Ascent Communication Technology

10G SFP+ ER 1550 nm 40 km

ASCENT’s SFP+ transceiver SFPP-ATLP-51-40 is designed for use in 10-Gigabit Ethernet links up to 40km over single mode fiber. The module consists of 1550 EML Laser, InGaAs PIN and Preamplifier in a high-integrated optical sub-assembly. Digital diagnostics functions are available via a 2-wire serial interface, as specified in SFF¬8472. The module data link up to 40km in 9/125um single mode fiber.

• Up to 11.1 Gbps Data Links

• Up to 40 km transmission on SMF

• EML transmitter and PIN receiver

• Metal enclosure, for lower EMI

• 2-wire interface with integrated Digital Diagnostic monitoring

• Hot-pluggable SFP+ footprint

• Specifications compliant with SFF 8472

• Compliant with SFP+ MSA with LC connector

• Single 3.3V power supply

• Case operating temperature range: 0 °C to 70 °C

• Power dissipation < 1.5 W

Absolute Maximum Ratings

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Storage Temperature	Ts	‑40	‑	85	°C
Relative Humidity	RH	5	‑	95	%
Power Supply Voltage	VCC	‑0.3	‑	4	V
Signal Input Voltage		Vcc‑0.3	‑	Vcc+0.3	V

Recommended Operating Conditions

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Case Operating Temperature	Tcase	0	‑	70	°C	Without air flow
Power Supply Voltage	VCC	3.14	3.3	3.47	V
Power Supply Current	ICC	‑		450	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	Note
Transmitter
Average Launched Power	PO	‑1		+3	dBm	1
Extinction Ratio	ER	8.2			dB	2
Center Wavelength	λc	1530	1550	1565	nm
Spectrum Band Width (RMS)	σ			1.0	nm
SMSR		30			dB
Transmitter OFF Output Power	POff			‑30	dBm
Transmitter and Dispersion Penalty	TDP			3.0	dB
Output Eye Mask	Compliant with IEEE 802.3ae
Receiver
Input Optical Wavelength	λ	1270		1610	nm
Receiver Sensitivity	Psen			‑16.0	dBm	2
Input Saturation Power (Overload)	Psat	0			dBm
LOS Detect ‑ Assert Power	PA	‑30			dBm
LOS Detect ‑ Deassert Power	PD			‑17	dBm
LOS Detect Hysteresis	PHYS	0.5			dB

Notes:

1. Launched power (avg.) is power coupled into a single‑mode fiber with master connector.

2. Measured with test signal @ 10.3125 Gbps, PRBS=2³¹‑1, NRZ, O/E module Keysight 86105D with filter 10.3125Gb/s (ER > 8.2 dB, at least 1 dB lower than Keysight 86105D measurement when using Agilent 86105C)

3. Measured with conformance test signal for BER = 10^–¹² @ 10.3125 Gbps, PRBS=2³¹‑1, NRZ; optical source with worst ER, wavelength between 1530 nm and 1565 nm; back to back

Electrical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	Note
Supply Voltage	Vcc	3.14	3.3	3.46	V
Supply Current	Icc			450	mA	1
Transmitter
Input Differential Impedance	Rin		100		Ω	2
Single Ended Data Input Swing	Vin, pp	180		700	mV
Transmit Disable Voltage	VD	2.0		Vcc	V	3
Transmit Enable Voltage	VEN	Vee		Vee+ 0.8	V
Receiver
Differential Data Output Swing	Vout, pp	400		850	mV	4
LOS Fault	VLOS fault	2.0		VccHOST	V	5
LOS Normal	VLOS norm	Vee		Vee+0.8	V	5

Notes:

1. Measured with receive Pin=Psen, Vcc=3.3V, operation temperature range, without air flow

2. Connected directly to TX data input pins. AC coupled.

3. Or open circuit.

4. Into 100 Ω differential termination.

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

Regulatory Compliance

Feature	Reference	Performance
Electrostatic Discharge (ESD)	IEC/EN 61000‑4‑2	Compatible with standards
Electromagnetic Interference (EMI)	FCC Part 15 Class B EN 55022 Class B (CISPR 22A)	Compatible with standards
Laser Eye Safety	FDA 21CFR 1040.10, 1040.11 IEC/EN 60825‑1, 2	Class 1 laser product
Component Recognition	IEC/EN 60950, UL	Compatible with standards
ROHS	2002/95/EC	Compatible with standards
EMC	EN61000‑3	Compatible with standards