Ascent Communication Technology

10G SFP+ CWDM 2733 20 km

Ascent’s SFP+ BIDI 10G 20 km transceivers are engineered for high-speed communication applications requiring data rates up to 11.3 Gb/s. Designed for single-fiber operation, they comply with the SFF-8472 SFP+ MSA and support transmission distances up to 20 km over standard G.652 single-mode fiber. The transceivers feature an enhanced digital diagnostic monitoring interface (DDMI) that provides real-time access to key operating parameters, including temperature, laser bias current, transmit power, receive power, and supply voltage. This enables precise link management and early detection of performance degradation. In addition, a built-in system of alarms and warning indicators alerts users when operating conditions deviate from factory-defined thresholds, ensuring stable, predictable performance in demanding network environments.

· Support data rate up to 11.3Gb/s

· Hot-Pluggable SFP Footprint and Single LC Connector

· Up to 20km reach for G.652 SMF

· 1270nm DFB Transmitter and PIN receiver for SFPP-LP-2733-20

· 1330nm DFB Transmitter and PIN receiver for SFPP-LP-3327-20

· Temperature Range:

Commercial: 0°C to +70°C

Industrial: -40°C to +85°C

· Compliant with SFF-8431

· Compliant with SFF-8432

· Compliant with SFF-8472

· Compliant with IEEE802.3ae

Absolute Maximum Ratings

Parameter

Storage Temperature

Symbol

T_s

Min.

-40

Max.

Unit

°C

Maximum Supply Voltage

V_CC

-0.5

3.6

Operating Relative Humidity

Recommended Operating Conditions

Parameter Operating Case Temperature	Symbol T_op	Min. 0	Typ.	Max. +70	Unit °C	Note Commercial
		-40		+85	°C	Industrial
Power Supply Voltage	V_CC	3.13	3.3	3.47	V
Data Rate	BR		10.3125	11.3	Gbps	Data Rate
Transmission Distance	TD			20	km
Coupled Fiber	Single-mode fiber					9/125 µm SMF

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

Parameter	Symbol	Min.	Typ.	Max.	Unit	Notes
Supply Voltage	V_cc	3.135		3.465	V
Supply Current (Commercial)	I_cc			300	mA
Supply Current (Industrial)	I_cc			450	mA
Power Consumption (Commercial)	P			1.0	W
Power Consumption (Industrial)	P			1.5	W
Transmitter
CML Inputs(Differential)	V_in	150		1200	mVpp	1
Input Impedance(Differential)	Z_in	85	100	115	ohm
TX_DIS Disable		2		V_cc+0.3	V
TX_DIS Enable		0		0.8	V
TX_FAULT Fault		2		V_cc+0.3	V
TX_FAULT Normal		0		0.5	V
Receiver
CML Outputs (Differential)	V_out	350		700	mVpp	1
Output Impedance (Differential)	Z_out	85	100	115	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			10.3125	11.3	Gbps
Transmitter
Center Wavelength	λ	1260	1270	1280	nm	SFPP-LP-2733-20
Center Wavelength	λ	1320	1330	1340	nm	SFPP-LP-3327-20
Spectral Width (-20dB)	∆λ			1	nm
Side Mode Suppression Ratio	SMSR	30			dB
Average Output Power	P_out	-6		-1	dBm	1
Extinction Ratio	ER	3.5			dB
Average Power of OFF Transmitter	P_off			-30	dBm
Relative Intensity Noise	R_IN			-128	dB/Hz	2
Wavelength Range	λ_c	1320	1330	1340	nm	SFPP-LP-2733-20
		1260	1270	1280	nm	SFPP-LP-3327-20
Receiver Sensitivity	P_min			-14.4	dBm	3
Receiver Overload	P_max	0.5			dBm
LOS De-Assert	LOS_D			-18	dBm
LOS Assert	LOS_A	-30			dBm
LOS-Hysteresis	Phys	0.5		6	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 2A31-1 at 10.3125Gbps.

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