Ascent Communication Technology

10G XFP SR 850 nm 300 m

ASCENT’s XFP-AT-LP-85-03 Small Form Factor 10Gb/s (XFP) transceivers are compliant with the current XFP Multi-Source Agreement (MSA) Specification. They comply with 10-Gigabit Ethernet 10GBASE-SR/SW per IEEE 802.3ae and 10G Fiber Channel 1200-Mx-SN-I.Digital diagnostics functions are available via a 2-wire serial interface, as specified in the XFP MSA.

• Hot-pluggable XFP footprint

• Supports 9.95 Gb/s to 11.3 Gb/s bit rates

• XFI Loopback Mode

• Power dissipation<2W

• RoHS-6 compliant (lead-free)

• Case Temperature range 0 °C to 70 °C

• Maximum link length of 300 m

• Uncooled 850 nm VCSEL laser

• Duplex LC connector

• No Reference Clock required

• Built-in digital diagnostic functions

• Standard bail release mechanism

Absolute Maximum Ratings

Parameter	Symbol	Min	Typ	Max	Unit	Note
Maximum Supply Voltage	Vcc3	‑0.5		4.0	V
Storage Temperature	T_S	‑40		85	°C
Case Operating Temperature	T_case	0		70	°C

Electrical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	Note
Supply Voltage	Vcc3	3.13		3.45	V
Supply Current	Icc3			600	mA
Module Total Power	P			2	W	1
Transmitter
Input Differential Impedance	R_in		100		Ω	2
Differential Data Input Swing	Vin, pp	120		1000	mV
Transmit Disable Voltage	V_D	2.0		Vcc	V	3
Transmit Enable Voltage	V_EN	GND		GND+ 0.8	V
Transmit Disable Assert Time				10	us
Receiver
Differential Data Output Swing	Vout, pp	600	650	800	mV	4
Data Output Rise Time	t_r			40	ps	5
Data Output Fall Time	t_f			40	ps	5
LOS Fault	V_LOS fault	Vcc – 0.5		VccHOST	V	6
LOS Normal	V_LOS norm	GND		GND+0.5	V	6
Power Supply Rejection	PSR					7

Notes:

1. Maximum total power value is specified across the full temperature and voltage range.

2. After internal AC coupling.

3. Or open circuit.

4. Into 100 Ω differential termination.

5. These are unfiltered 20 % to 80 % values

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

7. Per Section 2.7.1. In the XFP MSA Specification1.

Optical Characteristics

Parameter	Symbol	Min	Typ	Max	Unit	Note
Transmitter
Average Optical Power	P_AVE	‑6		‑1.0		1
Optical Wavelength	λ	840	850	860	nm
Optical Extinction Ratio	ER	3.0	5		dB
Transmitter and Dispersion Penalty	TDP			3.9	dB
Average Launch Power of Transmitter	P_OFF			‑30	dBm
Encircled Flux	<4.5μm			30	%	2
Tx Jitter	T_xj	Compliant with 802.3ae requirements
Receiver
Receiver Sensitivity@ 10.5 Gb/s	Psen			‑10	dBm
Input Saturation Power (Overload)	Psat	+0.5			dBm
Wavelength Range	λ_C	840		860	nm
Receiver Reflectance	R_rx			‑12	dB
LOS De‑Assert	LOS_D			‑12	dBm
LOS Assert	LOS_A	‑30			dBm
LOS Hysteresis		0.5			dB

Notes:

1. Average power figures are informative only, per IEEE 802.3ae.

2. Measured into Type A1a (50/125 μm multimode) fiber per ANSI/TIA/EIA‑455‑203‑2.

General Specifications

Parameter		Symbol	Min	Typ	Max	Units	Note
Bit Rate		BR	9.95		11.3	Gb/s	1
Bit Error Ratio		BER			10^‑12		2
Maximum Supported Distances
Fiber Type	850 nm OFL Bandwidth
62.5 μm	160 MHz‑km	Lmax			26	m
62.5 μm	OM1 500 MHz‑km	Lmax			33	m
50 μm	400 MHz‑km	Lmax			66	m
	OM2 500 MHz‑km				82
	OM3 2000 MHz‑km				300

Notes:

1. 10GBASE‑SR/SW, 1200‑Mx‑SN‑I

2. Tested with 10.3 Gbps, 2³¹ – 1 PRBS

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