OPLINK TRXA03

OC-3/STM-1 SFP Transceivers
with Digital Diagnostics
TRXA03 Single Mode
Product Description
The TRXA03 SFP series of fiber optic transceivers with integrated digital diagnostics
monitoring functionality provide a quick and reliable interface for short reach (SR),
intermediate reach (IR) and long reach (LR) 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 I2C serial interface.
Available products under this series are compliant with applicable SONET/SDH
standard for OC-3/STM-1. All modules satisfy Class I Laser Safety requirements
in accordance with the U.S. FDA/CDRH and international IEC-60825 standards.
The TRXA03 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 design incorporates a highly reliable 1310nm or 1550nm InGaAsP
laser and a driver circuit. The receiver features a transimpedance amplifier IC
optimized for high sensitivity and wide dynamic range. The transmitter and
receiver DATA interfaces are AC-coupled internally. LVTTL 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 or -40°C to +85°C. The housing is made of
plastic and metal for EMI immunity.
Features
 Lead Free Design & Fully RoHS Compliant
 Compatible with SFP MSA
 Compliant with SONET/SDH OC-3/STM-1
(155Mb/s)
 SONET/SDH Reaches (SR-1, IR-1, LR-1 & LR-2)
 Digital Diagnostics through Serial Interface
 Internal Calibration for Digital Diagnostics
 Eye Safe (Class I Laser Safety)
 Duplex LC Optical Interface
 Excellent EMI & ESD Protection
 Hot-pluggable
 TX Fault & Loss of Signal Outputs
 TX Disable Input
 Single +3.3V Power Supply
Absolute Maximum Ratings
Parameter
Storage Temperature
Operating Case Temperature1
“B” Option
“A” Option
Symbol
Minimum
Maximum
Units
TST
- 40
+ 85
°C
TOP
-5
+ 70
- 40
+ 85
+5.0
V
°C
Supply Voltage
VCC
0
Input Voltage
VIN
0
VCC
V
-
-
NA
-
Lead Terminal Finish, Reflow Profile Limits and MSL
1
Measured on top side of SFP module at the front center vent hole of the cage.
An Oplink Company
RevB-NP.2009.01.12
TRXA03 Single Mode
Transmitter Performance Characteristics
(Over Operating Case Temperature. VCC = 3.13 to 3.47V)
All parameters guaranteed only at typical data rate
Parameter
Symbol
Minimum
Typical
Maximum
Units
B
-
156
-
Mb/s
- 15.0
- 11.0
- 8.0
- 5.0
- 3.0
0
Phi /Plo
10
-
-
1261
1310
1360
λC
1270
1310
1360
1480
1550
1580
Operating Data Rate 1
Average Optical Output
Power (coupled into single
mode fiber), 50% duty cycle
IR-1
PO
LR-1 & LR-2
Extinction Ratio
IR-1
LR-1
Center Wavelength
LR-2
dBm
dB
nm
IR-1 & LR-1
ΔλRMS
-
-
3
nm
Spectral Width (-20dB)
LR-2
Δλ20
-
-
1
nm
Side Mode Suppression Ratio
LR-2
SMSR
30
-
-
dB
Spectral Width (RMS)
Optical Output Eye
1
Compliant with Telcordia GR-253-CORE and ITU-T Recommendation G.957
Data rate ranges from 50Mb/s to 266Mb/s. However, some degradation may be incurred in overall performance
(Over Operating Case Temperature. VCC = 3.13 to 3.47V)
Receiver Performance Characteristics
All parameters guaranteed only at typical data rate
Parameter
Operating Data Rate
1
Receiver Sensitivity (10 BER)
-10
2
Maximum Input Optical Power (10-10 BER)
2
Symbol
Minimum
Typical
Maximum
Units
B
-
156
-
Gb/s
Pmin
- 34.0
- 36.0
-
dBm
Pmin
- 7.0
0
-
dBm
Increasing Light Input
Plos+
-
-
- 23.0
Decreasing Light Input
Plos-
- 45.0
-
-
Increasing Light Input
t_loss_off
-
-
100
Decreasing Light Input
t_loss_on
2.3
-
100
LOS Hysteresis
-
0.5
1.5
-
dB
Wavelength of Operation
λ
1100
-
1600
nm
Receiver Reflectance (LR-2 only)
-
-
-
- 25.0
dB
LOS Thresholds
LOS Timing Delay
1
2
dBm
μs
Data rate ranges from 50Mb/s to 266Mb/s. However, some degradation may be incurred in overall performance.
Specified in average optical input power and measured with 223-1 PRBS at 156Mb/s and 1310nm for IR-1 and LR-1, 1550nm for LR-2.
Oplink Communications, Inc.
Laser Safety: All transceivers are Class I Laser
products per FDA/CDRH and IEC-60825 standards. They must be operated under specified
operating conditions.
Oplink Communications, Inc.
DATE OF MANUFACTURE:
This product complies with
21 CFR 1040.10 and 1040.11
Meets Class I Laser Safety Requirements
2
RevB-NP.2009.01.12
TRXA03 Single Mode
Transmitter Electrical Interface (Over Operating Case Temperature. VCC = 3.13 to 3.47V)
Parameter
Input Voltage Swing (TD+ & TD-) 1
Input HIGH Voltage (TX Disable)
Symbol
Minimum
Typical
Maximum
Units
VPP-DIF
0.25
-
2.4
V
VIH
2.0
-
VCC
V
2
2
VIL
0
-
0.8
V
Output HIGH Voltage (TX Fault) 3
VOH
2.0
-
VCC + 0.3
V
Output LOW Voltage (TX Fault)
VOL
0
-
0.8
V
Input LOW Voltage (TX Disable)
1
2
3
3
Differential peak-to-peak voltage.
There is an internal 4.7 to 10kΩ pull-up resistor to VccT.
Open collector compatible, 4.7 to 10kΩ pull-up resistor to Vcc (Host Supply Voltage).
(Over Operating Case Temperature. VCC = 3.13 to 3.47V))
Receiver Electrical Interface
Parameter
Symbol
Minimum
Typical
Maximum
Units
VPP-DIF
0.60
-
2.0
V
Output HIGH Voltage (LOS)
2
VOH
2.0
-
VCC + 0.3
V
Output LOW Voltage (LOS))
2
VOL
0
-
0.5
V
Output Voltage Swing (RD+ & RD-)
1
2
1
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
Parameter
Supply Voltage
(Over Operating Case Temperature. VCC = 3.13 to 3.47V))
Symbol
Minimum
Typical
Maximum
Units
VCC
3.13
3.3
3.47
V
-
170
245
-
185
300
IR-1, LR-1
Supply Current
ICC
LR-2
mA
Module Definition
MOD_DEF(0)
pin 6
MOD_DEF(1)
pin 5
MOD_DEF(2)
pin 4
Interpretation by Host
TTL LOW
SCL
SDA
Serial module definition protocol
Electrical Pad Layout
Host Board Connector Pad Layout
20
TX GND
1
TX GND
19
TD- (TX DATA IN-)
2
TX Fault
1
18
TD+ (TX DATA IN+)
3
TX Disable
2
17
TX GND
4
MOD_DEF(2)
3
16
VccTX
5
MOD_DEF(1)
4
15
VccRX
6
MOD_DEF(0)
14
RX GND
7
NO CONNECTION
6
13
RD+ (RX DATA OUT+)
8
LOS
7
12
RD- (RX DATA OUT-)
9
RX GND
8
11
RX GND
10
RX GND
9
Top of Board
Oplink Communications, Inc.
Toward
Bezel
5
10
Bottom of Board
(as viewed thru top of board)
3
20
19
18
17
16
15
Toward
ASIC
14
13
12
11
RevB-NP.2009.01.12
TRXA03 Single Mode
Example of SFP host board schematic
TRXA03
R: 4.7 to 10kΩ
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.
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 I2C 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.
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.
The serial data signal (SDA) is for serial data transfer. The
host uses SDA in conjunction with SCL to mark the startand
end of serial protocol activation. The supported monitoring
functions are internal temperature, supply voltage, bias
current, transmitter power, average receiver signal, all alarms
and warnings and software monitoring of TX Fault/LOS. The
device is internally calibrated.
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 in non-latching (automatically deasserts
when fault goes away).
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
TX_Disable: When the TX Disable pin is at logic HIGH, the
transmitter optical output is disabled (less than -45dBm).
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.
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).
Oplink Communications, Inc.
4
RevB-NP.2009.01.12
TRXA03 Single Mode
46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: [email protected] • www.oplink.com
Package Outline
Dimensions in inches [mm]
Default tolerances:
.xxx = + .005”, .xx = + .01”
Ordering Information
Oplink can provide a remarkable range of customized optical solutions. For detail, please contact Oplink’s Sales
and Marketing for your requirements and ordering information (510) 933-7200 or [email protected]
Oplink Communications, Inc. reserves the right to make changes in equipment design or specifications without notice. Information supplied by Oplink Communications, Inc. is believed to be accurate and reliable. However, no responsibility is assumed by Oplink Communications, 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 Oplink Communications, Inc.
RevB-NP.2009.01.12
© 2006, Oplink Communications, Inc.
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