SPBD-3072B4K1RDT Intelligent SFP Bi-Directional Transceiver Module for Gigabit Ethernet FEATURES RoHS compliant Compliant with SFP Transceiver SFF-8472 MSA specification with internal calibration Compliant with OBSAI or CPRI protocols for wireless base station Simplex LC connector with 1490nm Transmitter and 1310nm Receiver Single + 3.3V power supply and TTL logic interface Support Commercial and Industrial temperature range Description The transceiver is hot pluggable 3.3V Small-Form-Factor (SFP) Bi-Directional transceiver module designed expressly for high-speed communication applications that require rates of up to 3072Mbit/sec. Application 3.072 Gbps CPRI/OBSAI application Switch to switch/backbone interface The transceivers provide with the LC receptacle that is compatible with the industry standard LC connector. The transceiver is also compatible with industry standard RFT connector and cage. It also includes a LOS (Loss Of Signal) circuit that provides a TTL logic-high output when an unusable optical signal level is detected. Performance Data link up to 20km in 9/125um single mode fiber. The module includes un-cool DFB laser, InGaAs PIN, Preamplifer and WDM filter in a high-integrated optical assembly for high-density system application. The SFP Bi-Directional transceiver can upgrade transmission capacity very convenient without installing new fibers. 1 DELTA ELECTRONICS, INC. Revision: S0 10/19/2012 www.deltaww.com SPBD-3072B4K1RDT Absolute Maximum Ratings Parameter Storage Temperature Storage Ambient Humidity Power Supply Voltage Signal Input Voltage Receiver Damage Threshold Symbol Ts HA VCC Min. -40 5 0 -0.3 +3 Typ. Max. 85 95 4.0 3.8 Unit ºC % V V dBm Note Min. -40 5 3.135 Typ. Max. 85 95 3.465 300 100 3.072 Unit ºC % V mA mVp-p Note 1 Recommended Operating Conditions Parameter Operating Case Temperature Ambient Humidity Power Supply Voltage Power Supply Current Power Supply Noise Rejection Symbol TC HA VCC ICC 3.072 Data Rate -100ppm Coupled Fiber Transmission Distance 3.3 3.072 +100ppm Single Mode Fiber 20 Non-condensing 100Hz to 1MHz Gbps ITU-T G.652 km Note: 1. Measured on topside of case front center. Specification of Transmitter Parameter Average Launched Power Optical Extinction Ratio Center Wavelength Spectrum Width (-20dB) Side Mode Suppression Ratio Transmitter OFF Output Power Relative Intensity Noise Transmitter Return Loss Tolerance Symbol PO ER λC σ SMSR POff RIN12OMA Min. -2 6 1480 Typ. Max. 1.5 1490 1500 0.88 30 -45 -113 15 Unit dBm dB nm nm dB dBm dB/Hz dB Note 1 DFB Laser Note: 1. Launched power (avg.) is power coupled into a single mode fiber. Specification of Receiver Parameter Input Optical Wavelength Receiver Sensitivity Input Saturation Power (Overload) LOS-Deassert Power LOS-Assert Power LOS Hysteresis Reflectance Symbol λIN PIN PSAT PA PD PA-PD Min. 1275 1.5 -34 0.5 Typ. 1310 Max. 1355 -23 -23 5 -15 Unit nm dBm dBm dBm dBm dB dB Note PIN-PD 1 2 Note: -12 7 1. Measured withλIN, ER=6 dB; BER =<10 @PRBS=2 -1 @3.072Gbps 2. When LOS asserted, the data output is Low-level (fixed) 2 DELTA ELECTRONICS, INC. Revision: S0 10/19/2012 www.deltaww.com SPBD-3072B4K1RDT Electrical Interface Characteristics Parameter Transmitter Total Supply Current Differential Data Input Swing Differential line input Impedance Transmitter Disable Input-High Transmitter Disable Input-Low Transmitter Fault Output-High Transmitter Fault Output-Low Transmitter Fault Pull up Resistor Receiver Total Supply Current Differential Data Output Swing LOS Output Voltage-High LOS Output Voltage-Low Receiver LOS Load Symbol Min. ICC VDT RIN VDISH VDISL VTXFH VTXFL RTX_FAULT 400 80 2 0 2 0 4.7 ICC VDR VLOSH VLOSL RRXLOS 400 2 0 4.7 Typ. 100 Max. Unit Note A 2000 120 VCC 0.8 VCC+0.3 0.8 10 mA mVp-p Ohm V V V V kΩ 1 B 1200 VCC+0.3 0.8 10 mA mVp-p V V kΩ 2 3 1 4 3 Note: 1. A (TX)+ B (RX) = 300mA (A: Not include termination circuit; B: using a resister of 150Ω between Data-output and ground) 2. There is an internal 4.7 to 10kΩ pull-up resistor to VccT. 3. Pull up to VCC on host Board. 4. Internally AC coupled with CML output, but requires a 100Ohm differential termination at or internal to Serializer/ Deserializer. Digital Diagnostic Monitor Accuracy Parameter Transceiver Internal Temperature Power Supply Internal Voltage TX Bias Current TX Optical Power RX Optical Power Accuracy ± 3ºC ± 3% ± 10% ± 3dB ± 3dB Unit ºC V mA dB dB 3 DELTA ELECTRONICS, INC. Calibration Internal Internal Internal Internal Internal Note Specified by TC VCC=3.3V±5% Specified by nominal bias value -2 to 1.5dBm -23 to 0dBm Revision: S0 10/19/2012 www.deltaww.com SPBD-3072B4K1RDT Pin Description SFP Transceiver Electrical Pad Layout Host Board Connector Pad Layout Pin Function Definitions Pin Num. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Name VeeT TX Fault TX Disable MOD-DEF2 MOD-DEF1 MOD-DEF0 Rate Select LOS VeeR VeeR VeeR RDRD+ VeeR VccR VccT VeeT TD+ TDVeeT Function Transmitter Ground Transmitter Fault Indication Transmitter Disable 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 Plug Seq. 1 3 3 3 3 3 3 3 1 1 1 3 3 1 2 2 1 3 3 1 Notes Note (1) Note (2) Note (3) Note (4), 2 wire serial ID interface Note (4), 2 wire serial ID interface Note (4), Grounded in Module Function not available Note (5) Note (6) Note (6) Note (7) Note (7) Note (8) Note (8) Plug Seq.: Pin engagement sequence during hot plugging. Notes: 1) Circuit ground is internally isolated from frame (chassis) ground. Tx GND and Rx GND may be internally isolated within the TRx module. 2) 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+0.3V. The output indicates Low when the transmitter is operating 4 DELTA ELECTRONICS, INC. Revision: S0 10/19/2012 www.deltaww.com SPBD-3072B4K1RDT normally, and High with a laser fault including laser end-of-life. In the low state, the output will be pulled to less than 0.8V. 3) 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: 4) Low (0 – 0.8V): Transmitter on (>0.8, < 2.0V): Undefined High (2.0 – 3.465V): Transmitter Disabled Open: Transmitter Disabled 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. 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 5) 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 VccR+0.3V. When high, this output indicates the received optical power is below the worst-case receiver sensitivity. Low indicates normal operation. In the low state, the output will be pulled to less than 0.8V. 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 module and is thus not required on the host board. 7) VccR and VccT are the receiver and transmitter power supplies. They are defined as 3.3V ±5% at the SFP connector pin. Recommended host board power supply filtering is shown below page. 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 30 mA greater than the steady state value. 8) TD-/+: These are the differential transmitter inputs. They are AC-coupled, differential lines with 100 Ω 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. 5 DELTA ELECTRONICS, INC. Revision: S0 10/19/2012 www.deltaww.com SPBD-3072B4K1RDT Recommend Interface Circuit 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 Preamp & Quantizer 100 Ohms* 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 SFP Host Board Schematic Design criterion of the capacitor used is the resonant frequency and its value must be in the order of the nominal data rate. Short trace lengths are mandatory. Recommended Host Board Supply Filtering Network 6 DELTA ELECTRONICS, INC. Revision: S0 10/19/2012 www.deltaww.com SPBD-3072B4K1RDT Outline Dimensions Appendix A. Document Revision Version No. S0 Date 2012-10-19 Description First release 7 DELTA ELECTRONICS, INC. Revision: S0 10/19/2012 www.deltaww.com