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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 -5C to +70C or -40C to +85C. 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 Supply Voltage Input Voltage Lead Terminal Finish, Reflow Profile Limits and MSL
1
Symbol TST "B" Option "A" Option TOP VCC VIN -
Minimum - 40 -5 - 40 0 0 -
Maximum + 85 + 70 + 85 +5.0 VCC NA
Units C C V V -
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
All parameters guaranteed only at typical data rate Parameter Operating Data Rate 1 Average Optical Output Power (coupled into single mode fiber), 50% duty cycle Extinction Ratio IR-1 Center Wavelength Spectral Width (RMS) Spectral Width (-20dB) Side Mode Suppression Ratio Optical Output Eye
1
(Over Operating Case Temperature. VCC = 3.13 to 3.47V)
Symbol B IR-1 LR-1 & LR-2 PO Phi /Plo LR-1 LR-2 IR-1 & LR-1 LR-2 LR-2 RMS 20 SMSR C
Minimum - 15.0 - 5.0 10 1261 1270 1480 30
Typical 156 - 11.0 - 3.0 1310 1310 1550 -
Maximum - 8.0 0 1360 1360 1580 3 1 -
Units Mb/s dBm dB nm nm nm dB
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
Receiver Performance Characteristics
All parameters guaranteed only at typical data rate Parameter Operating Data Rate
1 -10 2 2
(Over Operating Case Temperature. VCC = 3.13 to 3.47V)
Symbol B Pmin Pmin Plos+ Plost_loss_off t_loss_on -
Minimum - 34.0 - 7.0 - 45.0 2.3 0.5 1100 -
Typical 156 - 36.0 0 1.5 -
Maximum - 23.0 100 100 1600 - 25.0
Units Gb/s dBm dBm dBm s dB nm dB
Receiver Sensitivity (10 BER)
Maximum Input Optical Power (10-10 BER) LOS Thresholds LOS Timing Delay LOS Hysteresis Wavelength of Operation Receiver Reflectance (LR-2 only)
1 2
Increasing Light Input Decreasing Light Input Increasing Light Input Decreasing Light Input
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.
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
Oplink Communications, Inc.
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) Input LOW Voltage (TX Disable) Output LOW Voltage (TX Fault)
1 2 3
Symbol VPP-DIF VIH VIL VOH VOL
Minimum 0.25 2.0 0 2.0 0
Typical -
Maximum 2.4 VCC 0.8 VCC + 0.3 0.8
Units V V V V V
2
2
Output HIGH Voltage (TX Fault) 3
3
Differential peak-to-peak voltage. There is an internal 4.7 to 10k pull-up resistor to VccT. Open collector compatible, 4.7 to 10k pull-up resistor to Vcc (Host Supply Voltage).
Receiver Electrical Interface
Parameter Output Voltage Swing (RD+ & RD-) Output HIGH Voltage (LOS) Output LOW Voltage (LOS))
1 2
(Over Operating Case Temperature. VCC = 3.13 to 3.47V)) Symbol Minimum 0.60 2.0 0 Typical Maximum 2.0 VCC + 0.3 0.5 Units V V V
1
VPP-DIF VOH VOL
2 2
Differential peak-to-peak voltage across external 100 load. Open collector compatible, 4.7 to 10k pull-up resistor to Vcc (Host Supply Voltage).
Electrical Power Supply Characteristics
Parameter Supply Voltage Supply Current IR-1, LR-1 LR-2 VCC ICC
(Over Operating Case Temperature. VCC = 3.13 to 3.47V)) Minimum 3.13 Typical 3.3 170 185 Maximum 3.47 245 300 Units V mA
Symbol
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
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
Host Board Connector Pad Layout
20 19 18 17 16 15 14 13 12 11
Toward ASIC
1 2 3 4 5 6 7 8 9 10
TX GND TX Fault TX Disable MOD_DEF(2) MOD_DEF(1) MOD_DEF(0) NO CONNECTION LOS RX GND RX GND
1 2 3
Toward Bezel
4 5 6 7 8 9 10
Top of Board
Bottom of Board (as viewed thru top of board)
Oplink Communications, Inc.
3
RevB-NP.2009.01.12
TRXA03 Single Mode
Example of SFP host board schematic
TRXA03
R: 4.7 to 10k 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 - 10k 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 - 10k resistor on the host board. TX Fault in 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 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. 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. 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 0.1F power supply bypass capacitors should be as close to the transceiver module as possible.
Oplink Communications, Inc.
4
RevB-NP.2009.01.12
TRXA03 Single Mode
Package Outline
46335 Landing Pkwy Fremont, CA 94538 Tel: (510) 933-7200 Fax: (510) 933-7300 Email: Sales@Oplink.com * www.oplink.com
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 Sales@oplink.com.
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 (c) 2006, Oplink Communications, Inc. 5

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