Ascent Communication Technology

32G SFP28 SR 850 nm 100 m

Ascent’s SFP28 32GBase-SR Transceiver is intended for 100m reach service 28.05Gb/s 850nm Multi-mode high-speed communications equipment where low-cost, extraordinary performance and reliability are essential. It consumes low power, operates base on 3.3V DC power supply and is offered in the commercial temperature range via an LC duplex connector. They are compliant with SFP+ MSA, SFF-8431 and SFF-8432. High speed electrical and optical specifications are compliant with ANSI Fibre Channel FC-PI-6. Digital diagnostics functions are available via a 2-wire common management interface, to allow access to real-time operating parameters. With these features, this easy-to-install, hot-swappable transceiver is suitable for fiber communications application up to 32G. The FC transceiver is applied to Storage Area Networking in Data Centers, Data Center Fiber Channel Interconnections over Backbone, Enterprise Network SAN Interconnections, etc.

· Support DDM (Digital diagnostic) comparetible with SFF-8472

· CDR integrated

· Compatible with SFF-8024, SFF-8431, SFF-8432

· Compatible with IEEE802.3by

· Application: Infiniband EDR application; 32G Fiber Channel application

· 32GFC(28.05Gb/s) serial optical interface

· 850nm VCSEL transmitter

· GaAs PIN PD receiver

· Low power consumption <1W

· Maximum link length of 100m via OM4 multimode Fiber (MMF)

· Fibre Channel FC-PI-6 compliant

· RoHS compliant

Absolute Maximum Ratings

Parameter	Symbol	Min.	Typ.	Max.	Unit
Storage Temperature	Ts	-40		85	°C
Relative Humidity	RH	0		85	%

Recommended Operating Conditions

Parameter	Symbol	Min.	Typ.	Max	Unit
Case Temperature	Tc	0		+70	°C
Power Supply Voltage	Vcc	3.15	3.30	3.45	V
Signaling Rate each Channel	BR		28.05		Gbps

Optical Characteristics (T=25°C, unless noted)

Parameter	Symbol	Min.	Typ.	Max	Unit
Transmitter
Center Wavelength	λ		840	860	nm
RMS Spectral Width	Pm			0.6	nm
Average Pptical Power	Pavg		-8.4	2.4	dBm
Optical Modulation Amplitude	OMA		-6.4	3	dBm
Average Launch Power of OFF Transmitter	Poff			-30	dBm
Extinction Ratio	ER		2		dB
Optical Return Loss Tolerance				12	dB
Receiver
Center Wavelength	λ	840	850	860	nm
Damage Threshold		3.4			dBm
Receive Power Overload		2.4			dBm
Receiver Reflectance				-12	dB
Receiver Sensitivity	SENS			-10	dBm
LOS Assert	LOS_A	-30			dBm
LOS De-Assert	LOS_D			-13	dBm
LOS Hysteresis	LOSH	0.5			dB