The TRXAG1VXIxMS SFP fiber optic transceivers with
integrated digital diagnostics monitoring functionality offer
a quick and reliable interface for Gigabit Ethernet
applications. The diagnostic functions, alarm and
warning features as described in the Multi-Source
Agreement (MSA) document, SFF-8472 (Rev. 9.4), are
provided via an I
2
C serial interface.
The transceivers use a high power 1550nm DFB laser and
an ultra high sensitivity Avalanche Photodiode (APD)
receiver to provide a minimum optical link power budget
of 32dB, corresponding to a transmission distance of
around 120km of single mode fiber (assuming a total
connector and splice loss of 2dB, total system penalty of
3dB and fiber loss of 0.22dB/km). The transceivers satisfy
Class I Laser Safety requirements in accordance with the
U.S. FDA/CDRH and international IEC-60825 standards.
The TRXAG1VXIxMS transceivers connect to standard
20-pad SFP connectors for hot plug capability. This allows
the system designer to make configuration changes or
maintenance by simply plugging in different types of
transceivers without removing the power supply from the
host system.
The transceivers have colored bail-type latches, which offer
an easy and convenient way to release the modules. The
latch is compliant with the SFP MSA.
The transmitter and receiver DATA interfaces are AC-
coupled internally. LV-TTL Transmitter Disable control
input and Loss of Signal output interfaces are also provided.
The transceivers operate from a single +3.3V power supply
over an operating case temperature range of -5°C to +70°C
(“B” option) or -5°C to +85°C (“E” option). The housing
is made of metal to enhance EMI protection.
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Case Temperature
1
Supply Voltage
Maximum Input Optical Power (30 seconds max.)
Input Voltage
Lead Terminal Finish, Reflow Profile Limits and MSL
1
Symbol
T
st
"B" option
"E" option
T
op
V
CC
-
V
in
-
Minimum
- 40
-5
-5
0
-
0
-
Maximum
+ 85
+ 70
+ 85
+ 5.0
+ 3.0
V
CC
NA
Units
°C
°C
V
dBm
V
-
Measured on top side of SFP module at the front center vent hole of the cage.
Optical Communication Products, Inc.
1
21737-0934, Rev. A
04-19-2006
TRXAG1VXIxMS
Transmitter Performance Characteristics
(over Operating Case Temperature,
V
CC
= 3.13 to 3.47V)
All parameters are guaranteed only at typical data rate
Parameter
Operating Data Rate
1
Optical Output Power
Center Wavelength
Spectral Width (-20dB)
Side Mode Suppression Ratio
Extinction Ratio
Deterministic Jitter
Total Jitter
Dispersion Penalty
2
Transmitter Output Eye
1
2
Symbol
B
P
o
λ
c
∆λ
20
SMSR
P
hi
/P
lo
DJ
TJ
-
Minimum
-
0
1500
-
30
9
-
-
-
Typical
1250
-
1550
-
-
-
-
-
-
Maximum
-
+ 5.0
1580
1.0
-
-
80
227
2.0
Units
Mb/s
dBm
nm
nm
dB
dB
ps
ps
dB
Compliant with Eye Mask Defined in IEEE 802.3z Standard
Data rate ranges from 125Mb/s to 1300Mb/s. However, some degradation may be incurred in overall performance.
Specified at 2400ps/nm dispersion, which corresponds to the approximate worst-case dispersion for 120km G.652 fiber respectively over
the wavelength range of 1500 to 1580nm.
Receiver Performance Characteristics
(over Operating Case Temperature,
V
CC
= 3.13 to 3.47V)
All parameters are guaranteed only at typical data rate
Parameter
Operating Data Rate
1
-12
-12
Symbol
B
BER)
2
2
Minimum
-
- 32.0
- 10.0
-
- 45.0
-
-
0.5
-
-
1100
12
-
Typical
1250
- 35.0
-
-
-
-
-
-
-
-
-
-
-
Maximum
-
-
-
- 32.0
-
100
100
-
170
266
1600
-
1500
Units
Mb/s
dBm
dBm
dBm
µs
dB
ps
ps
nm
dB
MHz
Minimum Input Optical Power (10
P
min
P
max
P
los+
P
los-
t_loss_off
t_loss_on
-
DJ
TJ
λ
ORL
-
Maximum Input Optical Power (10
LOS Thresholds
LOS Timing Delay
LOS Hysteresis
Deterministic Jitter
Total Jitter
Wavelength of Operation
Optical Return Loss
BER)
Increasing Light Input
Decreasing Light Input
Increasing Light Input
Decreasing Light Input
Electrical 3dB Upper Cutoff Frequency
1
2
Data rate ranges from 125Mb/s to 1300Mb/s. However, some degradation may be incurred in overall performance.
Measured with 2
7
-1 PRBS at 1250Mb/s and 1550nm wavelength.
Laser Safety:
All transceivers are Class I Laser products
per FDA/CDRH and IEC-60825 standards. They must be
operated under specified operating conditions.
Optical Communication Products, Inc.
DATE OF MANUFACTURE:
MANUFACTURED IN THE USA
This product complies with
21 CFR 1040.10 and 1040.11
Meets Class I Laser Safety Requirements
2
21737-0934, Rev. A
04-19-2006
TRXAG1VXIxMS
Transmitter Electrical Interface
(over Operating Case Temperature,
V
CC
= 3.13 to 3.47V)
Parameter
Input Voltage Swing (TD+ & TD-)
1
Input HIGH Voltage (TX DISABLE)
2
Input LOW Voltage (TX DISABLE)
2
Output HIGH Voltage (TX FAULT)
3
Output LOW Voltage (TX FAULT)
3
1
2
Symbol
V
PP-DIF
V
IH
V
IL
V
OH
V
OL
Minimum
0.35
2.0
0
2.0
0
Typical
-
-
-
-
-
Maximum
1.75
V
CC
0.8
V
CC
+ 0.3
0.8
Units
V
V
V
V
V
Differential peak-to-peak voltage.
There is an internal 4.7 to 10kΩ pull-up resistor to
VccT.
3
Open collector compatible, 4.7 to 10kΩ pull-up resistor to
Vcc
(Host Supply Voltage).
Receiver Electrical Interface
(over Operating Case Temperature,
V
CC
= 3.13 to 3.47V)
Parameter
Output Voltage Swing (RD+ & RD-)
1
Output HIGH Voltage (LOS)
2
Output LOW Voltage (LOS)
2
1
2
Symbol
V
PP-DIF
V
OH
V
OL
Minimum
0.4
V
CC
- 1.3
0
Typical
-
-
-
Maximum
1.75
V
CC
+ 0.3
0.5
Units
V
V
V
Differential peak-to-peak voltage across external 100Ω load.
Open collector compatible, 4.7 to 10kΩ pull-up resistor to
Vcc
(Host Supply Voltage).
Electrical Power Supply Characteristics
(over Operating Case Temperature,
V
CC
= 3.13 to 3.47V)
Parameter
Supply Voltage
Supply Current
Symbol
V
CC
I
CC
Minimum
3.13
-
Typical
3.3
175
Maximum
3.47
300
Units
V
mA
Module Definition
MOD_DEF(0)
pin 6
TTL LOW
MOD_DEF(1)
pin 5
SCL
MOD_DEF(2)
pin 4
SDA
Interpretation by Host
Serial module definition protocol
Electrical Pad Layout
20
19
18
17
16
15
14
13
12
11
TX GND
TD- (TX DATA IN-)
TD+ (TX DATA IN+)
TX GND
VccTX
VccRX
RX GND
RD+ (RX DATA OUT+)
RD- (RX DATA OUT-)
RX GND
TX GND
TX Fault
TX Disable
MOD_DEF(2)
MOD_DEF(1)
MOD_DEF(0)
NO CONNECTION
LOS
RX GND
Host Board Connector Pad Layout
20
1
2
3
4
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
Toward
Bezel
5
6
7
8
Toward
ASIC
RX GND
9
Top of Board
Bottom of Board
(as viewed thru top of board)
10
3
21737-0934, Rev. A
04-19-2006
TRXAG1VXIxMS
Example of SFP host board schematic
Vcc
3.3V
1
µ
H coil or ferrite bead
(<0.2
Ω
series resistance)
Vcc
3.3V
+
10
0.1
16
0.1
R R R
2
R
TX Fault
LOS
MOD_DEF(2)
MOD_DEF(1)
MOD_DEF(0)
(100
Ω
to ground internally)
RX DATA OUT+
to 50
Ω
load
RX DATA OUT-
to 50
Ω
load
+
15
10
0.1
8
4
TRXAG1VX
5
100
6
50
Ω
line
50
Ω
line
TX Disable
50
Ω
line
TX DATA IN+
50
Ω
line
TX DATA IN-
3
18
19
13
12
1, 9,10,11,14,17,20
R: 4.7 to 10kΩ
Ω
Application Notes
Electrical interface:
All signal interfaces are compliant
with the SFP MSA specification. The high speed DATA
interface is differential AC-coupled internally and can be
directly connected to a 3.3V SERDES IC. All low speed
control and sense output signals are open collector TTL
compatible and should be pulled up with a 4.7 - 10kΩ
resistor on the host board.
Loss of Signal (LOS):
The Loss of Signal circuit monitors
the level of the incoming optical signal and generates a logic
HIGH when an insufficient photocurrent is produced.
TX Fault:
The output indicates LOW when the transmitter
is operating normally, and HIGH with a laser fault including
laser end-of-life. TX Fault is an open collector/drain output
and should be pulled up with a 4.7 - 10kΩ resistor on the
host board. TX Fault is non-latching (automatically
deasserts when fault goes away).
TX Disable:
When the TX Disable pin is at logic HIGH,
the transmitter optical output is disabled (less than -45dBm).
Serial Identification and Monitoring:
The module
definition of SFP is indicated by the three module definition
pins, MOD_DEF(0), MOD_DEF(1) and MOD_DEF(2).
Upon power up, MOD_DEF(1:2) appear as NC (no
connection), and MOD_DEF(0) is TTL LOW. When the
host system detects this condition, it activates the serial
protocol (standard two-wire I
2
C serial interface) and generates
the serial clock signal (SCL). The positive edge clocks data
into the EEPROM segments of the SFP that are not write
protected, and the negative edge clocks data from the SFP.
The serial data signal (SDA) is for serial data transfer. The
host uses SDA in conjunction with SCL to mark the start
and end of serial protocol activation. The supported
monitoring functions are temperature, voltage, bias current,
transmitter power, average receiver signal, all alarms and
warnings, and software monitoring of TX Fault/LOS. The
device is internally calibrated.
The data transfer protocol and the details of the mandatory
and vendor specific data structures are defined in the SFP
MSA, and SFF-8472, Rev. 9.4.
Power supply and grounding:
The power supply line should
be well-filtered. All 0.1µF power supply bypass capacitors
should be as close to the transceiver module as possible.
4
21737-0934, Rev. A
04-19-2006
TRXAG1VXIxMS
Package Outline
54.6
2.15
1.27
.05 MAX
13.56
.53
1
.04 MAX
6.25 0.051
.25 .002
1
.04
FRONT EDGE OF
TRANSCEIVER CAGE
15.67
.62
47.50
1.87 REF
8.9
.35
8.51
.34
9.55
.38
13.9 0.1
.546 .004
1.8
.07
41.8 0.15
1.645 .006
45 0.20
1.772 .008
Dimensions in inches [mm]
Default tolerances:
.xxx = + .005”, .xx = + .01”
Ordering Information
Model Name
TRXAG1VXIBMS
TRXAG1VXIEMS
1
Operating
Temperature
- 5°C to +70°C
- 5°C to +85°C
Latch
Color
Magenta
Magenta
Nominal
Wavelength
1550nm
1550nm
Optical Link
Power Budget
32dB min.
32dB min.
Distance
1
120km
2
120km
2
The indicated transmission distance is for guidelines only, not guaranteed. The exact distance is dependent on the fiber loss, connector and
splice loss, and allocated system penalty. Longer distances can be supported if the optical link power budget is satisfied.
2
Assuming a total connector and splice loss of 2dB, total system penalty of 3dB and fiber loss of 0.22dB/km.
Optical Communication Products, Inc.
6101 Variel Avenue, Woodland Hills, CA 91367, Tel.: 818-251-7100, FAX: 818-251-7111, www.ocp-inc.com
Optical Communication Products, Inc. reserves the right to make changes in equipment design or specifications without notice. Information supplied by Optical Communication Products, Inc.
is believed to be accurate and reliable. However, no responsibility is assumed by Optical Communication Products, Inc. for its use nor for any infringements of third parties, which may
result from its use. No license is granted by implication or otherwise under any patent right of Optical Communication Products, Inc.
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