GO2951 CWDM OPTICAL TRANSCEIVER MODULE (NON-MSA) Datasheet name: GO2951-57365_doc1.pdf Contact information: info@embrionix.com www.embrionix.com GO2951 CWDM Optical Transceiver Features Applications * * Best-in-class optical receiver sensitivity: -22dBm (over all supported video rates with pathological data) * Robust error free transmission of signals from 50Mbps to 3Gbps * Up to 50km reach in a 3Gbps CWDM installation * Supports video pathological patterns for SD-SDI, HD-SDI and 3G-SDI * Hot-pluggable * Laser disable pin * User writeable EEPROM * Digital diagnostics and control via I2C interface including: Monitoring of the laser bias current, average output power, receive optical power, supply voltage and temperature Alarm reporting Module ID polling * Single +3.3V power supply * RoHS compliant * Operating temperature range: 0C to 70C * 56.5mm x 13.4mm x 8.6mm SFP Package * SMPTE 297-2006 compliant SMPTE 297-2006 compliant optical-to-electrical interfaces Description The GO2951 is an optical transceiver module engineered for exceptional performance in the presence of SDI pathological patterns. The transceiver features best-in-class optical receiver sensitivity for SMPTE 259M, SMPTE 344M, SMPTE 292M and SMPTE 424M serial rates, thus providing superior optical link budget and robustness. The GO2951 contains a PIN photodiode receiver and a DFB laser transmitter designed to provide error-free transmission of signals from 50Mbps to 3Gbps over single mode fiber (9/125). It is also hot-pluggable. The GO2951 provides extensive operational status monitoring through an I2C interface. Input optical power is monitored in the receiver; output optical power and bias current are monitored in the transmitter. Other operating conditions, such as power supply and operating temperature, are also monitored. If a monitored parameter falls outside the pre-defined range, an alarm flag associated with the parameter will be raised. ` Figure A: GO2951 Optical Transceiver Module GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 www.gennum.com 1 of 27 Proprietary & Confidential Revision History Version ECR Date 0 157039 November 2011 1 157987 April 2012 Changes and/or Modifications New document. Updated extinction ratio in Table 3-2. Contents Features.................................................................................................................................................................1 Description...........................................................................................................................................................1 Revision History .................................................................................................................................................2 1. Functional Block Diagram..........................................................................................................................3 2. Pin Specifications ..........................................................................................................................................4 2.1 Pin Configuration .............................................................................................................................4 2.2 Pin Descriptions ................................................................................................................................5 2.3 Host Board Power Supply Requirements .................................................................................6 2.4 Optical Connector Requirements ................................................................................................6 3. Product Specifications .................................................................................................................................7 3.1 Absolute Maximum Ratings ..........................................................................................................7 3.2 Optical Performance Specifications ...........................................................................................7 3.3 DC Electrical Specifications ..........................................................................................................9 3.4 AC Electrical Specifications ....................................................................................................... 10 3.5 Supporting Circuit Specifications ............................................................................................ 10 3.5.1 In-Rush Current Control Circuit ................................................................................... 10 4. Digital Diagnosis......................................................................................................................................... 11 4.1 I2C Bus Interface ............................................................................................................................ 11 4.2 Serial Interface Memory Map .................................................................................................... 13 5. Application Reference Design ............................................................................................................... 21 5.1 Typical Application Circuit ........................................................................................................ 21 6. References and Relevant Standards .................................................................................................... 22 7. Package Information ................................................................................................................................. 23 7.1 Package Dimensions ..................................................................................................................... 23 7.2 PCB Layout Recommendations ................................................................................................. 24 7.3 Marking Information .................................................................................................................... 25 7.4 Ordering Information ................................................................................................................... 26 GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 2 of 27 Proprietary & Confidential 1. Functional Block Diagram Feedback TX_DIS Laser Driver Differential Electrical Input TX_FAULT I2C Bus TOSA Laser + PINmon 1270 - 1610nm TX provision and analog maintenance RX input power monitoring Digital Diagnostics RX_LOS Differential Electrical Output Limiting Amp ROSA TIA + PIN 1260 - 1620nm Figure 1-1: GO2951 Functional Block Diagram GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 3 of 27 Proprietary & Confidential 2. Pin Specifications 2.1 Pin Configuration Figure 2-1 shows the host board pad configuration for the GO2951. Figure 2-3 shows the edge connector pad configuration for the GO2951. Towards Bezel 1 VEE_TX 2 TX_DIS 20 TX_FAULT TD- 19 3 NC TD+ 18 4 VEE_TX VEE_TX 17 5 I2C CLK VCC_TX 16 6 I2C DATA VCC_RX 15 7 VEE_RX VEE_RX 14 8 RX_LOS RD+ 13 9 NC RD- 12 10 NC VEE_RX 11 Towards ASIC Figure 2-1: GO2951 Host Board Pad Configuration Top of Board Bottom of Board (as viewed through top of board) 20 TX_DIS 1 VEE_TX 19 TD- 2 TX_FAULT 18 TD+ 3 NC 17 VEE_TX 4 VEE_TX 16 VCC_TX 5 I2C CLK 15 VCC_RX 6 I2C DATA 14 VEE_RX 7 VEE_RX 13 RD+ 8 RX_LOS 12 RD- 9 NC 11 VEE_RX 10 NC Figure 2-2: GO2951 Edge Connector Pad Configuration GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 4 of 27 Proprietary & Confidential 2.2 Pin Descriptions Table 2-1 lists the pin descriptions. Table 2-1: Pin Descriptions Number Name Type Description Notes 1 VEE_TX Ground Transmitter ground connection 1 2 TX_FAULT Output Transmitter fault indicator (Active high, open-drain) - 3 NC No Connect No Connection - 4 VEE_TX Ground Transmitter ground connection 1 5 I2C CLK Digital (Input) I2C Clock - 6 I2C DATA Digital (Bi-Directional) I2C Data - 7 VEE_RX Ground Receiver ground connection 1 8 RX_LOS Output Receiver loss of signal indicator (Active high, open-drain) - 9 NC No Connect No Connection - 10 NC No Connect No Connection - 11 VEE_RX Ground Receiver ground connection 1 12 RD- Output Negative differential input (AC-coupled internally) - 13 RD+ Output Positive differential output (AC-coupled internally) - 14 VEE_RX Ground Receiver ground connection 1 15 VCC_RX Power Receiver power supply 2 16 VCC_TX Power Transmitter power supply 2 17 VEE_TX Ground Transmitter ground connection 1 18 TD+ Input Positive differential input (AC-coupled internally) - 19 TD- Input Negative differential input (AC-coupled internally) - 20 TX_DIS Digital (Input) Transmitter Disable. Laser is disabled when high. Internal 6k pull-up. - NOTE: 1. All VEE signals are connected together inside the module. 2. VCC_TX and VCC_RX are independent supplies. GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 5 of 27 Proprietary & Confidential 2.3 Host Board Power Supply Requirements The host board is required to provide a regulated and filtered power supply of 3.3V +/5% for the GO2951 via the on board SFP connector. Figure 2-3 shows the recommended board supply filtering. When the host board is loaded with a resistive load in place of the SFP module and sourcing the maximum rated current, the peak-to-peak power supply noise measured on the SFP connector should comply to Table 2-2. 3.3V VCC_Tx VCC_Rx GO2951 Host Board Figure 2-3: Recommended Host Board Supply Filtering Table 2-2: Host Board Power Supply Noise Requirement at VCC_TX and VCC_RX Frequency (MHz) Peak-to-Peak Noise Amplitude (%) 0.02-1 2 1-10 3 2.4 Optical Connector Requirements An LC connector with PC/UPC polish is required for each port. GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 6 of 27 Proprietary & Confidential 3. Product Specifications 3.1 Absolute Maximum Ratings Table 3-1 lists the absolute maximum ratings for the GO2951. Conditions exceeding the limits listed may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions outside those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 3-1: Absolute Maximum Ratings Parameter Value Supply Voltage 4V Operating Case Temperature -20C to 80C Storage Temperature -40C < TSTG < 85C 1kV HBM ESD tolerance on all pins Relative Humidity (non-condensing) 5% - 95% RH 3.2 Optical Performance Specifications Table 3-2 lists the optical performance specifications for the transmitter of the GO2951. Table 3-3 lists the optical performance specifications for the receiver of the GO2951. Table 3-2: Transmitter Optical Performance Specifications Parameter Symbol Condition Min Typ Max Units Notes Wavelength - x - 6.5 x x + 6.5 nm 1 Spectral Line Width (RMS) - - - 0.2 1 nm - Average Optical Output Power POUT - 0 +2.5 +5 dBm - ER - 7 - - dB - Extinction Ratio GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 7 of 27 Proprietary & Confidential Table 3-2: Transmitter Optical Performance Specifications (Continued) Parameter Optical Signal Intrinsic Jitter Symbol Condition Min Typ Max Units Notes - 2.97Gbps, 1.485Gbps, 270Mbps PRBS - 30 60 ps - 2.97Gbps - 50 70 ps - - 60 100 ps - - 110 180 ps - - - 135 ps - - - 135 ps - -1 - +1 dB - SMPTE 424M Pathological 1.485Gbps SMPTE 292M Pathological 270Mbps SMPTE 259M Pathological Optical Signal Rise Time tr Optical Signal Fall Time tf (20% to 80%) Laser Power Monitoring Accuracy 2.97Gbps SMPTE 424M (20% to 80%) 2.97Gbps SMPTE 424M - - NOTE 1. x = center wavelength: 1271nm, 1291nm, 1311nm, 1331nm, 1351nm, 1371nm, 1391nm, 1411nm, 1431nm, 1451nm, 1471nm, 1491nm, 1511nm, 1531nm, 1551nm, 1571nm, 1591nm, 1611nm. Table 3-3: Receiver Optical Performance Specifications Parameter Symbol Condition Min Typ Max Units Notes Wavelength - 1260 - 1620 nm - Sensitivity - ER = 9dB - -25 -22 dBm 1 Overload - - 0 - - dBm 1 Loss of Signal Asserted - 2.97Gbps PRBS -31 - - dBm - - - -23 dBm - 0.5 - - dB - - - -27 dB - ER = 9dB Loss of Signal De-asserted - 2.97Gbps PRBS ER = 9dB Loss of Signal Optical Hysteresis - Maximum Back Reflection - GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 2.97Gbps PRBS ER = 9dB - 8 of 27 Proprietary & Confidential Table 3-3: Receiver Optical Performance Specifications (Continued) Parameter Symbol Condition Min Typ Max Units Notes - - -2 - 2 dB - Input Power Monitoring Accuracy NOTES 1. The sensitivity and the overload specifications refer to the input power levels for BER = 1E-12 against both PRBS and pathological pattern at SMPTE 259, SMPTE 292M and SMPTE 424M rates. 3.3 DC Electrical Specifications Table 3-4 lists the DC electrical specifications of the GO2951. Figure 3-1 shows the definition of the differential signal level. Table 3-4: DC Electrical Specifications Parameter Symbol Condition Min Typ Max Units Notes TCASE - 0 - 70 C 1 VCC - 3.13 3.3 3.47 V 1 - - - 650 940 mW - Differential Input Data Amplitude Vp-pDiff - 0.4 - 2.4 Vpp 2 Differential Output Data Amplitude Vp-pDiff - 0.550 0.660 0.850 Vpp 3 Digital Input Low VIL - 0 0.8 V - Digital Input High ViH - 2 VCC V - Operating Temperature Range Power Supply Voltage Total Power Consumption NOTES 1. Outside the specified range, performance is not guaranteed. 2. Signals are AC coupled internally within the module and terminated to a 50 single-ended termination. 3. Each leg must be terminated to a 50 (single-ended) termination. Signals are AC coupled internally within the module. VSE DATAP DATAN DATAP - DATAN V p-pDIFF = 2 x VSE 0V Figure 3-1: Definition of Differential Signal Level GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 9 of 27 Proprietary & Confidential 3.4 AC Electrical Specifications Table 3-5 lists the AC electrical specifications for the GO2951. Table 3-5: AC Electrical Specifications Parameter Symbol Condition Min Max Units BR - 50 3000 Mbps Bit Rate Time to Initialize t_init From power on - 300 ms Rise/Fall Time tr / tf 20% to 80% - 135 ps Tx_Disable Assert Time t_off Time from rising edge of Tx_Disable to when the optical output falls below 10% of nominal. - 10 s Tx_Disable Negate Time t_on Time from falling edge of Tx_Disable to when the modulated optical output rises above 90% of nominal. - 1 ms Rx_LOS Assert Time t_loss_on Time from Rx_LOS state to Rx_LOS assert. - 10 ms Rx_LOS De-assert Time t_loss_off Time from non-Rx_LOS state to Rx_LOS de-assert. - 10 ms - 400 kHz Serial ID Clock Rate f_serial_clock - 3.5 Supporting Circuit Specifications 3.5.1 In-Rush Current Control Circuit Due to the hot-pluggable requirement, the GO2951 has built-in circuits to limit the in-rush current upon hot insertion. The specifications of the in-rush limiting circuits are summarized in Table 3-6. Table 3-6: In-rush Current Limiting Circuits Specifications Parameter Value Maximum in-rush current ramp rate 50mA/ms Maximum in-rush current 30mA over steady state GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 10 of 27 Proprietary & Confidential 4. Digital Diagnosis 4.1 I2C Bus Interface The I2C interface allow reading of diagnostic information from the module. It is comprised of I2C DATA and I2C CLK pins. All address and data bytes are transmitted through the I2C DATA pin. The I2C DATA and I2C CLK pins are open-collector and they must be pulled high (4.75k recommended) externally to the module. Data on the I2C DATA pin may only change during I2C CLK 'low' time periods. Data changes during I2C CLK 'high' periods will indicate either a START or STOP condition. Operations and conditions are described as follows: START Condition The START condition is originated by the host. A high-to-low transition of I2C DATA while I2C CLK 'high' defines a START condition that must precede any other command, see Figure 4-1. STOP Condition The STOP condition is originated by the host. A low-to-high transition of I2C DATA while I2C CLK 'high' defines a STOP condition, see Figure 4-1. START STOP I2C DATA I2C CLK Figure 4-1: I2C START and STOP Condition Acknowledge or ACK Condition The acknowledge condition occurs when the I2C DATA pin is pulled 'low' during the ninth clock pulse following an address or data byte. The module originates this condition after it has received a block or data address. The host originates this condition during a sequential address read operation. Addressing Operation The module must receive a block address following a START condition to enable a read operation. The block address is clocked into the module MSB to LSB. There are three read operations: current address read, random read, and sequential address read. Note that by the convention specified in the SFP MSA, 7-bit block addresses are left shifted by one bit when expressing them in hex. Block addresses for the different GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 11 of 27 Proprietary & Confidential memory regions are specified in Section 4.2. Block addresses A0h, A2h, and B2h would therefore be transmitted defined as binary 1010000, 1011001 and 1011001 respectively. Current Address Read Operation The module has an internal register that maintains the data address used during the last read operation, incremented by one. If the most recent data address was FFh, then the register resets to 00h. Once the block address is clocked in by the host with the R/W bit set 'high', the module follows with an ACK condition, and the data byte located at the current data address is serially clocked out of the module MSB to LSB. The operation is terminated when the host does not provide an ACK condition and initiates a STOP condition. See Figure 4-2. START I2C DATA Block Address Read Data Byte STOP 7 6 5 4 3 2 1 R A 7 6 5 4 3 2 1 0 ACK Host driving data line NO ACK Module driving data line Figure 4-2: I2C Current Address Read Operation Random Address Read Operation A random read operation requires a dummy write sequence to load in the data address. Once the block and data addresses are clocked in by the host followed by an ACK condition provided by the module, the host must generate another START condition. The host now initiates a current address read operation by sending the block address with the R/W bit set 'high'. The module provides an ACK condition and serially clocks out the data byte. The operation is terminated when the host does not provide an ACK condition and initiates a STOP condition. See Figure 4-3. START I2C DATA Block Address Write START Data Address 7 6 5 4 3 2 1 W A 7 6 5 4 3 2 1 0 A Read Data Byte STOP 7 6 5 4 3 2 1 R A 7 6 5 4 3 2 1 0 ACK ACK Host driving data line Block Address ACK NO ACK Module driving data line Figure 4-3: I2C Random Access Read Operation Sequential Address Read Operation The sequential address read operation is initiated by either a current address read or random address read operation. After the host receives the first data byte, it responds with an ACK condition. As long as the module receives the ACK condition after a data byte is read, the host can clock out additional data bytes from the module. After the data address reaches FFh, it resets to 00h. The operation is terminated when the host does not provide an ACK condition and initiates a STOP condition. See Figure 4-4. GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 12 of 27 Proprietary & Confidential START I2C DATA Block Address Read Data Byte (N+1) Data Byte (N) Data Byte (N+M) STOP 7 6 5 4 3 2 1 R A 7 6 5 4 3 2 1 0 A 7 6 5 4 3 2 1 0 A 7 6 5 4 3 2 1 0 ACK ACK Host driving data line ACK NO ACK Module driving data line Figure 4-4: I2C Sequential Read Access Operation 4.2 Serial Interface Memory Map Module identification and digital diagnostic monitoring information is accessible through the memory map addresses shown in this section. The bullet items below outline the different block addresses of the module: * Block address A0h contains serial ID information of the module. * Block address A2h contains alarm and warning flags, thresholds and real-time digital diagnostic features set. The 16-bit digital diagnostic monitoring information is internally calibrated over Gennum's specified operating temperature and voltage. Alarm and warning threshold values are calibrated in the same manner and can be interpreted as defined below. Internally measured module temperature is represented as a 16-bit signed two's complement value in increments of 1/256C, yielding a total range of -128C to +128C. To calculate the temperature, treat the two's complement value as a 16-bit unsigned integer and divide it by 256. If the result is greater or equal to 128, subtract 256 from the result. See Table 4-1 for temperature conversion examples. Table 4-1: Temperature Conversion Examples MSB (BIN) LSB (BIN) Temperature (C) 01000000 00000000 64C 01000000 00001111 64.059C 01011111 00000000 95C 11110110 00000000 -10C 11011000 00000000 -40C Internally measured module supply voltage is represented as a 16-bit unsigned integer with the voltage defined as the full 16-bit value with the LSB equal to 100V, yielding a total range of 0 to +6.55V. To calculate the supply voltage, multiply the 16-bit unsigned integer by 100V. Internally measured laser bias current is represented as a 16-bit unsigned integer with the current defined as the full 16-bit value with the LSB equal to 2A, yielding a total range of 0 to 131 mA. To calculate the laser bias current, multiply the 16-bit unsigned integer by 2A. GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 13 of 27 Proprietary & Confidential Internally measured Tx and Rx optical power are represented as a 16-bit unsigned integer with the power defined as the full 16-bit value with the LSB equal to 0.1W, yielding a total range of 0 to 6.5535mW (~ -40 to +8.2dBm). To calculate the Tx and Rx optical power, multiply the 16-bit unsigned integer by 0.1W. Table 4-2: Modules Identification Fields Block Address: A0h Address Size Name Description and Value of the Field 0 1 Identifier Type of serial transceiver. 85h 1 1 Ext. Identifier Extended identifier of type of serial transceiver. 04h 2 1 Connector Code for connector type. 07h for LC connectors. 3 1 Standards Compliance 41h, for SMPTE259M/344M/292M/424M and SMPTE 297. 4-10 8 Transceiver Code Code for electronic compatibility or optical compatibility. Not applicable for GO2951. 11 1 Encoding Code for serial encoding algorithm. Value: 03H for NRZ. 12 1 BR, Nominal Nominal bit rate, units of 100Mbps, 1Eh for 3Gbps. 13 1 Reserved Xxh 14 1 Length(9m) km Link length supported for standard SMF, units of km, 1Eh for 30km (at HD-SDI). 15 1 Length(9m) Link length supported for standard SMF, units of 100m, 00h 16 1 Length (50m) Link length supported for 50/125 m fiber, units of 10m, 00h 17 1 Length (62.5m) Link length supported for 62.5/125 m fiber, units of 10 m. 00h 18 1 Length (Copper) Link length supported for copper, units of meters. 00h 19 1 Reserved Xxh 20-35 16 Vendor name SFP with OM transceiver vendor name (ASCII). G E N N U M 20 1 G 47h 21 1 E 45h 22 1 N 4Eh 23 1 N 4Eh 24 1 U 55h 25 1 M 4Dh GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 14 of 27 Proprietary & Confidential Table 4-2: Modules Identification Fields (Continued) Block Address: A0h Address Size Name Description and Value of the Field 26-35 10 - 20h for each byte 36 1 Reserved - 37-39 3 Vendor OUI SFP with OM transceiver vendor IEEE company ID. 00 0A DF 40-55 16 Vendor PN Part number provided by SFP with OM transceiver vendor. GO2951-XXCH 40 1 G 47h 41 1 O 4Fh 42 1 2 32h 43 1 9 39h 44 1 5 35h 45 1 1 31h 46 1 - 2Dh 47 1 X Model dependent. 48 1 X Model dependent. 49 1 C 43h 50 1 H 48h 51-55 6 - 20h 56-58 3 Reserved Reserved field. 59 1 Vendor Rev Revision level for part number provided by vendor. 60 1 Wavelength XX for middle two digits of wavelength. 61-62 2 Reserved Xxh 63 1 CC_BASE Check code for Base ID fields. (The value of the lower 8 bits of the sum of the contents from address 0 to 62.) 64-65 2 Options Indicates which optional SFP with OM signals are implemented. 64 1 - Xxh 65 1 - xx01101xh (1Ah) 66 1 BR, max Upper bit rate margin, units of %, 5h. 67 1 BR, min Lower bit rate margin, units of %, 5Fh. 68-83 16 Vendor SN Serial number provided by vendor (ASCII) 84-85 2 Year Manufacturing date code (ASCII). GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 15 of 27 Proprietary & Confidential Table 4-2: Modules Identification Fields (Continued) Block Address: A0h Address Size Name Description and Value of the Field 86-87 2 Month Manufacturing date code (ASCII). 88-89 2 Day Manufacturing date code (ASCII). 90-91 2 Blank - 92 1 Calibration flag 28h for calibrated average output power 93 1 - F0h, Enhanced alarm/warning flags. 94 1 Reserved Xxh 95 1 CC_EXT Check code for the Extended ID fields. (The value of the lower 8 bits of the sum of the contents from address 64 to 94.) 96-255 160 Reserved - Table 4-3: Alarm and Warning Thresholds Block Address: A2h Address Size Name 0-1 2 Temp High Alarm MSB at lower address. 70C case temp. 2-3 2 Temp Low Alarm MSB at lower address. 0C case temp. 4-5 2 Temp High Warning MSB at lower address. 65C case temp. 6-7 2 Temp Low Warning MSB at lower address. 5C case temp. 8-9 2 Supply Voltage High Alarm MSB at lower address. 3.6V 10-11 2 Supply Voltage Low Alarm MSB at lower address. 3.0V 12-13 2 Supply Voltage High Warning MSB at lower address. 3.47V 14-15 2 Supply Voltage Low Warning MSB at lower address. 3.14V 16-17 2 Laser Bias High Alarm MSB at lower address. 100mA. 18-19 2 Laser Bias Low Alarm MSB at lower address. 5mA 20-21 2 Laser Bias High Warning MSB at lower address. 90mA. 22-23 2 Laser Bias Low Warning MSB at lower address. 10mA GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 Description and Value of the Field 16 of 27 Proprietary & Confidential Table 4-3: Alarm and Warning Thresholds (Continued) Block Address: A2h Address Size Name Description and Value of the Field 24-25 2 Tx Power High Alarm MSB at lower address. 5.5dBm 26-27 2 Tx Power Low Alarm MSB at lower address. -0.5dBm 28-29 2 Tx Power High Warning MSB at lower address. 5dBm 30-31 2 Tx Power Low Warning MSB at lower address. 0dBm 32-33 2 Rx Power High Alarm MSB at lower address. 0dBm 34-35 2 Rx Power Low Alarm MSB at lower address. -24dBm 36-37 2 Rx Power High Warning MSB at lower address. -1dBm 38-39 2 Rx Power Low Warning MSB at lower address. -23dBm 40-95 56 Reserved. - Table 4-4: Alarms and Real time Diagnostic information Block Address: A2h Address Size Name 96 1 Temperature MSB Internally measured module temperature (approximately equal to case temperature) 97 1 Temperature LSB Internally measured module temperature (approximately equal to case temperature) 98 1 VCC MSB Internally measured module supply voltage 99 1 VCC LSB Internally measured module supply voltage 100 1 Laser Bias MSB Internally measured laser bias current 101 1 Laser Bias LSB Internally measured laser bias current 102 1 Tx Power MSB Internally measured Tx power 103 1 Tx Power LSB Internally measured Tx power 104 1 Rx Power MSB Internally measured Rx power 105 1 Rx Power LSB Internally measured Rx power 106-109 9 Reserved - GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 Description and Value of the Field 17 of 27 Proprietary & Confidential Table 4-4: Alarms and Real time Diagnostic information Block Address: A2h (Continued) Address Size 110 1 111 112 1 1 Name Description and Value of the Field Tx Disable State Bit 7: State of TX_DIS input pin Tx Disable Select Bit 6: Read/write bit that allows software disable of laser. Writing "1" disables laser. Reserved Bit 5-3 Tx Fault Bit 2: State of TX_FAULT output Rx LOS Bit 1: State of RX_LOS output Data_Ready Bit 0 Temp Update Bit 7 goes to high after a temperature update VCC Update Bit 6 goes to high after a VCC update Tx bias Update Bit 5 goes to high after a Tx bias current update Tx power Update Bit 4 goes to high after a Tx power update Rx power Update Bit 3 goes to high after a Rx input power update Reserved Bit 0 to Bit 2 Temp High Alarm Flag Bit 7, set when the internal temperature exceeds the high temp alarm threshold Temp Low Alarm Flag Bit 6, set when the internal temperature goes below the low temp alarm threshold Supply Voltage High Alarm Flag Bit 5, set when the internal VCC exceeds the supply voltage high alarm threshold Supply Voltage Low Alarm Flag Bit 4, set when the internal VCC goes below the supply voltage low alarm threshold Laser Bias High Alarm Flag Bit 3, set when the monitored laser bias current exceeds the laser bias high alarm threshold Laser Bias Low Alarm Flag Bit 2, set when monitored laser bias current goes below the laser bias low alarm threshold Tx Power High Alarm Flag Bit 1, set when the monitored Tx power exceeds the Tx power high alarm threshold Tx Power Low Alarm Flag Bit 0, set when monitored Tx power current goes below the Tx power low alarm threshold GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 18 of 27 Proprietary & Confidential Table 4-4: Alarms and Real time Diagnostic information Block Address: A2h (Continued) Address Size 113 1 Name Description and Value of the Field Rx Power High Alarm Flag Bit 7, set when the monitored Rx power exceeds the Rx power high alarm threshold Rx Power Low Alarm Flag Bit 6, set when the monitored Rx power goes below the Rx power low alarm threshold Reserved Bit 0 - 5 114-115 2 Reserved - 116 1 Temp High Warning Flag Bit 7, set when the internal temperature exceeds the high temp warning threshold Temp Low Warning Flag Bit 6, set when the internal temperature goes below the low temp warning threshold Supply Voltage High Warning Flag Bit 5, set when the internal VCC exceeds the supply voltage high warning threshold Supply Voltage Low Warning Flag Bit 4, set when the internal VCC goes below the supply voltage low warning threshold Laser Bias High Warning Flag Bit 3, set when the monitored laser bias current exceeds the laser bias high warning threshold Laser Bias Low Warning Flag Bit 2, set when monitored laser bias current goes below the laser bias low warning threshold Tx Power High Warning Flag Bit 1, set when the monitored Tx power exceeds the Tx power high warning threshold Tx Power Low Warning Flag Bit 0, set when monitored Tx power current goes below the Tx power low warning threshold Rx Power High Warning Flag Bit 7, set when the monitored Rx power exceeds the Rx power high warning threshold Rx Power Low Warning Flag Bit 6, set when the monitored Rx power goes below the Rx power low warning threshold Reserved Bit 0 - 5 Reserved - 117 118-127 1 10 GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 19 of 27 Proprietary & Confidential Table 4-5: Writeable Area Block Address: A2h Address Size Name Description and Value of the Field 128-247 120 User Writeable Area - 248-255 8 Reserved - GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 20 of 27 Proprietary & Confidential 5. Application Reference Design 5.1 Typical Application Circuit VCC_3V3 10k TX_FAULT ALARM VCC_3V3 VCC_3V3 4.7k 4.7k 2 I C CLK I 2C DATA 1 VEE 2 TX_DIS 20 TX_FAULT TD- 19 TD- 3 NC TD+ 18 TD+ 4 VEE VEE 17 5 I C CLK VCC_TX 16 6 I 2C DATA VCC_RX 15 7 8 RX_LOS ALARM 9 10k GO2951 10 VCC_3V3 2 14 VEE VEE RX_LOS RD+ NC RD- 12 NC VEE 11 13 TX_DIS Differential From GS2975A Reclocker VCC_3V3 100nF 100nF 100nF RD+ RD- Differential To GS2975A Reclocker Figure 5-1: Typical Application Circuit GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 21 of 27 Proprietary & Confidential 6. References and Relevant Standards Table 6-1: References and Relevant Standards INF-8074i Rev 1.0 SFP (Small Formfactor Pluggable) Transceiver SMPTE 259M-2008 SDTV Digital Signal/Data - Serial Digital Interface SMPTE 292M-2008 1.5 Gbps Signal / Data Serial Interface SMPTE 297-2006 Serial Digital Fiber Transmission System for SMPTE 259M, SMPTE 344M, SMPTE 292 and SMPTE 424M Signals SMPTE 344M-2000 540 Mbps Serial Digital Interface SMPTE 424M-2006 3 Gbps Signal/Data Serial Interface GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 22 of 27 Proprietary & Confidential 7. Package Information 7.1 Package Dimensions A common mechanical outline, as shown in Figure 7-1, is used for all SFP modules. Figure 7-1: Common SFP Package Outline GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 23 of 27 Proprietary & Confidential 7.2 PCB Layout Recommendations Notes: 1. All dimensions in mm. 2. Datum and basic dimensions established by customer 3. Pads and vias are chassis-ground in 11 places 4. Through-holes and plating are optional Figure 7-2: Host PCB Layout - Part 1 GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 24 of 27 Proprietary & Confidential All dimensions in mm Figure 7-3: Host PCB Layout - Part 2 7.3 Marking Information Table 7-1: Marking Information Label Code XX ZZZZZZZ Description 2-digit wavelength code 7-digit serial number UUUU Laser wavelength in nanometers YYYY Year of manufacture WW Week of manufacture Figure 7-4: GO2951 Marking Information GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 25 of 27 Proprietary & Confidential 7.4 Ordering Information Table 7-2: Ordering Information Part Number Package Wavelength Temperature Range GO2951-27CH SFP 1271nm 0C to 70C GO2951-29CH SFP 1291nm 0C to 70C GO2951-31CH SFP 1311nm 0C to 70C GO2951-33CH SFP 1331nm 0C to 70C GO2951-35CH SFP 1351nm 0C to 70C GO2951-37CH SFP 1371nm 0C to 70C GO2951-39CH SFP 1391nm 0C to 70C GO2951-41CH SFP 1411nm 0C to 70C GO2951-43CH SFP 1431nm 0C to 70C GO2951-45CH SFP 1451nm 0C to 70C GO2951-47CH SFP 1471nm 0C to 70C GO2951-49CH SFP 1491nm 0C to 70C GO2951-51CH SFP 1511nm 0C to 70C GO2951-53CH SFP 1531nm 0C to 70C GO2951-55CH SFP 1551nm 0C to 70C GO2951-57CH SFP 1571nm 0C to 70C GO2951-59CH SFP 1591nm 0C to 70C GO2951-61CH SFP 1611nm 0C to 70C GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 26 of 27 Proprietary & Confidential DOCUMENT IDENTIFICATION CAUTION DATA SHEET ELECTROSTATIC SENSITIVE DEVICES The product is in production. Gennum reserves the right to make changes to the product at any time without notice to improve reliability, function or design, in order to provide the best product possible. DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION GENNUM CORPORATE HEADQUARTERS Phone: +1 (905) 632-2996 Fax: +1 (905) 632-2055 4281 Harvester Road, Burlington, Ontario L7L 5M4 Canada E-mail: corporate@gennum.com www.gennum.com CANADA JAPAN KK TAIWAN Suite 320, 3553 31st St. N.W. Calgary, Alberta T2L 2K7 Canada Shinjuku Green Tower Building 27F 6-14-1, Nishi Shinjuku Shinjuku-ku, Tokyo, 160-0023 Japan 6F-4, No.51, Sec.2, Keelung Rd. Sinyi District, Taipei City 11052 Taiwan R.O.C. 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The sale of the circuit or device described herein does not imply any patent license, and Gennum makes no representation that the circuit or device is free from patent infringement. All other trademarks mentioned are the properties of their respective owners. GENNUM and the Gennum logo are registered trademarks of Gennum Corporation. (c) Copyright 2011 Gennum Corporation. All rights reserved. www.gennum.com GO2951 CWDM Optical Transceiver Data Sheet 57365 - 1 April 2012 27 of 27 27 Proprietary & Confidential IMPORTANT NOTICE Embrionix Design inc. and its subsidiaries (Embrionix) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. 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