Ascent Communication Technology

10G SFP+ LR 1310 nm 10 km

ASCENT’s SFPP-ATLP-31-10 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 10 km using 9/125 µm single-mode fiber. The optical output can be disabled by a TTL logic high-level input of Tx Disable, and the system also can disable the module via I2C. Tx Fault is provided to indicate that degradation of the laser. Loss Of signal (LOS) output is provided to indicate the loss of an input optical signal of receiver or the link status with partner. The system can also get the LOS (or Link)/Disable/Fault information via I2C register access.The metal housing ensures low EMI interference standards, with connector retainer.

· Support data rate up to 11.32Gb/s

· Hot-Pluggable SFP Footprint and Dual LC Connector

· Up to 10km reach for G.652 SMF

· 1310nm DFB laser and PINreceiver

· ESD protect

· Low EMI metals

· 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

· Compliant with IEEE802.3ae

Absolute Maximum Ratings

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

Recommended Operating Conditions

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Case Operating Temperature	T_OP			70	°C	Commercial
		-40	-	85		Industrial
Power Supply Voltage	V_CC	3.13	3.3	3.47	V
Data Rate	BR	1.25	10.3125		Gbps
Transmission Distance	TD			10	km
Coupled Fiber	Single-mode fiber					9/125 µm G.652

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

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Supply Voltage	V_CC	3.1		3.5	V
Supply Current (Commercial)	I_CC			300	mA
Supply Current (Industrial)	I_CC			360	mA
Power Consumption (Commercial)	P			1.0	W
Power Consumption (Industrial)	P			1.2	W
Transmitter Section
CML Inputs(Differential)	V_in, pp	180		700	mV
Input Impedance(Differential)	V_DIS	2		V_CC	V
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)	V_out	350		700	mVpp	1
Output Impedance (Differential)	Z_out	90	100	105	Ohm
RX_LOS LOS		2		V_cc+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	V_CC	1.25	10.3125	11.32	Gbps
Transmitter
Center Wavelength	λc	1260	1310	1355	nm
Spectral Width (-20dB)	∆λ			1	nm
Side Mode Suppression Ratio	SMSR	30			dB
Average Output Power	Pout	-8.2		0.5	dBm
Extinction Ratio	ER	3.5			dB
Average Power of OFF Transmitter	Poff			-30	dBm
Relative Intensity Noise	RIN			-128	dB/Hz	2
Receiver
Wavelength Range	λC	1260		1620	nm
Receiver Sensitivity	Pmin			-14.4	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 Case Temperature	Range 0 to +70	Unit °C	Accuracy ±3°C	Calibration 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	-6 to +0	dBm	±3dB	Internal / External
RX Power	-15 to +0.5	dBm	±3dB	Internal / External

Note:
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.	Typical	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	TA,RX_LOS			100	us
Receiver Loss of Signal Deassert Time	Td,RX_LOS			100	us
Rate-Select Chage Time	t_ratesel			10	us
Serial ID Clock Time	t_serial-clock			100	kHz