1.25G 40km SFP (LC)

1.25Gbps SFP BIDI Optical Transceiver 20Km,40Km,80Km LC DDM Feature: Gi Obit Ethernet Gi Obit Fiber Channel SFP MSA package with Simplex LC connector Compliant with IEEE 802.3ah, Digital diagnostic monitor interface compatible with SFF-8472 transmission with 9/125 µm SMF Single 3.3V Power Supply and LVTTL Logic Very low EMI and excellent ESD protection Operating Case Temperature: 0°C ~+70°C RoHS compliant Class 1 laser safety certified Application: Ethernet Telecom Fiber Channel Absolute Maximum Ratings: Parameter Symbol Mi Ty Max Unit not l n p e Storage Temperature Ts -40 85 ºC Storage Ambient Humidity HA 5 95 % Power Supply Voltage VCC -0.5 4 V Signal Input Voltage -0.3 Vcc+0. 3 V Receiver Damage Threshold 5 dB m Operation Environment: Parameter Symbol Min Ty p Max Unit note Case Operating Temperature T case 0/40 70/85 Ambient Humidity HA 5 70 % Non-condensing Power Supply Voltage VCC 3.13 33 3.47 V Power Supply Current ICC 280 mA Power Supply Noise Rejection 10 0 M V P-P 100Hz to1MHz Data Rate 1.25 Gbps TX Rate/RX Rate Transmission Distance 0.55 120 KM Coupled Fiber Multi or Single mode fiber Optical Characteristics: (Ambient Operating Temperature 0˚ C to +70˚ C, Vcc =3.3 V) Parameter Symbol Min Type Max Unit note Average Output Power Pout -9.5 -3 dBm 0.55km 850nm -9 -3 dBm 3km 1310nmFP -9 -3 dBm 3km 1550nmFP -9 -3 dBm 10km 1310nmFP -9 -3 dBm 10km 1490nmDFB -9 -3 dBm 10km 1550nmDFB -2 +3 dBm 40km 1310nmDFB -5 0 dBm 40km 1490nmDFB -5 0 dBm 40km 1550nmDFB -2 +3 dBm 80km 1490nmDFB -2 +3 dBm 80km 1550nmDFB Extinction Ratio ER 9 dBm Electrical Characteristics: (Ambient Operating Temperature 0˚ C to +70˚ C, Vcc =3.3 V) Parameter Symbol Min. Typ. Max. unit Transmitter Section Input Differential Impendence Zin 90 100 110 Ohm Data Input Swing Differential Vin 500 2400 mV TX Disable Disable 2.0 Vcc V Enable 0 0.8 V TX Fault Assert 2.0 Vcc V Deassert 0 0.8 V Receiver Section Output differential impendence Zout 100 Ohm Data Input Swing Differential Vout 370 2000 mV Rx LOS Assert 2.0 Vcc V Deassert 0 0.8 V Center Wavelength λC 1270 1310 1360 nm 1310nm FP 1290 1310 1330 nm 1310nm DFB 1520 1550 1580 nm 1550nm DFB Spectrum Width (RMS) σ 4 nm FP Laser (TX:1310nm) Spectrum Bandwidth(-20dB) σ 1 nm 1550nm DFB 1 nm 1490nm DFB 1 nm 1310nm DFB Transmitter OFF Output Power Poff -45 dBm Differential Line Input Impedance Rin 90 10 0 110 0hm Total Jitter (Peak-Peak) tJ 41 PS Note (1) Output Eye Mask Compliant with IEEE802.3z (class 1 laser safety) Note (1) Note: (1): Measure at 2^7-1 NRZ PRBS pattern Note (2): Transmitter eye mask definition Specification of Receiver: Parameter Symbol Min Type Max Uni t note Input Optical Wavelength λIN 1270 1310 1610 n m Receiver Sensitivity PIN -22/-2 4 d Bm 15km～80kmNote (1) -30 120km Note (1) Input Saturation Power (Overload) PSA T - 3 d Bm Los Of Signal Assert PA - 35 d Bm PIN Receiver Los Of Signal De-assert PD -25 d Bm PIN Note (2) LOS Hysteresis PA-P D 0. 5 6 d B Note (1): Measured with Light source 1550nm(1310nm), ER=10dB; BER =<10^-12 @PRBS=2^7-1NRZ Note (2): When LOS de-asserted, the RX data+/- output is High-level (fixed) Electrical Characteristics: (Ambient Operating Temperature 0C to +70C, Vcc =3.3 V) Parameter Symbol Min. Typ. Max. unit Transmitter Section Input Differential Impendence Zin 90 100 110 Ohm Data Input Swing Differential Vin 500 2400 mV TX Disable Disable 2.0 Vcc V Enable 0 0.8 V TX Fault Assert 2.0 Vcc V Deassert 0 0.8 V Receiver Section Output differential impendence Zout 100 Ohm Data Input Swing Differential Vout 370 2000 mV Rx_LOS Assert 2.0 Vcc V Deassert 0 0.8 V Epsom Information（A0): Add Field Size (Bytes) Name of Fiel HEX Description 0 1 Identifier 03 SFP 1 1 Ext. Identifier 04 MOD4 2 1 Connector 07 LC 3-10 8 Transceiver 00 00 00 02 12 00 0D 0 Transmitter Code 11 1 Encoding 02 4B5B 12 1 BR, nominal 04 E2 1250M bps 13 1 Reserved 00 14 1 Length (9um)-km 14 20km 15 1 Length (9um) 64 16 1 Length (50um) 00 17 1 Length (62.5um) 00 18 1 Length (copper) 00 19 1 Reserved 00 20-35 16 Vendor name 57 49 4E 54 4F 50 20 20 36 1 Reserved 00 37- 39 3 Vendor OUI 00 00 00 40-55 16 Vendor PN xx xx xx xx xx xx xx x x ASC II 56- 59 4 Vendor rev 31 2E 30 20 V1.0 60- 61 2 Wavelength 05 1E/06 0E 1310nm/1550nm 62 1 Reserved 00 63 1 CC BASE XX Check sum of byte 0~62 64- 65 2 Options 00 1A LOS, TX_DISABLE, TX_FAULT 66 1 BR, max 32 50% 67 1 BR, min 32 50% 68- 83 16 Vendor SN 00 00 00 00 00 00 00 00 Unspecified 84- 91 8 Vendor date code XX XX XX 20 Year, Month, Day 92- 94 3 Reserved 00 95 1 CC-EXT XX Check sum of byte 64-94 Diagnostics: Parameter Range Accuracy Unit Calibration Temperature C -5 ~ 70 ±3 ºC Internal I -40 ~ 80 ±3 Voltage 0 ~ VCC 0.1 V Internal Bias Current 0 ~ 120 ±2 mA Internal Tx Power -5 ~ 0 ±1 dBm Internal Rx Power <0 ±1 dBm Internal Pin Description: Pin Symbol Name/Description Ref 1 VEET Transmitter Ground (Common with Receiver Ground) 1 2 TFAUL T Transmitter Fault. 2 3 TDIS Transmitter Disable. Laser output disabled on high oropen. 4 MOD_ DEF(2) Module Definition 2. Data line for Serial ID. 3 5 MOD_ DEF(1) Module Definition 1. Clock line for Serial ID. 3 6 MOD_ DEF(0) Module Definition 0. Grounded within the module 3 7 Rate Select No connection required 4 8 LOS Loss of Signal indication. Logic 0 indicates normal operation. 5 9 VEER Receiver Ground (Common with Transmitter Ground) 1 10 VEER Receiver Ground (Common with Transmitter Ground) 1 11 VEER Receiver Ground (Common with Transmitter Ground) 1 12 RD- Receiver Inverted DATA out. AC Coupled 13 RD+ Receiver Non-inverted DATA out. AC Coupled 14 VEER Receiver Ground (Common with Transmitter Ground) 1 15 VCCR Receiver Power Supply 16 VCCT Transmitter Power Supply 17 VEET Transmitter Ground (Common with Receiver Ground) 1 18 TD+ Transmitter Non-Inverted DATA in. AC Coupled. 19 TD- Transmitter Inverted DATA in. AC Coupled. 20 VEET Transmitter Ground (Common with Receiver Ground) 1 Notes: Circuit ground is internally isolated from chassis ground. Laser output disabled on T DIS >2.0V or open, enabled on T DIS <0.8V. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and3.6V. MOD_DEF (0) pulls line low to indicate module is plugged in. This is an optional input used to control the receiver bandwidth for compatibility with multiple data rates (most likely Fiber Channel 1x and 2x Rates). Ifimplemented, the input will be internally pulled down with > 30kΩ resistor. The input states are: Low (0 – 0.8V): Reduced Bandwidth (>0.8V,<2.0V):Undefined High(2.0– 3.465V):FullBandwidth Open: Reduced Bandwidth LOS is open collector output. Should be pulled up with 4.7k - 10kohms on host board to a voltage between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal. Recommended Application Circuit: Outline drawing (mm): Ordering information: Part Number Product Description 1.25SF1310-20LAT SFP 1.25G Tx1310nm/Rx1550nm 20km LC DDM 1.25SF1550-20LAT SFP 1.25G Tx1550nm/Rx1310nm 20km LC DDM 1.25SF1310-40LAT SFP 1.25G Tx1310nm/Rx1550nm 40km LC DDM 1.25SF1550-40LAT SFP 1.25G Tx1550nm/Rx1310nm 40km LC DDM 1.25SF1310-80LAT SFP 1.25G Tx1490nm/Rx1550nm 80km LC DDM 1.25SF1550-80LAT SFP 1.25G Tx1550nm/Rx1490nm 80km LC DDM