Ascent Communication Technology

10G SFP+ LR 1310 nm 40 km

ASCENT’s SFP+ transceiver SFPP-ATLP-31-40 is designed for use in 10-Gigabit Ethernet links up to 40km over single mode fiber. The module consists of 1310 DFB Laser, 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. The 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.

· Support data rate up to 11.3Gb/s

· Hot-Pluggable SFP Footprint and Duplex LC Connector

· Up to 40km reach for G.652 SMF

· 1310nm DFB laser and PIN receiver

· Temperature Range:

Commercial: 0°C to +70°C

Industrial: -40°C to +85°C

· Compliant with SFP-8431

· Compliant with SFP-8432

· Compliant with SFP-8472

Absolute Maximum Ratings

Parameter	Symbol	Min.	Max.	Unit
Storage Temperature	T_s	-40	+85	°C
Maximum Supply Voltage	V_CC	-0.5	3.6	V
Operating Relative Humidity	RH		95	V

Recommended Operating Conditions

Parameter Case Operating Temperature	Symbol T_op	Min. 0	Typ.	Max. +70	Unit °C	Note Commercial
Parameter Case Operating Temperature		-40		+85	°C	Industrial
Power Supply Voltage	V_CC	3.13	3.3	3.47	V
Data Rate	BR	1.25	10.3125	11.3	Gbps
Transmission Distance	T_D			40	km
Coupled fiber	Single-mode fiber					9/125 µm SMF

Electrical Characteristics (TOP = Tc, Vcc = 3.135 to 3.465 Volts)

Parameter Transmitter	Symbol	Min	Typ	Max	Unit	Notes
Supply Voltage	Vcc	3.135		3.465	V
Supply Current	Icc			300	mA
Power Consumption	P			1.0	W
Transmitter Section
CML Inputs(Differential)	Vin	190		700	mVpp	1
Input Impedance(Differential)	Zin	90	100	105	ohm
TX_DIS Disable		2		Vcc+0.3	V
TX_DIS Enable		0		0.8	V
TX_FAULT Fault		2		Vcc+0.3	V
TX_FAULT Normal		0		0.5	V
Receiver Section
CML Outputs (Differential)	Vout	350		700	mVpp	1
Output Impedance (Differential)	Zout	90	100	105	Ohm
RX_LOS LOS		2		Vcc+0.3	V	2
RX_LOS Normal		0		0.8	V	2
MOD_DEF ( 0:2 ) VoH		2.5			V	With Serial ID
MOD_DEF ( 0:2 ) VoL		0		0.5	V	With Serial ID

Notes:

1. CML logic, internally AC coupled.

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

Optical Characteristics

Parameter	Symbol	Min.	Typ.	Max	Unit	Note
Data Rate			10.3125	11.3	Gbps
Transmitter
Center Wavelength	λ_c	1260	1310	1355	nm
Spectral Width (-20dB)	∆λ			1	nm
Side Mode Suppression Ratio	SMSR	30			dB
Average Output Power	P_out	-1		5	dBm	1
Extinction Ratio	ER	4			dB
Average Power of OFF Transmitter	P_off			-30	dBm
Relative Intensity Noise	RIN			-128	dB/Hz	2
Receiver
Wavelength Range	λ_C	1260		1620	nm
Receiver Sensitivity	Pmin			-16	dBm	3
Receiver Overload	Pmax	0.5			dBm
LOS De-Assert	LOSD			-16	dBm
LOS Assert	LOSA	-30			dBm
LOS-Hysteresis	Phys	0.5		5	dB

Notes:

1. Output is coupled into a 9/125um SMF.

2. 12dB reflection.

3. Measured with worst ER, BER less than 1E-12 and PRBS 2^³¹-1 at 10.3125 Gbps.

Digital Diagnostic Functions

Parameter	Range	Unit	Accuracy	Calibration
Commercial Temperature	0 to +70	°C	±3°C	Internal / External
Industrial Temperature	-30 to +85	°C	±3°C	Internal / External
Voltage	3.0 to 3.6	V	±3%	Internal / External
Bias Current	10 to 100	mA	±10%	Internal / External
TX Power	-1 to +4	dBm	±3dB	Internal / External
RX Power	-15 to +0.5	dBm	±3dB	Internal / External

Note:

1. The transceivers provide serial ID memory contents and diagnostic information about the present

operating conditions by the 2-wire serial interface (SCL, SDA). The diagnostic information with internal

calibration or external calibration all are implemented, including received power monitoring, transmitted

power monitoring, bias current monitoring, supply voltage monitoring and temperature monitoring.

Timing Characteristics

Parameter	Symbol	Min.	Typ.	Max.	Unit
TX_Disable Assert Time	t_off			100	us
TX_Disable Negate Time	t_on			2	ms
Time to Initialize Include Reset of TX_FAULT	t_int			300	ms
TX_FAULT from Fault to Assertion	t_fault			100	us
TX_Disable Time to Start Reset	t_reset	10			us
Receiver Loss of Signal Assert Time	T_A, RX_LOS			100	us
Receiver Loss of Signal Deassert Time	T_d, RX_LOS			100	us
Rate-Select Change Time	t_ratesel			10	us
Serial ID Clock Time	t_serial-clock			100	kHz