OC-12/STM-4 SFP Multimode Transceivers with Digital Diagnostics
TRPA12MM
Product Description The TRPA12MM SFP fiber optic transceivers with integrated digital diagnostics monitoring functionality provide a quick and reliable interface for OC-12/STM-4 multimode applications. The diagnostic monitoring functions, alarm and warning features are provided via an I2C serial interface. The transceivers are designed to be compatible with the ATM requirements at OC-12/STM-4 (622Mb/s) data rate. The TRPA12MM 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 transmitter design incorporates a highly reliable 1310nm LED and an integrated driver circuit. The receiver features a transimpedance amplifier IC for high sensitivity and wide dynamic range. 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 three operating case temperature ranges of -5°C to +70°C (“B” option), -5°C to +85°C (“E” option), or -40°C to +85°C (“A” option). The housing is made of plastic and metal for EMI enhancement.
Features Compatible with SFP MSA Compatible with ATM and Specifications for OC-12/STM-4 (622Mb/s) Digital Diagnostics Monitoring through Serial Interface Distances up to 500m Hot-pluggable Three Operating Case Temperature Options Loss of Signal Output TX Disable Input Duplex LC Optical Interface Single +3.3V Power Supply
Absolute Maximum Ratings
Parameter Storage Temperature “B” option Operating Case Temperature Supply Voltage Input Voltage
1
Symbol Tst
Minimum - 40 -5 -5 - 40 0 0
Maximum + 85 + 70 + 85 + 85 + 5.0 Vcc
Units °C °C V V
1
“E” option “A” option
Top Vcc Vin
Measured on top side of SFP module at the front center vent hole of the cage.
An Oplink Company
RevB-P. 2009.04.01
TRPA12MM
Transmitter Performance Characteristics (Over Operating Case Temperature, VCC = 3.13 to 3.47V)
All parameters guaranteed only at typical data rate Parameter Operating Data Rate 1 Optical Output Power Center Wavelength Spectral Width (FWHM) Optical Rise and Fall Time (10% to 90%) Extinction Ratio Transmitter OFF Power Systematic Jitter (DCD & DDJ, peak-to-peak) Random Jitter (peak-to-peak)
1 2
Symbol B PO λC Δλ FWHM tr, tf Phi/Plo POFF SJ RJ
Minimum - 20.0 1270 10 -
Typical 622 140 1.0 -
Maximum - 14.0 1380 200 1.25 - 45.0 0.4 0.15
Units Mb/s dBm nm nm ns dB dBm ns ns
2
Data rate ranges from 50Mb/s to 700Mb/s. However, some degradation may be incurred in overall performance. Measured average power coupled into 62.5/125μm, 0.275 NA graded-index multimode fiber. The minimum power specified is at Beginning-of-Life.
Receiver Performance Characteristics (Over Operating Case Temperature, VCC = 3.13 to 3.47V)
All parameters guaranteed only at typical data rate Parameter Operating Data Rate
1 -10 2
Symbol B Pmin Pmax Plos+ Plost_loss_off t_loss_on λ
Minimum - 26.0 - 14.0 - 40.0 1100
Typical 622 - 28.0 - 6.0 1.0 -
Maximum - 26.0 100 350 1600
Units Mb/s dBm dBm dBm dB µs nm
Receiver Sensitivity (10 BER)
Maximum Input Optical Power (10-10 BER) 2 LOS Thresholds LOS Hysteresis LOS Timing Delay Increasing Light Input Decreasing Light Input Increasing Light Input Decreasing Light Input
Wavelength of Operation
1
Data rate ranges from 50Mb/s to 700Mb/s. However, some degradation may be incurred in overall performance. 2 Specified in average optical input power and measured at 622Mb/s and 1310nm wavelength with 223-1 PRBS. The sensitivity is guaranteed with eye opening of 0.31ns.
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-P. 2009.04.01
TRPA12MM
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) 2 Input LOW Voltage (TX Disable)
1 2
Symbol VPP-DIF VIH VIL
Minimum 0.25 2.0 0
Typical -
Maximum 2.4 VCC 0.8
Units V V V
2
Differential peak-to-peak voltage. There is an internal 4.7 to 10kΩ pull-up resistor to VccT.
Receiver Electrical Interface (Over Operating Case Temperature, VCC = 3.13 to 3.47V)
Parameter Output Voltage Swing (RD+ & RD-) 1 Output HIGH Voltage (LOS) 2 Output LOW Voltage (LOS)
1 2
Symbol VPP-DIF VOH VOL
Minimum 0.6 2.0 0
Typical -
Maximum 2.0 VCC + 0.3 0.5
Units V V V
2
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, VCC = 3.13 to 3.47V)
Parameter Supply Voltage Supply Current Symbol VCC ICC Minimum 3.13 Typical 3.3 210 Maximum 3.47 285 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
Host Board Connector Pad Layout
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
20 19 18 17 16 15 14 13 12 11
Toward ASIC
4 5 6 7 8 9 10
Top of Board
Bottom of Board (as viewed thru top of board)
Pin 2 Internally Grounded.
Oplink Communications, Inc.
3
RevB-. 2009.04.01
TRPA12MM
Example of SFP host board schematic
1µH coil or ferrite bead (
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