RoHS Compliant Single Mode SFP Transceiver for GbE and Fiber Channel FEATURES z Compliant with SFP Transceiver SFF-8472 MSA specification with internal calibration z Compliant with Specifications for IEEE 802.3z/Gigabit Ethernet z Single + 3.3V Power Supply and TTL Logic Interface z EEPROM with Serial ID Functionality z Laser Class 1 Product which comply with the requirements of IEC 60825-1 and IEC 60825-2 z Duplex LC Connector interface Description Applications z Gigabit Ethernet The LCP-1250 series are hot pluggable 3.3V z Switch to Switch interface Small-Form-Factor transceiver modules designed expressly for high-speed communication applications that require rates up to 1.25Gb/s. The transceiver is data rate transparent, which means it can support GbE (1.25Gb/s) as well as 1x Fiber channel (1.062Gb/s) operations The LCP-1250 series are designed to be compliant with SFP Multi-source Agreement z Switched backplane applications z File server interface Performance z LCP-1250B4Mxx: 1310nm DFB laser, 19dB link budget (40km) z LCP-1250D4Mxx: 1550nm DFB laser, 17dB link budget (40km) (MSA). Digital diagnostic monitoring functions (Temperature, VCC, TX optical power, TX laser bias current, and RX received optical power) compliant with SFF-8472 are also available. See order information for details. The post-amplifier of the LCP-1250 series also includes a Loss of Signal (LOS) circuit that provides a TTL logic-high output when the z LCP-1250D4Wxx: 1550nm DFB laser, 21dB link budget (70km) z LCP-1250D4Rxx: 1550nm DFB laser, 24dB link budget (80km) z LCP-1250D4Vxx: 1550nm DFB laser, 30dB link budget (100km) received optical level is below a preset LOS Assert threshold. 1 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com Absolute Maximum Ratings Parameter Storage Temperature Supply Voltage Symbol Ts VCC Min. -40 0 Typ. Max. 85 5 Unit ºC V Note Min. -5 3.135 Typ. Max. 70 3.465 Unit ºC V Note 1 Unit mA Note V V V kΩ V V 1 2 2 2 V kΩ V V psec 3 2 2 2 4 Recommended Operating Conditions Parameter Case Operating Temperature Supply Voltage Symbol TC VCC Note 1: See order information Electrical Characteristics (VCC=3.3V ± 5%) Parameter Symbol Min. Typ. Max. Total Supply Current ICCT 300 Transmitter Transmitter Differential Input Voltage VDT 0.5 2.4 Transmitter Disable Input-High VDISH 2 VCC+0.3 Transmitter Disable Input-Low VDISL 0 0.8 Transmitter Fault Pull up Resistor RTX_FAULT 4.7 10 Transmitter Fault Output-High VTXFH 2 VCC+0.3 Transmitter Fault Output-Low VTXFL 0 0.8 Receiver Receiver Differential Output Voltage VDR 0.35 2 Receiver LOS Load RRXLOS 4.7 10 LOS Output Voltage-High VLOSH 2 VCC+0.3 LOS Output Voltage-Low VLOSL 0 0.8 Output Data Rise/Fall Time tr / t f 220 Notes: 1. Internally AC coupled and terminated to 100Ohm differential load. 2. Pull up to VCC on host Board 3. Internally AC coupled, but requires a 100Ohm differential termination at or internal to Serializer/ Deserializer. 4. These are 20%~80% values 2 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com Optical Characteristics (VCC=3.3V ± 5%, Data Rate=1250Mb/sec, PRBS=27-1 NRZ) Parameter Symbol Min. Typ. Max. Transmitter Output Optical Power (Avg.) 1 -4 LCP-1250B4Mxx 1 -4 LCP-1250D4Mxx PO 2 -3 LCP-1250D4Wxx 5 0 LCP-1250D4Rxx 5 0 LCP-1250D4Vxx Optical Extinction Ratio ER 9 Center Wavelength λC 1355 1310 1274 LCP-1250B4 Series 1570 1550 1530 LCP-1250D4 Series Spectral Width σ LCP-1250B4Mxx (-20dB) 1 LCP-1250D4 Series (-20dB) 1 Side-mode Suppression Ratio SMSR LCP-1250B4Mxx 30 LCP-1250D4 Series 30 Optical Rise/ Fall Time tr/tf 260 Relative Intensity Noise RIN -120 Output Eye Compliant with IEEE 802.3z Receiver Sensitivity (Avg.) -23 LCP-1250B4Mxx LCP-1250D4Mxx -21 PIN -24 LCP-1250D4Wxx -24 LCP-1250D4Rxx -30 LCP-1250D4Vxx λ Input Optical Wavelength 1270 1570 LOS-Deasserted (Avg.) -23 LCP-1250B4Mxx -21 LCP-1250D4Mxx PA -24 LCP-1250D4Wxx -24 LCP-1250D4Rxx -30 LCP-1250D4Vxx LOS-Asserted (Avg.) PD -40 LOS-Hysteresis PA-PD 0.5 Overload -1 LCP-1250B4Mxx PO -1 LCP-1250D4 Series -9 LCP-1250D4Vxx Notes: 1. These are unfiltered 20%~80% values Unit Note dBm dB nm nm dB psec dB/Hz 1 dBm 2 nm dBm dBm dB dBm 2. The sensitivity is provided at a BER of 1×10-12or better with an input signal consisting of 1250Mb/s, 27-1 PRBS and ER=9dB. 3 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com Mask of the eye diagram for the optical transmit signal SFP Transceiver Electrical Pad Layout 4 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com Pin Function Definitions Pin Num. 1 2 Name VeeT TX Fault Function Transmitter Ground Transmitter Fault Indication Plug Seq. 1 3 3 TX Disable Transmitter Disable 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 MOD-DEF2 MOD-DEF1 MOD-DEF0 Rate Select LOS VeeR VeeR VeeR RDRD+ VeeR VccR VccT VeeT TD+ TDVeeT Module Definition 2 Module Definition 1 Module Definition 0 Not Connect Loss of Signal Receiver Ground Receiver Ground Receiver Ground Inv. Received Data Out Received Data Out Receiver Ground Receiver Power Transmitter Power Transmitter Ground Transmit Data In Inv. Transmit Data In Transmitter Ground 3 3 3 3 3 1 1 1 3 3 1 2 2 1 3 3 1 Notes Note 1 Note 2 Module disables on high or open Note 3, 2 wire serial ID interface Note 3, 2 wire serial ID interface Note 3, Grounded in Module Function not available Note 4 Note 5 Note 5 Note 5 Note 6 Note 7 Note 5 3.3 ± 5%, Note 7 3.3 ± 5%, Note 7 Note 5 Note 8 Note 8 Note 5 Plug Seq.: Pin engagement sequence during hot plugging. Notes: 1) TX Fault is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor on the host board. Pull up voltage between 2.0V and VccT, R+0.3V. When high, output indicates a laser fault of some kind. Low indicates normal operation. In the low state, the output will be pulled to < 0.8V. 2) TX disable is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7 – 10 K Ω resistor. Its states are: Low (0 – 0.8V): Transmitter on (>0.8, < 2.0V): Undefined High (2.0 – 3.465V): Transmitter Disabled Open: Transmitter Disabled 3) Mod-Def 0,1,2. These are the module definition pins. They should be pulled up with a 4.7K – 10KΩresistor on the host board. The pull-up voltage shall be VccT or VccR (see Section IV for further details). Mod-Def 0 is grounded by the module to indicate that the module is present Mod-Def 1 is the clock line of two wire serial interface for serial ID Mod-Def 2 is the data line of two wire serial interface for serial ID 4) LOS (Loss of Signal) is an open collector/drain output, which should be pulled up with a 4.7K – 10KΩ resistor. Pull up voltage between 2.0V and VccT, R+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity (as defined by the standard in use). Low indicates normal operation. In the low state, the output will be pulled to < 0.8V. 5) VeeR and VeeT may be internally connected within the SFP module. 6) RD-/+: These are the differential receiver outputs. They are AC coupled 100Ω differential lines which should be terminated with 100Ω (differential) at the user SERDES. The AC coupling is done inside the 5 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com module and is thus not required on the host board. The voltage swing on these lines will be between 370 and 2000 mV differential (185 – 1000 mV single ended) when properly terminated. 7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Maximum supply current is 300mA. Recommended host board power supply filtering is shown below. Inductors with DC resistance of less than 1 ohm should be used in order to maintain the required voltage at the SFP input pin with 3.3V supply voltage. When the recommended supply-filtering network is used, hot plugging of the SFP transceiver module will result in an inrush current of no more than 30mA greater than the steady state value. VccR and VccT may be internally connected within the SFP transceiver module. 8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100Ω differential termination inside the module. The AC coupling is done inside the module and is thus not required on the host board. The inputs will accept differential swings of 500 – 2400 mV (250 – 1200 mV single-ended), though it is recommended that values between 500 and 1200 mV differential (250 – 600 mV single-ended) be used for best EMI performance. Recommend Circuit Schematic VCC 1uH 3.3V DELTA SFP Module Protocol Vcc 1uH RES1 10uF 0.1uF 0.1uF VccT 10k Ohms Tx_Disable Tx_Disable Tx_Fault Tx_Fault TD + 0.01uF 100 Ohms Laser Driver Laser Diode TD - Protocol IC 0.01uF VeeT SerDes IC VccR RES1 10uF 0.1uF RD + 0.01uF RD - 0.01uF 100 Ohms* Preamp & Quantizer Photo Diode Rx_LOS Rx_LOS 3.3V VeeR RES1 RES1 RES1 PLD / PAL Mod_def 2 EEPROM Mod_def 1 Mod_def 0 RES1 = 4.7k to 10k Ohms * Depands on SerDes IC used 6 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com Package Outline Drawing 7 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com SFP timing parameters for SFP management Parameter TX_DISABLE Assert time TX_DISABLE Negate time Time to initialize, including reset of TX_FAULT TX Fault Assert Time TX_DISABLE to reset LOS Assert Time LOS Deassert Time Serial ID Clock Rate Symbol t_off t_on Min. t_init t_fault t_rest t_loss_on t_loss_off f_serial_clock Max. 10 1 Unit μsec msec Note 1 2 300 msec 3 100 μsec μsec μsec μsec kHz 4 5 6 7 10 100 100 100 Notes: 1) Time from rising edge of TX_DISABLE to when the optical output falls below 10% of nominal 2) Time from falling edge of TX_DISABLE to when the modulated optical output rises above 90% of nominal 3) From power on or negation of TX_Fault using TX Disable 4) Time from fault to TX fault on. 5) Time TX Disable must be held high to reset TX_Fault 6) Time from LOS state to Rx LOS assert 7) Time from non-LOS state to Rx LOS deassert 8 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com Enhanced Digital Diagnostic Interface The memory map in the following describes an extension to the memory map defined in SFP MSA. The enhanced interface uses the two wire serial bus address 1010001X(A2h) to provide diagnostic information about the module’s present operating conditions. 2 wire address 1010000 X (A0h) 2 wire address 1010001 X (A2h) 0 0 Alarm and Warning Thresholds (56 bytes) 55 Serial ID Defined by SFP MSA (96 bytes) 56 Cal Constants (40 bytes) 95 96 95 96 Real Time Diagnostic Interface (24 bytes) 119 Vender Specific (32 bytes) 120 Vender Specific 127 127 128 128 Reserved in SFP MSA (128 bytes) 247 248 255 255 User Writable EEPROM (120 bytes) Vender Specific (8 bytes) Digital Diagnostic Memory Map Specific Data Field Descriptions 9 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com EEPROM Serial ID Memory Contents (2-Wire Address A0h) Address 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Hex 03 04 07 00 xx xx xx 00 00 00 00 01 0D 00 xx xx 00 00 00 00 44 45 4C 54 41 20 20 20 20 20 20 20 20 20 20 20 00 00 00 00 PN PN PN ASCII Note 1 Note 2 Note 3 D E L T A Note 4 Address 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 Hex PN PN PN PN PN PN PN PN PN PN PN PN PN 30 30 30 0A CW CW 00 CS1 00 1A 05 05 SN SN SN SN SN SN SN SN SN SN SN SN SN SN SN SN DC DC ASCII Note 5 Note 5 Note 6 Note 7 Note 8 Address 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 Hex DC DC DC DC DC DC 68 B0 02 CS2 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ASCII Note 9 Note 10 Notes: 1) Byte 3~10: Code for electronic compatibility or optical compatibility. 2) Byte 14:Transmission distance in km 3) Byte 15: Transmission distance in 100m, distance >25.5km: FFh 4) Byte 40-55: Delta part number 5) Byte 60-61: The center wavelength of transmitter 6) Byte 63: Check sum of bytes 0-62. 7) Byte 68-83: Serial number. 8) Byte 84-91: Date code. 10 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com 9) Byte 95: Check sum of bytes 64-94. 10) Byte 128 to 255 had been set hex 00. Digital Diagnostic Monitoring Interface Alarm and Warning Thresholds (2-Wire Address A2h) Address # Bytes 00-01 02-03 04-05 06-07 08-09 10-11 12-13 14-15 16-17 18-19 20-21 22-23 24-25 26-27 28-29 30-31 32-33 34-35 36-37 38-39 40-45 56-91 92-94 95 96-97 98-99 100-101 102-103 104-105 106-109 110 111 112-119 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 16 36 3 1 2 2 2 2 2 4 1 1 8 Name Temp High Alarm Temp Low Alarm Temp High Warning Temp Low Warning Voltage High Alarm Voltage Low Alarm Voltage High Warning Voltage Low Warning Bias High Alarm Bias Low Alarm Bias High Warning Bias Low Warning TX Power High Alarm TX Power Low Alarm TX Power High Warning TX Power Low Warning RX Power High Alarm RX Power Low Alarm RX Power High Warning RX Power Low Warning Reversed External Calibration Constants Reversed Checksum Real Time Temperature Real Time Supply Voltage Real Time Tx Bias Current Real Time Tx Optical Power Real Time Rx Received Power Reserved Optional Status/ Control Bits Reserved Optional Set of Alarm and Warning Value (Dec.) Unit Note TC (MAX.)+15 TC (MIN.) TC (MAX.)+10 TC (MIN.)+10 Vcc+5% Vcc-5% Vcc+3% Vcc-3% IOP*2+35 IOP-13 IOP *2+30 IOP –8 P+3 P-3 P+2 P-2 P0+3 PS-2 P0+2 PS ℃ 1 Volt mA 2 dBm 3 dBm 4 5 6 7 Notes: 1) TC: Case Operating temperature 2) IOP: Operating current at room temperature. The min. setting current is 0 mA. 3) P: Operating optical power of transmitter at room temperature. 4) P0: Overload optical power of receiver PS: Sensitivity optical power of receiver 11 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com 5) Byte 95 contains the low order 8bits of sum of bytes 0-94 6) State/ Control Bits Byte 110 110 110 110 110 110 110 110 Bit 7 6 5 4 3 2 1 0 Name Tx Disable State Soft Tx Disable Reserved Rate Select tate Soft Rate Select Tx Fault LOS Data_Ready_Bar Description Digital state of the Tx disable input pin Read/ Write bit that allow software disable of laser NA NA Digital state of the Tx fault output pin Digital state of the LOS output pin. NA 7) Optional Set of Alarm and Warning Byte 112 112 112 112 112 112 112 112 113 113 113 116 116 116 116 116 116 116 116 117 117 117 Bit 7 6 5 4 3 2 1 0 7 6 5-0 7 6 5 4 3 2 1 0 7 6 5-0 Name Temp High Alarm Temp Low Alarm Vcc High Alarm Vcc Low Alarm Tx Bias High Alarm Tx Bias Low Alarm Tx Power High Alarm Tx Power Low Alarm Rx Power High Alarm Rx Power Low Alarm Reserved Temp High Warning Temp Low Warning Vcc High Warning Vcc Low Warning Tx Bias High Warning Tx Bias Low Warning Tx Power High Warning Tx Power Low Warning Rx Power High Warning Rx Power Low Warning Reserved Description Set when internal temperature exceeds high alarm level Set when internal temperature is below low alarm level Set when internal supply voltage exceeds high alarm level Set when internal supply voltage is below low alarm level Set when Tx Bias current exceeds high alarm level Set when Tx Bias current is below low alarm level Set when Tx output power exceeds high alarm level Set when Tx output power is below low alarm level Set when received power exceeds high alarm level Set when received power is below low alarm level Set when internal temperature exceeds high warning level Set when internal temperature is below low warning level Set when internal supply voltage exceeds high warning level Set when internal supply voltage is below low warning level Set when Tx Bias current exceeds high warning level Set when Tx Bias current is below low warning level Set when Tx output power exceeds high warning level Set when Tx output power is below low warning level Set when received power exceeds high warning level Set when received power is below low warning level Digital Diagnostic Monitor Accuracy Parameter Typical Value Note ± 3℃ ± 3% ± 10% ± 1.5dB ± 3dB 1 2 Transceiver Temperature Power Supply Voltage TX Bias Current TX Optical Power RX Optical Power Notes: 1) Temperature is measured internal to the transceiver. 12 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com 2) Voltage is measured internal to the transceiver. Regulatory Compliance Test Item (#1) Electromagnetic Interference EMC (#2) Immunity： Radio Frequency Electromagnetic Field (#3) Immunity： Electrostatic Discharge to the Duplex SC Receptacle (#4) Electrostatic Discharge to the Electrical Pins Reference Qty’ FCC Class B EN 55022 Class B CISPR 22 5 EN 61000-4-3 IEC 1000-4-3 5 Evaluation (1) Satisfied with electrical characteristics of product spec. EN 61000-4-2 IEC 1000-4-2 IEC 801.2 5 (2) No physical damage MIL-STD-883C Method 3015.4 EIAJ#1988.3.2B Version 2, Machine model 5 Ordering information for SFP modules LCP-1250X1X2X3X4X5X6 X1: Fiber X4: Digital Diagnostic Function B: Single-mode 1310nm D: Single-mode 1550nm D: with digital diagnostic function X2: Power Supply Voltage and SD Level X5: RoHS Compliance 4: 3.3V, TTL SD Level R: RoHS Compliant X6: Temperature X3: Distance Blank: -5 to +70 degree C H: -10 to +85 degree C T: -40 to +85 degree C M: 40km W: 70km R: 80km V: 100km Revision History Rev 6A Date Contents Aug., 2006 First release 13 DELTA ELECTRONICS, INC. Aug., 2006 Rev. 6A www.deltaww.com