NETGEAR AXM752 - ProSafe XFP Transceiver Module Operation manual

350 E. Plumeria Drive
San Jose, CA 95134-1911 USA
1-888-NETGEAR (638-4327)
E-mail: [email protected]
www.NETGEAR.com
10GBASE-LR XFP
Optical Transceiver
AXM752

AXM752
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10GBASE-LR XFP Optical Transceiver
PbPb
FEAT RES
 Full duplex transmission at 9.95 to 11.08 Gbps
 1310nm Electro Absorption odulated Laser
(E L) light source
 Standard LC duplex fiber-optic connector
 Compliant with IEEE 802.3ae Draft 5.0
 Compliant with XFP SA Rev. 4.0
 I
2
C for integrated Digital Optical onitoring
 Power consumption <2.5 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
 Temperature range 0°C - 70°C
Description
The AX 752 is a hot pluggable 10Gbps
small-form-factor transceiver module integrated
with the high performance un-cooled 1310nm
E L-based transmitter, high sensitivity PIN
receiver and signal conditioner for 10Gbps
Ethernet applications that support link-distance
up to 10km over standard S F. It is compliant
with the 10Gbps Ethernet IEEE 802.3ae
standard and the INF-8077i XFP ulti-source
Agreement ( SA).
The AX 752 is designed to be compliant with
INF-8077i XFP ulti-source Agreement ( SA)
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
 10 Gigabit FC 10.5 Gb/s
 10 Gigabit Ethernet 10.3 Gb/s
Performance
 AX 752 data link up to 10km in 9/125um single
mode fiber.

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1. Absolute Maximum Ratings
Parameter Symbol Min Typ Max nits Notes
Storage Temperature T
S
-40 85 °C
Storage Ambient Humidity
H
A
5 90 %
+5V Power Supply V
CC5
0 6.0 V
+3.3V Power Supply V
CC3
0 3.6 V
2. Recommended Operating Conditions
Parameter Symbol Min Typ Max nits Notes
Operating Case
Temperature
T
C
0 70 °C
Ambient Humidity
H
A
5 85 % [1]
+3.3V Power Supply V
CC3
3.135 3.3 3.465 V
+5V Power Supply V
CC5
4.75 5 5.25 V
+3.3V Supply Current I
VCC3
300 500 mA
+5V Supply Current I
VCC5
200 250 mA
Total Power Dissipation P
D
2.0 2.5 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
[4]
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
ASIC / SerDes
XFP
ASIC / SerDes
XFP
10Gbps optical signal 10Gbps XFI electrical signal 10Gbps XFI electrical signal
Application Block Diagram

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3. Optical Transmitter Characteristics (T
C
=0 ºC to 70 ºC)
Parameter Symbol Min Typ Max nits Notes
Signaling speed (nominal)
R 10.3125 Gb/s
Signaling speed variation
from nominal ±100 ppm
Center Wavelength λ 1260 1355 nm
Side ode Suppression
Ratio S SR 30 dB
Optical odulaion
Amplitude
O A -5.2 dBm
Extinction Ratio ER 3.5 dB
Transmitter eye mask definition
{X1, X2, X3, Y1, Y2, Y3} {0.25, 0.40, 0.45, 0.25, 0.28, 0.40}
Notes:
1. Even if the TDP < 1 dB, the O A (min) must exceed this value.
Transmitter eye mask definition
4. Optical Receive Characteristics
(T
C
=0 ºC to 70 ºC)
Parameter Symbol Min Typ Max nits Notes
Signaling speed (nominal)
Ts 10.3125 Gb/s
Signaling speed variation
from nominal ±100 ppm
Center Wavelength λ 1260 1355 nm
Overload P
O
0.5 dBm
Receiver sensitivity in
O A RSO -12.6 dBm [1]
LOS De-assert LOS
D
-18 dBm
LOS Assert LOS
A
-30 dBm
Notes:
1. easured with test signal for BER = 10
-12
.

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5. XFI Module Receiver Output Jitter Specifications at C’
Parameter – C’ Symbol Min Typ Max nits Notes
Deterministic Jitter DJ 0.18 UI (p-p) [1]
Total Jitter TJ 0.34 UI (p-p) [1]
X1 0.17 UI
X2 0.42 UI
Y1 170 mV
Eye ask
Y2 425 mV
Notes:
1. Includes jitter transferred from the optical receiver during any valid operational input condition.
XFI Module Receiver Differential Output Compliance Mask
XFI Termination and AC Coupling

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6. Pin Description
XF Host Board Connector ad Layout (Top View)
Recommended Host Board Supply Filtering Network

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Module Electrical in Function Definition
Pin
Logic Symbol Name/Description Note
1 GND odule Ground
2 VEE5 Optional -5.2V Power Supply --Not Required
3 LVTTL-I od_DeSel odule De-select; When held low allows module to respond to
2-wire serial interface
4 LVTTL-O Interrupt Bar
Interrupt Bar; Indicates presence of an important condition
which can be read over the 2-wire serial interface [1]
5 LVTTL-I TX_DIS Transmitter Disable; Turns off transmitter laser output
6 VCC5 +5V Power Supply
7 GND odule Ground
8 VCC3 +3.3V Power Supply
9 VCC3 +3.3V Power Supply
10
LVTTL-I/O SCL 2-Wire Serial Interface Clock [1]
11
LVTTL-I/O SDA 2-Wire Serial Interface Data Line [1]
12
LVTTL-O od_Abs Indicates odule is not present. Grounded in the odule [1]
13
LVTTL-O od_NR odule Not Ready; Indicating odule Operational Fault [1]
14
LVTTL-O RX_LOS Receiver Loss Of Signal Indicator [1]
15
GND odule Ground
16
GND odule Ground
17
C L-O RD- Receiver Inverted Data Output
18
C L-O RD+ Receiver Non-Inverted Data Output
19
GND odule Ground
20
VCC2 +1.8V Power Supply --Not Required
21
LVTTL-I P_Down/RST
Power down; When high, requires the module to limit power
consumption to 1.5W or below. 2-Wire serial interface must be
functional in the low power mode.
22
VCC2 +1.8V Power Supply --Not Required
23
GND odule Ground
24
PECL-I RefCLK-
Reference Clock Non-Inverted Input, AC coupled on the host board,
Not required
25
PECL-I RefCLK+
Reference Clock Inverted Input, AC coupled on the host board,
Not required
26
GND odule Ground
27
GND odule Ground
28
C L-I TD- Transmitter Inverted Data Input
29
C L-I TD+ Transmitter Non-Inverted Data Input
30
GND odule Ground
Notes:
1. odule ground pins Gnd are isolated from the module case and chassis ground within the module.
2. Shall be pulled up with 4.7K-10Kohms to a voltage between 3.15V and 3.45V on the host board.

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7. Low Speed Electrical Hardware Pins
In addition to the 2-wire serial interface the XFP module has the following low speed pins for control and status:
‧ od_NR
‧ od_DeSel
‧ Interrupt
‧ TX_DIS
‧ od_ABS
‧ RX_Los
‧ P_Down/RST.
1 MOD_NR
The od_NR is an output pin that when High, indicates that the module has detected a condition that renders
transmitter and or receiver data invalid, shall consist of logical OR of the following signals:
‧ Transmit Signal Conditioner Loss of Lock
‧ Transmitter Laser Fault
‧ Receiver Signal Conditioner Loss of Lock
2 MOD_DESEL
The od_DeSel is an input pin. When held Low by the host, the module responds to 2-wire serial communication
commands. The od_DeSel allows the use of multiple XFP modules on a single 2-wire interface bus.
When the od_DeSel pin is “High”, the module shall not respond to or acknowledge any 2-wire interface
communication from the host. od_DeSel pin must be pulled to VCC3 in the module.
In order to avoid conflicts, the host system shall not attempt 2-wire interface communications within the od_DeSel
assert time after any XFP modules are deselected. Similarly, the host must wait at least for the period of the
od_DeSel deassert time before communicating with the newly selected module. The assertion and de-assertion
periods of different modules may overlap as long as the above timing requirements are met.
3 INTERR PT
Interrupt is an output pin. When “Low”, indicates possible module operational fault or a status critical to the host
system. The Interrupt pin is an open collector output and must be pulled up to Host_Vcc the host board.
4 TX_DIS
TX_DIS is an input pin. When TX_DIS is asserted High, the XFP module transmitter output must be turned off. The
TX_DIS pin must be pulled up to VCC3 in the XFP module.
5 MOD_ABS
od_ABS is pulled up to Host_Vcc on the host board and grounded in the XFP module. od_ABS is then asserted
“High” when the XFP module is physically absent from a host slot.
6 RX_LOS
The RX_LOS when High indicates insufficient optical power for reliable signal reception. The RX_LOS pin is an open
collector output and must be pulled up to Host_Vcc on the host board.

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7 P_DOWN/RST
This is a multifunction pin for module Power Down and Reset. The P_Down/RST pin must be pulled up to VCC3 in the
XFP module.
7.1 POWER DOWN F NCTION
The P_Down pin, when held High by the host, places the module in the standby (Low Power) mode with a maximum
power dissipation of 1.5W.
7.2 RESET F NCTION
The negative edge of P_Down/RST signal initiates a complete module reset.
Notes:
3. Shall be pulled up with 4.7K-10Kohms to a voltage between 3.15V and 3.45V on the host board.

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8. Memory Map of Management Interface
The lower memory table (Byte 0~127) is for digital diagnostics and control functions. Besides, it has
been allocated three upper memory tables for serial ID, user writable and vendor specific functions. The
detail memory content is listed as following table.

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9. EEPROM Serial ID Memory Contents (2-Wire Address A0h)
Address Hex ASCII Address Hex ASCII Address Hex ASCII
128 06 171 37 7 214 DC
129 50 172 35 5 215 DC
130 07 173 32 2 216 DC
131 40 174 20 217 DC
132 00 175 20 218 DC
133 00 176 20 219 DC
134 00 177 20 220 08
135 00 178 20 221 60
136 00 179 20 222 67
137 00 180 20 223 Note 4
138 00 181 20 224 VS Note 5
139 90 182 20 225 VS
140 64 183 20 226 VS
141 68 184 41 227 VS
142 0A 185 20 228 VS
143 00 186 66 3 229 VS
144 00 187 58 230 VS
145 00 188 0F 231 VS
146 00 189 A0 232 VS
147 60 190 46 233 VS
148 4E N 191 Note 1 234 VS
149 45 E 192 7D 235 VS
150 54 T 193 96 236 VS
151 47 G 194 55 237 VS
152 45 E 195 00 238 VS
153 41 A 196 SN Note 2 239 VS
154 52 R 197 SN 240 VS
155 20 198 SN 241 VS
156 20 199 SN 242 VS
157 20 200 SN 243 VS
158 20 201 SN 244 VS
159 20 202 SN 245 VS
160 20 203 SN 246 VS
161 20 204 SN 247 VS
162 20 205 SN 248 VS
163 20 206 SN 249 VS
164 C1 207 SN 250 VS
165 00 208 SN 251 VS
166 06 209 SN 252 VS
167 6E 210 SN 253 VS
168 41 A 211 SN 254 VS
169 58 X 212 DC Note 3 255 VS
170 4D 213 DC
Notes:
1) CC_BASE : Check code for Base ID Fields (address 120~190)
2) Vendor SN (address 196–211)
3) Date Code (address 212–219)
4)
CC_EXT : Check code for Extended ID Fields (address 192~222)
5) Address 224~255 is reserved for vendor specific EEPRO

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10. Digital Diagnostic Monitoring Interface
Alarm and Warning Thresholds (2-Wire Address A0h)
Address
#
Bytes
Name Value (Dec.) nit
01 1 Signal Conditioner Control
02–03 2 Temp High Alarm 90
04–05 2 Temp Low Alarm -10
06–07 2 Temp High Warning 85
08–09 2 Temp Low Warning -5
℃
10–17 8 Reserved
18–19 2 Bias High Alarm
Iop+60 mA
20–21 2 Bias Low Alarm
Iop-25 mA
22–23 2 Bias High Warning
Iop+55 mA
24–25 2 Bias Low Warning
Iop-20 mA
mA
26–27 2 TX Power High Alarm P+3
28–29 2 TX Power Low Alarm P–3
30–31 2 TX Power High Warning P+2
32–33 2 TX Power Low Warning P–2
dBm
34–35 2 RX Power High Alarm -3
36–37 2 RX Power Low Alarm -23
38–39 2 RX Power High Warning -5
40–41 2 RX Power Low Warning -21
dBm
42–43 2 AUX 1 High Alarm 5.5
44–45 2 AUX 1 Low Alarm 4.5
46–47 2 AUX 1 High Warning 5.3
48–49 2 AUX 1 Low Warning 4.7
Volt
50–51 2 AUX 2 High Alarm 3.6
52–53 2 AUX 2 Low Alarm 3.0
54–55 2 AUX 2 High Warning 3.5
56–57 2 AUX 2 Low Warning 3.1
Volt
96 1 Temperature SB
97 1 Temperature LSB
98–99 10 Reserved
100 1 TX Bias SB
101 1 TX Bias LSB
102 1 TX Power SB
103 1 TX Power LSB
104 1 RX Power SB
105 1 RX Power LSB
106 1 AUX 1 SB(5V)
107 1 AUX 1 LSB (5V)
108 1 AUX 2 LSB (3.3V)
109 1 AUX 2 LSB (3.3V)
Notes:
1) P: Operating optical power of transmitter at room temperature
2) Iop: Operating bias current of transmitter at room temperature

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General State/ Control Bits
Byte Bit Name Description
1 0 Signal Conditioner Control Default value of this bit is 0
1 1 XFI Loopback XFI loopback enable when this bit set to 1
1 2 Lineside Loopback Not Implement
1 4-7 Data Rate Control Default setting is 10.3Gbps
110 7 Tx Disable State Digital state of the Tx disable input pin
110 6 Optional Soft TX Disable Read/ Write bit that allow software disable of laser
110 5 OD_NR State Digital state of odule Not Ready
110 4 P-Down State Digital state Power Down
110 3 Soft P_Down Software Power Down
110 2 Interrupt
_____________
Interrupt Bar State
110 1 LOS Digital state of the LOS output pin.
110 0 Data_Not_Ready Digital state of Data_Not_Ready
111 7 TX_NR State Digital state of Tx Not Ready State
111 6 TX_Fault State Digital state of Tx Fault State
111 5 TX_CDR not Locked Digital state of Tx CDR not Locked
111 4 RX_NR State Digital state of Rx Not Ready
111 3 RX_CDR not Locked Digital state of Rx CDR not Locked
119–122
All New Password Entry Location for Entry of New Optional Password
123–126
All Password Entry Location for Entry of Optional Password
127 All Table Select Entry Location for Table Select Byte
Optional Set of Alarm and Warning
Byte Bit Name Description
80 7 Temp High Alarm Set when internal temperature exceeds high alarm level
80 6 Temp Low Alarm Set when internal temperature is below low alarm level
80 5 Reserved
80 4 Reserved
80 3 Tx Bias High Alarm Set when Tx Bias current exceeds high alarm level
80 2 Tx Bias Low Alarm Set when Tx Bias current is below low alarm level
80 1 Tx Power High Alarm Set when Tx output power exceeds high alarm level
80 0 Tx Power Low Alarm Set when Tx output power is below low alarm level
81 7 Rx Power High Alarm Set when received power exceeds high alarm level
81 6 Rx Power Low Alarm Set when received power is below low alarm level
81 5 AUX1 High Alarm Set when internal 5V supply voltage exceeds high alarm level
81 4 AUX1 Low Alarm Set when internal 5V supply voltage is below low alarm level
81 3 AUX2 High Alarm Set when internal 3.3V supply voltage exceeds high alarm
level
81 2 AUX2 Low Alarm Set when internal 3.3V supply voltage is below low alarm
level
81 1 Reserved
81 0 Reserved
82 7 Temp High Warning Set when internal temperature exceeds high warning level
82 6 Temp Low Warning Set when internal temperature is below low warning level
82 5 Reserved
82 4 Reserved
82 3 Tx Bias High Warning Set when Tx Bias current exceeds high warning level
82 2 Tx Bias Low Warning Set when Tx Bias current is below low warning level
82 1 Tx Power High Warning Set when Tx output power exceeds high warning level
82 0 Tx Power Low Warning Set when Tx output power is below low warning level

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83 7 Rx Power High Warning Set when received power exceeds high warning level
83 6 Rx Power Low Warning Set when received power is below low warning level
83 5 AUX1 High Warning Set when internal 5V supply voltage exceeds high warning
level
83 4 AUX1 Low Warning Set when internal 5V supply voltage is below low warning
level
83 3 AUX2 High Warning Set when internal 3.3V supply voltage exceeds high warning
level
83 2 AUX2 Low Warning Set when internal 3.3V supply voltage is below low warning
level
83 1 Reserved
83 0 Reserved

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11. Mechanical Outline Dimensions
Transmitter Wavelength / Application
Latch Color Identifier
1310nm / LR Blue
Single Mode/1310nm 10Gbps
10GBase-LR up to 10km
Class 1 Laser Product
XM752
272-10320-02
Complies with
21 CFR 1040.10
and 1040.11
Made in Taiwan
R

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11. Regulatory Compliance
Feature Reference Performance
Electromagnetic Interference
(E I)
FCC CRF 47, Part15 Class B
EN 55022 Class B (CISPR 22A)
Radio Frequency
Electromagnetic Field
EN 61000-4-3
IEC 61000-4-3
Electrostatic Discharge to the
Duplex LC Receptacle
EN 61000-4-2
IEC 61000-4-2
IEC 801.2
Electrostatic Discharge to the
Electrical Pins IL-STD-883E ethod 3015.7
Eye Safety US FDA CDRH AEL Class 1
(1) Satisfied with electrical
characteristics of product
spec.
(2) No physical damage
Component Recognition
Underwriters Laboratories and
Canadian Standards Association Joint
Component Recognition for Information
Technology Equipment Including
Electrical Business Equipment
UL File # E239394

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Appendix A. Document Revision
Version No.
Date Description
S0 2006-04-25 Preliminary datasheet for RoHS version
S1 2006-08-25 Update Digital Diagnostic emory ap contents
S2 2007-10-02 odify the dimension of label
0A 2007-11-09 odify the Byte 165~167 of A0h

© 2008 NETGEAR, Inc. NETGEAR, the NETGEAR Logo, NETGEAR Digital Entertainer Logo, Connect with Innovation,
FrontView, IntelliFi, PowerShift, ProSafe, RAIDar, RAIDiator, X-RAID, RangeMax, ReadyNAS and Smart Wizard are trademarks of
NETGEAR, Inc. in the United States and/or other countries. Other brand names mentioned herein are for identification purposes
only and may be trademarks of their respective holder(s). Information is subject to change without notice. All rights reserved.
D-AXM752-0