Ascent Communication Technology

10G XFP BIDI 20KM

ASCENT’s XFP-LP-2733-20 and XFP‑LP‑3327‑ 20 Small Form Factor 10 G (XFP) transceivers are compliant with the current XFP Multi-Source Agreement (MSA) Specification. They feature a 1330 nm or 1270 nm DFB transmitter, and a 1270 nm or 1330 nm receiver. They can carry a 10 Gbps data signal up to 20 km over a 9/125 µm SMF wire. Digital diagnostics functions are available via a 2-wire serial interface, as specified in the XFP MSA. The transceiver is RoHS compliant and lead-free per Directive 2002/95/EC3. 10GBASE-LRLW Ethernet per IEEE 802.3ae and 10G Fiber Channel. SONETOC-192, SDH STM I64.1.1200-SMLL-L 10G Fibre Channel.

· Compliant with XFP MSA

· Operating data rate up to 10 Gbps

· 1330 nm DFB transmitter / 1270 nm receiver or 1270 nm DFB transmitter / 1330 nm receiver

· 20 km with 9/125 µm SMF

· Hot-pluggable XFP footprint single LC connector interface

· Power dissipation<2 W

· Class 1 FDA and IEC60825-1 laser safety compliant

· Operating temperature: Standard: 0 °C to +70 °C, Industrial: -40 °C to +85 °C

· 2-wire interface for integrated Digital Diagnostic Monitoring

· Compliant with SFF-8472

Absolute Maximum Ratings

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

*Exceeding any one of these values may destroy the device.

Recommended Operating Conditions

Parameter Operating Case Temperature	Symbol Tc	Min. 0	Typ.	Max. +70	Unit °C	Note Commercial
		-40		+85	°C	Industrial
Power Supply Voltage	Vcc	3.15	3.3	3.45	V
Power Supply Current	Icc			580	mA
Data Rate			10.3125		Gbps

Optical Characteristics
1330nm DFB and PIN, 20 km

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
9µm Core Diameter SMF			20		km
Data Rate Transmitter Centre Wavelength	λC	1320	9.953/10.3125 1330	1340	Gbps nm
Spectral Width (-20 dB)	∆λ			1	nm
Average Output Power	Pout, AVG	-5		0	dBm	1
Optical Extinction Ratio	ER	3.5			dB
Side Mode Suppression Ratio	SMSR	30			dB
Transmitter and Dispersion Penalty	TDP			2	dB
Average Launch Power of OFF Transmitter	POFF			-30	dBm
Relative Intensity Noise	RIN			-128	dB/Hz
Input Differential Impedance	Zin	90	100	110	Ω
TX Disable Disable		2.0		Vcc+0.3	V
Enable		0		0.8	V
TX Fault Fault		2.0		Vcc+0.3	V
Normal		0		0.8	V
TX Disable Assert Time Receiver Optical Center Wavelength	T_off λC	1260		10 1280	µs nm
Receiver Sensitivity @ 10.7 Gb/s Maximum Input Power	Pmin Pmax	+0.5		-14	dBm dBm
Output Differential Impedance Optical Path Penalty	Pin	90	100	110	Ω	2
LOS Deassert	LOSD		-16		dBm
LOS Assert	LOSA	-28			dBm
LOS-Hysteresis	Phys	0.5			dB

1270 nm DFB and PIN, 20 km

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
9 µm Core Diameter SMF			20		Km
Data Rate Transmitter Centre Wavelength	λC	1260	9.953/10.3125 1270	1280	Gbps nm
Spectral Width (-20 dB)	∆λ			1	nm
Average Output Power	Pout, AVG	-5		0	dBm	1
Optical Extinction Ratio	ER	3.5			dB
Side Mode Suppression Ratio	SMSR	30			dB
Transmitter and Dispersion Penalty	TDP			2	dB
Average Launch Power of OFF Transmitter	POFF			-30	dBm

Relative Intensity Noise	RIN			-128	dB/Hz
Input Differential Impedance	Zin	90	100	110	Ω
TX Disable Disable		2.0		Vcc+0.3	V
Enable		0		0.8	V
TX Fault Fault		2.0		Vcc+0.3	V
Normal		0		0.8	V
TX Disable Assert Time Receiver	T_off			10	µs
Optical Center Wavelength	λC	1320		1340	nm
Receiver Sensitivity @ 10.7Gb/s Maximum Input Power	Pmin Pmax	+0.5		-14	dBm dBm
Output Differential Impedance Optical	Pin	90	100	110	Ω	2
Path Penalty
LOS Deassert	LOSD		-16		dBm
LOS Assert	LOSA	-28			dBm
LOS-Hysteresis	Phys	0.5			dB

Notes:

1. Output power is coupled into a 9/125 μm SMF.

2. Measured with a PRBS 2³¹-1 test pattern @ 10.3125 Gbps, BER ≤10 -12.

Electrical Interface Characteristics

Parameter	Symbol	Min.	Typ.	Max.	Unit	Note
Transmitter Input Differential Impedance	Rin		100
Differential Data Input Swing	Vin,pp	120		820	mV	1
Transmit Disable Voltage	VD	2.0		Vcc	V
Transmit Enable Voltage Transmit Disable Assert Time Receiver Differential Data Output Swing	VEN Vout,pp	GND 340	650	GND+ 0.8 10 850	V µs mV	1
RX Rise time (20 % to 80 %)	tr			38	ps
RX Fall time (20 % to 80 %)	tf			38	ps
LOS Fault	VLOS fault	VCC – 0.5		VccHOST	V	2
LOS Normal	VLOS norm	GND		GND+0.5	V	2

Notes:

1. After internal AC coupling.

2. Loss Of Signal is open collector to be pulled up with a 4.7 kΩ to 10 kΩ resistor to a voltage between 3.15 V and 3.6 V. Logic 0 indicates normal operation; logic 1 indicates no signal detected.