Ascent Communication Technology

10G SFP+ CWDM 2733 40 km

Ascent’s SFPP-AT-LP-XXXX-40 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 40 km in distance over a 9/125 µm single mode fiber.

• Up to 11.3 Gbps Data Links

• Up to 40 km transmission on SMF

• Power dissipation < 1.0 W

• 1270 nm DFB laser and PIN receiver for SFPP-AT-LP-2733-40

• 1330nm DFB laser and PIN receiver for SFPP-AT-LP-3327-40

• 2-wire interface with integrated Digital Diagnostic monitoring

• EEPROM with serial ID functionality

• Compliant with SFP+ MSA with LC connector

• 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	0	‑	70	°C	Without air flow
	T_CASE	‑40	‑	85	°C	Industrial
Power Supply Voltage	V_CC	3.14	3.3	3.47	V
Power Supply Current	I_CC	‑	‑	300	mA
Data Rate	BR	‑	10.3125	11.3	Gbps
Transmission Distance	TD	‑	‑	40	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	‑	5	dBm
Average Optical Power (Laser Off)	P_OFF	‑	‑	‑30	dBm	1
Center Wavelength Range	λ_C	1260	1270	1280	nm	SFPP‑AT‑LP‑2733‑40
	λ_C	1320	1330	1340	nm	SFPP‑AT‑LP‑3327‑40
Side Mode Suppression Ratio	SMSR	30	‑	‑	dB
Spectrum Bandwidth (‑20 dB)	σ	‑	‑	1	nm
Optical Extinction Ratio	ER	3.5	‑	‑	dB	2
Output Eye Mask	Compliant with IEEE 802.3ae					2
Receiver
Input Optical Wavelength	λ_IN	1320	1330	1340	nm	SFPP‑AT‑LP‑2733‑40
	λ_IN	1260	1270	1280	nm	SFPP‑AT‑LP‑3327‑40
Receiver Sensitivity	P_SEN	‑	‑	‑15	dBm	3
Input Saturation Power (Overload)	P_SAT	0.5	‑	‑	dBm	3
LOS Assert	LOSA	‑30	‑	‑	dBm
LOS De‑assert	LOSD	‑	‑	‑17	dBm
LOS Detect Hysteresis	P_HYS	0.5	‑	5	dB

Notes:

1. The optical power is launched into an SMF

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

3. 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				mA
Transmitter
Differential Data Input Voltage	VDT	180	‑	700	mVp‑p
Differential Line Input Impedance	R_IN	85	100	115	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	‑	V_CC+0.3	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	‑	‑	38	ps
LOS Fault	VLOS_FAULT	V_CC‑1.3	‑	V_CCHOST	V
LOS Normal	VLOS_NORM	V_ee	‑	V_ee+0.8	V