Ascent Communication Technology

10G SFP+ LRM 1310 nm 2 km

ASCENT’s SFPP-ATLP-31-02 Small Form Factor Pluggable (SFP) transceivers are compatible with the Small Form Factor Pluggable Multi-Sourcing Agreement (MSA). The transceiver consists of five sections: the LD driver, the limiting amplifier, the digital diagnostic monitor, the 1310nm FP laser and the PIN photo-detector .The module data link up to 2KM in 9/125um single mode fiber.

• 10GBASE-LR/LW & 10G Ethernet

• Compliant to 802.3ae 10GBASE-LR/LW

• Compliant to SFF-8431

• RoHS Compliant.

SFPP‑AT‑LP‑31‑02 SFPP Transceiver

Parameter	Symbol	Value	Notes
Absolute Maximum Ratings
Storage Temperature	Ts	‑40 °C to +85 °C
Relative Humidity	RH	5 % to 95 %
Power Supply Voltage	Vcc	‑0.3 V to +4 V
Recommended Operating Conditions
Case Operating Temperature	Tcase	0 °C to +70 °C ‑40 °C to 85 °C	Commercial Industrial
Power Supply Voltage	Vcc	3.14 V to 3.47 V, 3.3 V typical
Power Supply Current	Icc	360 mA maximum
Data Rate	BR	10.3125 Gbps
Transmission Distance	TD	2 km
Coupled Fiber	Single‑mode fiber		9/125 µm SMF

Optical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	Note
Transmitter
Output Opt. Power	POUT	‑6		‑0.5	dBm	1
Optical Wavelength	λ	1260	1310	1355	nm
Spectral Width (RMS)	σ			3	nm
Optical Extinction Ratio	ER	3.5			dB
Output Eye Mask	Compliant with IEEE 802.3ae
Receiver
Rx Sensitivity	PSEN			‑14.4	dBm	2
Input Saturation Power (Overload)	Psat	0.5			dBm
Wavelength Range	λC	1270		1610	nm
LOS De ‑Assert	LOSD			‑17	dBm
LOS Assert	LOSA	‑30			dBm
LOS Hysteresis		0.5	1.0		dB

Notes:

1. Class 1 Laser Safety per FDA/CDRH and IEC‑825‑1 regulations.

2. Measured with a PRBS 2³¹‑1 test pattern, @10.3125Gb/s, BER<10^‑12.

Electrical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	Note
Supply Voltage	Vcc	3.14	3.3	3.46	V
Supply Current	Icc			360	mA
Transmitter
Input differential impedance	Rin		100		Ω	1
Differential data input swing	Vin,pp	180		1200	mV
Transmit Disable Voltage	VD	Vcc–1.3		Vcc	V
Transmit Enable Voltage	VEN	Vee		Vee+ 0.8	V	2
Transmit Disable Assert Time				10	us
Receiver
Differential data output swing	Vout,pp	300		850	mV	3
Data output rise time	tr	30			ps	4
Data output fall time	tf	30			ps	4
LOS Fault	VLOS fault	Vcc–1.3		VccHOST	V	5
LOS Normal	VLOS norm	Vee		Vee+0.8	V	5
Power Supply Rejection	PSR	100			mVpp	6

Notes:

1. Connected directly to TX data input pins. AC coupled thereafter.

2. Or open circuit.

3. Input 100 ohms differential termination.

4. These are unfiltered 20‑80% values

5. Loss of Signal is LVTTL. Logic 0 indicates normal operation; logic 1 indicates no signal detected.

6. Receiver sensitivity is compliant with power supply sinusoidal modulation of 20 Hz to 1.5 MHz up to specified value applied through the recommended power supply filtering network.