTransmission data rate up to 28Gbps per channelSupport 40GE and 56G FDR data rate4 channels 850nm VCSEL array4 channels PIN photo d......

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100G QSFP28 to 2x 50G QSFP28 AOC

Description

FIBERWDM’s QSFP28 to 2 x QSFP28 breakout Active Optical Cable is a Four-Channel, Parallel, Fiber-Optic QSFP28 SR4 for 100 or 40 Gigabit Ethernet, InfiniBａnd FDR/EDR and 32GFC Applications. This transceiver is a high-performance module for short-range multi-lane data communication and interconnect applications. It integrates four data lanes in each direction with 112.2 Gbps bandwidth. Each lane can operate at 28.05Gbps up to 70 m using OM3 fiber or 100 m using OM4 fiber. These modules are designed to operate over multimode fiber systems using a nominal wavelength of 850nm. The electrical interface uses a 38contact edge type connector. The optical interface uses an 12 fiber MTP (MPO) connector. This module incorporates Color-chip Technologies proven circuit and VCSEL technology to provide reliable long life, high performance, and consistent service.

Figure1. 100G BASE-SR4 Module Block Diagram

QSFP28 to 2x QSFP28 Active Optical Cable Block Diagram

QSFP28 to 2x QSFP28 breakout Active Optical Cable is one kind of parallel transceiver. VCSEL and PIN array package is key technique, through I2C system can contact with module.

Absolute Maximum Ratings

Parameter	Symbol	Min	Max	Unit
Supply Voltage	Vcc	-0.3	3.6	V
Input Voltage	Vin	-0.3	Vcc+0.3	V
Storage Temperature	Tst	-20	85	oC
Case Operating Temperature	Top	0	70	oC
Humidity(non-condensing)	Rh	5	95	%

Recommended Operating Conditions

Parameter	Symbol	Min	Typical	Max	Unit
SupplyVoltage	Vcc	3. 13	3.3	3.47	V
Operating Case temperature	Tca	0		70	oC
Data Rate Per Lane	fd		25.78125	28.05	Gbps
Humidity	Rh	5		85	%
Power Dissipation QSFP28 end	Pm		2	2.5	W
Power Dissipation Fanout QSFP28 end			1.3	1.6	W
Fiber Bend Radius	Pb	3			cm

Electrical Specifications

Parameter	Symbol	Min	Typical	Max	Unit
Differential input impedance	Zin	90	100	110	ohm
Differential Output impedance	Zout	90	100	110	ohm
Differential input voltage amplitude	ΔVin	300		1100	mVp-p
Differential output voltage amplitude	ΔVout	500		800	mVp-p
Skew	Sw			300	ps
Input Logic Level High	VIH	2.0		VCC	V
Input Logic Level Low	VIL	0		0.8	V
Output Logic Level High	VOH	VCC-0.5		VCC	V
Output Logic Level Low	VOL	0		0.4	V

Note：

1. Differential input voltage amplitude is measured between TxnP and TxnN .

2. Differential output voltage amplitude is measured between RxnP and RxnN .

Optical Characteristics

Table 3-Optical Characteristics

Parameter	Symbol	Min	Typical	Max	Unit	Notes
Transmitter
Centre Wavelength	λc	840	850	860	nm	-
RMS spectral width	?λ	-	-	0.6	nm	-
Average launch power, each lane	Pout	-8.4	-	2.4	dBm	-
Optical Modulation amplitude(OMA),each lane	OMA	-6.4		3	dBm	-
Transmitter and dispersion eye closure(TDEC),each lane	TDEC			4.3	dB
Extinction Ratio	ER	3	-	-	dB	-
Average launch power of OFF transmitter, each lane				-30	dB	-
Eye Mask coordinates: X1,X2,X3,Y1,Y2,Y3	SPECIFICATIONVALUES {0.3,0.38,0.45,0.35,0.41.0.5}					HitRatio= 5x10-5
Receiver
Centre Wavelength	λc	840	850	860	nm	-
Stressed receiver sensitivity in OMA				-5.2	dBm	1
Maximum Average power at receiver, each lane				2.4	dBm	-
Minimium Atveragel power at receiver , each lane				-10.3	dBm
Receiver Reflectance				-12	dB	-
LOS Assert		-30			dBm	-
LOS De-Assert–OMA				-7.5	dBm	-
LOS Hysteresis		0.5			dB	-

Note：

1 .Measured with conformance test signal at TP3 for BER = 1e-5

Mechanical Dimensions

Ordering information

Part Number	Product Description
QSFP28-2x50G-AOCXXM	QSFP28 to 2 x QSFP28, 100GBASE-SR4, Active Optical Cable Active Optical Cable 70m on OM3 Multimode Fiber (MMF)ａnd 100m onOM4 Low power Version