Ascent Communication Technology

10G SFP+ CWDM 4955 80 km

Ascent’s SFPP-AT-LP-XXXX-80 transceivers are designed expressly for high-speed communication applications that require rates up to 11.3 Gb/s. They are designed to be compliant with the SFF-8472 SFP+ MSA. The module is suitable for data links up to 80 km in distance over a 9/125 µm single mode fiber. ASCENT SFP+ transceivers provide a unique enhanced digital diagnostic monitoring interface which allows real-time access to device operating parameters such as transceiver temperature, laser bias current, transmitted optical power, received optical power, and transceiver supply voltage. It also defines a sophisticated system of alarm and warning flags which alerts end users when particular operating parameters are outside of a factory set normal range.

• Up to 11.3 Gbps Data Links
• Up to 80 km transmission on SMF
• Power dissipation < 1.0 W
• 1490 nm DFB laser and PIN receiver for SFPP-AT-LP-4955-80
• 1550 nm DFB laser and PIN receiver for SFPP-AT-LP-5549-80
• 2-wire interface with integrated Digital Diagnostic monitoring
• EEPROM with serial ID functionality
• Compliant with SFP+ MSA with LC connector
• Compliant with SFF 8431 and SFF 8472
• Single + 3.3V power supply

Absolute Maximum Ratings

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Storage Temperature	Ts	-40	-	85	°C
Relative Humidity	RH	5	-	95	%
Power Supply Voltage	V_CC	-0.3	-	4.0	V
Signal Input Voltage		V_cc - 0.3	-	V_cc + 0.3	V

Recommended Operating Conditions

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Case Operating Temperature	T_CASE	-10	-	70	°C	Commercial
	T_CASE	-40	-	85	°C	Industrial
Power Supply Voltage	V_CC	3.14	3.3	3.47	V
Power Supply Current	I_CC	-	-	450	mA
Data Rate	BR	-	10.3125	11.3	Gbps
Transmission Distance	TD	-	-	80	km
Coupled Fiber	Single-mode fiber					9/125 µm SMF

Optical Characteristics

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Transmitter
Average Optical Power	P_OUT	0	-	4	dBm	SFPP-LP-4955-80
		-1	-	3	dBm	SFPP-LP-5549-80
Average Optical Power (Laser Off)	P_OFF	-	-	-30	dBm	1
Center Wavelength Range	λ_C	λ - 7.5	λ	λ + 7.5	nm	2
Side Mode Suppression Ratio	SMSR	30	-	-	dB
Spectrum Bandwidth (-20 dB)	σ	-	-	0.3	nm
Optical Extinction Ratio	ER	3.5	-	-	dB	3
Output Eye Mask	Compliant with IEEE 802.3ae					3
Receiver
Input Optical Wavelength	λ_IN	1480	1490	1500	nm	SFPP-LP-4955-80
	λ_IN	1540	1550	1560	nm	SFPP-LP-5549-80
Receiver Sensitivity	P_SEN	-	-	-23	dBm	4
Input Saturation Power (Overload)	P_SAT	-6	-	-	dBm	4
LOS Assert	LOSA	-38	-	-	dBm
LOS De-assert	LOSD	-	-	-24	dBm
LOS Detect Hysteresis	P_HYS	0.5	-	8	dB

Notes:

1. The optical power is launched into an SMF.

2. λ is the wavelength at room temperature.

3. Measured with RPBS 2^31-1 test pattern @10.3125Gbs.

4. Measured with RPBS 2^31-1 test pattern @10.3125Gbs BER ≤ 10^-12.

Electrical Characteristics

Parameter	Symbol	Min	Typ.	Max	Unit	Notes
Total Power Supply Current	I_CC	-	-	450	mA	Commercial
		-	-	500	mA	Industrial
Transmitter
Differential Data Input Voltage	VDT	180	-	1200	mVp-p
Differential Line Input Impedance	R_IN	80	100	120	Ω
Transmitter Fault Output-High	V_FAULTH	2.4	-	V_CC	V
Transmitter Fault Output-Low	V_FAULTL	-0.3	-	0.8	V
Transmitter Disable Voltage- High	V_DISH	2.0	-	V_CC+0.3	V
Transmitter Disable Voltage- High	V_DISL	-0.3	-	0.8	V
Receiver
Differential Data Output Voltage	V_DR	300	-	850	mVp-p
Differential line Output Impedance	R_OUT	80	100	120	Ω
Receiver LOS Pull Up Resistor	R_LOS	4.7	-	10	kΩ
Data Output Rise/Fall Time	tr/tf	24	-	-	ps
LOS Fault	VLOS_FAULT	V_CC- 1.3	-	V_CCHOST	V
LOS Normal	VLOS_NORM	V_ee	-	V_ee+0.8	V