Netgear AXM751 Data Sheet
10GBASE-SR XFP
Optical Transceiver
AXM751
350 E. Plumeria Drive
San Jose, CA 95134-1911 USA
1-888-NETGEAR (638-4327)
E-mail: info@NETGEAR.com
www.NETGEAR.com
AXM751
10GBASE-SR XFP Optical Transceiver
FEATURES
RoHS compliant
850nm Vertical Cavity Surface Emitting Laser
(VCSEL) light source
Standard LC duplex fiber-optic connector
Compliant with XFP MSA
2
I
C for integrated Digital Optical Monitoring
Power consumption <1.37 W
User friendly Plug-and-play style "Hot Swap"
Small footprint which enables high board
density
XFI high speed I/O electrical interface
Integrated signal conditioner to extend
200mm FR4 PCB trace signaling
Description
The AXM751 is a hot pluggable 10Gbps
small form factor transceiver module integrated
with the high performance 850nm VCSEL
transmitter, high sensitivity PIN receiver and
signal conditioner for 10Gbps applications. It is
compliant with the INF-8077i XFP Multi-source
Agreement (MSA).
The AXM751 is designed to be compliant
with INF-8077i XFP Multi-source Agreement
(MSA) with five digital monitoring functions:
Temperature, Vcc, Tx optical power, TX laser
bias current and RX received optical power.
Application
10G LAN switch
10G Ethernet switch/router
10G Fiber channel
SAN applications
1 Revision: S3.0
Ambient Humidity
AXM751
1. Absolute Maximum Ratings
Parameter Symbol Min Typ Max Units Notes
Storage Temperature TS -40 85 °C
Storage Ambient Humidity
+5V Power Supply V
+3.3V Power Supply V
HA 5 90 %
0 6.0 V
CC5
0 3.6 V
CC3
2. Recommended Operating Conditions
Parameter Symbol Min Typ Max Units Notes
Operating Ambient
Temperature
T
0 70 °C
A
HA 5 85 % [1]
+3.3V Power Supply V
+5V Power Supply V
+3.3V Supply Current I
+5V Supply Current I
3.135 3.3 3.465 V
CC3
4.75 5 5.25 V
CC5
270 350 mA
VCC3
10 30 mA
VCC5
Total Power Dissipation PD 1.37 W
Differential TX Data Input TD+ - TD- 150 500 1000 mVp-p
[2,3]
Differential RX Data Output RD+ - RD- 500 650 800 mVp-p
Notes:
1. Non-condensing
2. The data rate of input data is 10.3125Gb/s
3. Input voltage swing (differential) measured peak-to-peak
4. Output voltage swing (differential) measured peak-to-peak
[4]
ASIC / SerDes
XFP
10Gbps optical signal 10Gbps XFI electrical signal 10Gbps XFI electrical signal
Application Block Diagram
2 Revision: S3.0
XFP
ASIC / SerDes
Average Output Power
0.05
0.1
0.15
0.2
0.25
0.3
0.35
0.4
0.45
3. Optical Transmitter Characteristics
(TA=0 ºC to 70 ºC)
AXM751
Parameter Symbol
Data Rate R 10.3125 Gb/s
Signaling speed variation from
nominal
P
Wavelength
Spectral Width RMS 0.45 nm
Transmitter OFF Output Power P
Extinction Ratio ER 3.0 dB
Optical Modulaion Amplitude OMA Compliant with Minimum OMA relation table dBm
Relative Intensity Noise
Optical Return Loss Tolerance
Transmitter eye mask definition
{X1, X2, X3, Y1, Y2, Y3}
-5 -1.8 dBm
avg
λ
off
RIN12OMA
ORLT
Min Typ Max Units Notes
±100
840 860 nm
-30 dBm
-128
12
{0.25, 0.40, 0.45, 0.25, 0.28, 0.40}
Transmitter eye mask definition
ppm
dB/Hz
dB
Minimum optical modulation amplitude (dBm) relation table
Center
Wavelength
Up to
0.05 to
0.1 to
RMS Specrtal width (nm)
0.15 to
0.2 to
0.25 to
0.3 to
0.35 to
(nm)
840 to 842 -4.2 -4.2 -4.1 -4.1 -3.9 -3.8 -3.5 -3.2 -2.8
842 to 844 -4.2 -4.2 -4.2 -4.1 -3.9 -3.8 -3.6 -3.3 -2.9
844 to 846 -4.2 -4.2 -4.2 -4.1 -4.0 -3.8 -3.6 -3.3 -2.9
846 to 848 -4.3 -4.2 -4.2 -4.1 -4.0 -3.8 -3.6 -3.3 -2.9
848 to 850 -4.3 -4.2 -4.2 -4.1 -4.0 -3.8 -3.6 -3.3 -3.0
850 to 852 -4.3 -4.2 -4.2 -4.1 -4.0 -3.8 -3.6 -3.4 -3.0
852 to 854 -4.3 -4.2 -4.2 -4.1 -4.0 -3.9 -3.7 -3.4 -3.1
854 to 856 -4.3 -4.3 -4.2 -4.1 -4.0 -3.9 -3.7 -3.4 -3.1
856 to 858 -4.3 -4.3 -4.2 -4.1 -4.0 -3.9 -3.7 -3.5 -3.1
858 to 860 -4.3 -4.3 -4.2 -4.2 -4.1 -3.9 -3.7 -3.5 -3.2
Triple tradeoff curve
3 Revision: S3.0
0.4 to
12
10
−
AXM751
4. Optical Receive Characteristics
Parameter Symbol Min Typ Max Units Notes
Signaling speed (nominal) Ts 10.3125 Gb/s
Signaling speed variation from
nominal
Center Wavelength
Overload PO -1 dBm
Receiver sensitivity in OMA RSO -11.1 dBm [1]
LOS De-assert LOSD -13 dBm
LOS Assert LOSA -30 dBm [2]
LOS Hysteresis
Receiver Reflectance
Stressed Receive sensitivity
OMA
Notes:
1. Measured by reference TX with 4.75dB extinction ratio at
2. When LOS asserted, the data output is Low-level (fixed)
3. When the terminal is viewed from the optical path, the reflection toward the optical path of the optical
signal with a central wavelength of 840nm to 860nm transmitted to terminal.
LOS
(TA=0 ºC to 70 ºC)
λ
–LOS
D
840 860 nm
0.5
A
BER
±100
-12
-7.5
ppm
dB
dB
dBm
[3]
5. XFI Module Receiver Output Jitter Specifications at C’
Parameter – C’ Symbol Min Typ Max Units Notes
4 Revision: S3.0
Deterministic Jitter DJ 0.18 UI (p-p) [1]
Total Jitter TJ 0.34 UI (p-p) [1]
X1 0.17 UI
Eye Mask
Notes:
1. Includes jitter transferred from the optical receiver during any valid operational input condition.
XFI Module Receiver Differential Output Compliance Mask
X2 0.42 UI
Y1 170 mV
Y2 425 mV
AXM751
XFI Termination and AC Coupling
5 Revision: S3.0
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