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| IEEE 1394b S200 Transceiver Pair PRELIMINARY PRODUCT SPECIFICATION FDL300E/FDL300D 650 nm 250 Mbps Fiber Optic Transceiver Solution for Seamless Digital to Light/ Light to Digital Conversion FEATURES * Meets the IEEE 1394b S200 (250 Mbps) specification * Integrated CMOS driver IC * Resonant Cavity LED at red 650 nm with small emission aperture suitable for Plastic Optical Fiber (POF) * Resonant Cavity LED reliability tested to over 400,000 hours lifetime * Configured for IEEE 1394b with LVDS I/O * High sensitivity receiver IC and pin-diode for one-step light to digital conversion * Compatible with SMI connector form factor * Integrated optics to efficiently focus and direct light * Ultra-low power consumption DESCRIPTION Firecomms RCLED-based 650 nm fiber optic transceiver (FOT) solution provides a seamless digital media to red light conversion, and subsequent recovery for performance at maximum speed in POF applications such as IEEE 1394b S200. The FOTs operate at LVDS signal levels directly compatible with IEEE 1394b PHY ICs. The FOT solution pairs Firecomms RCLED (Resonant Cavity Light Emitting Diode) technology with an encapsulated driver IC for coupling digital media signals to light in a POF link. At the receive side, the solution provides a 250 Mbps capacity light receiver in an integrated package that recovers digital media compatible signals (IEEE 1394 LVDS). The integration of the emitter Tx FOT with its driver IC and a pin-diode Rx FOT with a receiver IC in a POF link provides for a high-integrity digital data link over a range of up to 50m at 250 Mbps (S200), depending on installation conditions. FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 2 APPLICATIONS Application Home/Office Network Home/Office Network, High Speed Standard IEEE 1394b S100 IEEE 1394b S200 [1] Distance Speed 125 Mbps 250 Mbps 100 meters 50 meters A B S O L U T E M A X I M U M R A T I N G S [1] Parameter Storage Temperature Operating Temperature Soldering Temperature[2] Supply Voltage Notes: 1. These are absolute maximum ratings at or beyond which the FOT can be expected to be damaged. 2. 260C, 5s 3 times, at least 2.2 mm away from lead root. Symbol Tstg Top Minimum -40 -20 Maximum +100 +70 +260 [1] Unit C C C V VCC -0.5 +4.5 FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 3 TRANSMITTER ELECTRICAL CHARACTERISTICS Parameter Baud Rate for IEEE 1394b S200 Supply Voltage Current Consumption Data Input Capacitance Data Input Resistance (Single-ended) Input Common-Mode Range Input Voltage Swing Input Guaranteed Wake Voltage Input Guaranteed Sleep Voltage Optical Power OFF Delay Optical Power ON Delay Current Consumption in Sleep Mode Symbol Baud Rate VCC ICC CIN RIN VIN-BIAS VIN-SWING VIN-WAKE VIN-SLEEP TPD TPU ICC-sleep GND+0.8 100 50 25 0.02 5 VDD-0.8 1200 100 95 20 5 20 3.0 3.3 Minimum Typical Maximum 250 3.6 55 5 Unit MBd V mA pF k V mV mV mV s s uA TRANSMITTER PIN DESCRIPTION Pin 1 2 3 4 5 Name Data Input (Negative) Data Input (Positive) Ground Pin Input DC Power Pin Input, -3dB Power Down (Forces output power to drop by 3dB) Symbol TDTD+ GND VCC Rex FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 4 TRANSMITTER SPECIAL FUNCTIONS Function Rex Description The function of the Rex pin is to allow the user to adjust the optical power of the FOT by changing the drive current of the RCLED. The pin has three settings: (1) Rex is pulled to ground (set to low). This is the default position and in this case the part is set to the internal default drive current of the FOT. This is the recommended setting for normal operation. (2) The Rex pin is pulled high (set to rail voltage 3.3V). The power of the FOT is reduced by 3 dBm. This function can be used by a system designer to perform an end of life test. (3) The drive current of the device can be externally set and varied at will by placing a 15k Ohm variable resistor between Rex and ground. It is not recommended to use this for standard operation, especially in applications that are sensitive to current consumption as the external variable resistor can cause higher than normal current consumption. If the FOT does not see data on its differential pins for more than 5 us, the FOT is switched into a sleep state where the optical output is switched off and the current consumption is reduced to a maximum of 20uA. For a full description, refer to the section Power Management Functions. Sleep-State TRANSMITTER OPTICAL CHARACTERISTICS Parameter Peak Wavelength (TA=-20 to 70C) Spectral Bandwidth (FWHM) Average Output Power Coupled into Plastic Fiber at TA=-20 to 70C Optical Rise Time, S200 (20%-80%) Optical Fall Time (80%-20%) Extinction Ratio Maximum Systematic Jitter, Light Output at TP2[1] Maximum Random Jitter, Light Output at TP2[1] Symbol peak P tr tf RE S200 10 0.855 -8.5 1.5 2.0 Minimum 640 Typical 660 23 Maximum 670 30 -2.0 2.0 3.0 Unit nm nm dBm ns ns dB ns S200 0.855 ns Note: 1. TP2, test point 2, is the standard test point representing a point in an optical link located 50cm into the fiber from the transmitter side. This is a standard point of reference quoted in the IEEE 1394b and IDB-1394 standards. FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 5 RECEIVER ELECTRICAL CHARACTERISTICS Parameter Vcc Icc (Normal Operation) Icc - Sleep State Output Impedence Between D and D Offset Voltage for LVDS Differential Output Voltage (LVDS) SD (Signal Detect) On Output Voltage SD (Signal Detect) Off Output Voltage SD (Signal Detect) Assert Level SD (Signal Detect) Deassert Level SD (Signal Detect) Assert Time SD (Signal Detect) Deassert Time High Level Output Voltage Low Level Output Voltage Maximum Systematic Jitter, Electrical Output at TP4 (S200)[1] Maximum Random Jitter, Electrical Output at TP4 (S200)[1] Note: 1. TP4, test point 4, is the electical interface of the receiver which corresponds to the standard as set in IEEE 1394b and IDB-1394 standards. Minimum 3.0 Typical 3.3 Maximum 3.6 45 20 Unit V mA uA V 100 1.2 300 2.4 0 -28 -32 0.6 0.6 -27 -29 5 5 0.4 -24 -24.5 100 100 1.475 0.925 1200 700 400 mV V V dBm dBm us us V V ps p-p ps p-p FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 6 RECEIVER PIN DESCRIPTION Pin 1 2 3 4 5 Name Input DC Power Pin Ground Pin Output Signal Detect Data Input (Negative) Data Input (Positive) Symbol VCC GND SD RDRD+ RECEIVER SPECIAL FUNCTIONS Function Sleep Function for Power Saving Applications SD (Signal Detect) Description If the Rx FOT does not see optical data on its PD (photo detector) for more than 5 us, the FOT is switched into a sleep state where the main IC is switched off and the current consumption is reduced to a maximum of 20uA. At this point there is no electrical output from the device. For a full description of this function refer to the section Power Management Functions. This is an LVCMOS-type signal with output high of 2.4V and output low of 0.4V. RECEIVER OPTICAL CHARACTERISTICS Parameter Receivable Power Rise/Fall Time (10%-90%) Symbol Minimum -24 Typical Maximum -2 2 Unit dBm ns FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 7 GENERAL TEST APPLICATION CIRCUIT Figure 1. General application circuit. FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 8 IEEE 1394 APPLICATION CIRCUIT Figure 2 illustrates the correct configuration for the interface between the Texas Instruments 1394b PHY (part number TSB41BA3B) and the Firecomms Tx and Rx FOT pair, part numbers FDL300E and FDL300D. Figure 2. Circuit schematic for interface between a T1 1394b PHY and Firecomms FOTs. Note on Reduced Power Consumption Firecomms FOTs do not need a level-shifting circuit between the PHY and FOT as the differential I/O swings have been matched. The result of this PHY and FOT I/O matching is the elimination of power consumption by the level shifting circuit. Previously, FOT designs required a level shifting network (LVDS to LVPECL) which consumed approximately 33 mA from the power rail (Vcc) for each I/O. In that design, power consumption continued irrespective of the PHY IC and even if the FOTs were powered down or in sleep states. With the Firecomms FOT solution, this power consumption has been eliminated. In the circuit shown in Figure 2, once the PHY and FOTs enter a sleep state the power consumption is reduced to the data sheet values for PHY and FDL300 sleep states. There is no residual power consumption from the interface circuit. Similarly, if the PHY and the FOTS experience a hard power-down, current consumption goes to zero. FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 9 MECHANICAL DATA FDL300E-120 FDL300D-120 Figure 3. Mechanical data for the Firecomms integrated transmitter FDL300E and integrated receiver FDL300D. Notes: A. The metal projections at the top corners of the package are internally connected and should not come into electrical contact with any metal surface, ground plane or circuit board. B. The alignment ring (diameter 3.25/4.10) is the primary mechanical reference for alignment of the fiber. FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 10 PCB LAYOUT FOR SMI CONNECTOR (CONSUMER 1394 APPLICATIONS) Figure 4. PCB footprint for SMI connector housing containing Firecomms FDL300E integrated transmitter and FDL300D high sensitivity integrated receiver with pre-formed leads. Firecomms FOTs with straight leads also are available. FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 11 POWER MANAGEMENT FUNCTIONS There are four port states available when Firecomms FDL FOTs are configured for IEEE 1394 operation. These states are described in the Port States table. Each FOT can be in one of three states: On, Sleep, or Off. Based on these states, the port states can be implemented as follows: * Full Power: Both Tx and Rx are fully powered up * Low Power: Tx and Rx are in a sleep state * Ultra-Low Power: Tx is fully powered down (Vcc = 0 V) and Rx is in a sleep state * Off: Both Tx and Rx are fully powered down (Vcc = 0 V) PORT STATES Port State Tx Tx Current Consumption (Maximum) 55 mA 20 uA 0A 0A Rx Rx Current Consumption (Maximum) 45 mA 20 uA 20 uA 0A Tx+Rx Total Maximum Current 100 mA 40 uA 20 uA 0A Full Power Low Power Ultra-Low Power Off On Sleep Off Off On Sleep Sleep Off The FDL300E/D FOT pair supports the IEEE 1394b PMD wake up on LAN specification (ref: TS2004024). Low power mode is triggered by the differential voltage signal swing at the input to the Tx dropping below 50 mV. In this case, the Tx switches to a sleep power state consuming a maximum of 20 uA. Ultra-low power mode is triggered by a harddisable of the Tx, which is when the power to the Tx is switched off (Vcc = 0 V). In both low power and ultra-low power cases, the Rx responds to the Tx powering down. With the Tx powered off, the Rx signal detect (SD) drops low and remains low for more than 50 ms at which point the Rx also switches into sleep mode (consuming a maximum of 20 uA). The last power mode is referred to as power off. This occurs when the DC power (Vcc) to both the Tx and Rx is hard-disabled (switched off). The wake up is described by the circuit diagrams shown in Figures 5 through 7. FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 12 Figure 5. In low power or ultra-low power state, the receiver uses a maximum of 20 uA to monitor optical activity. The PIN diode and a voltage reference monitor for the presence of optical data. Figure 6. On receiving optical power, the Rx will power up all sections of the IC, except the output data section, and will check to see if the optical signal is a valid data signal. Figure 7. Once valid data has been received for 5 us, the complete IC powers up and data is available from the Data+ and Data- output pins. FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 13 Figure 8. Timing diagrams for PMD wake-up on LAN. FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 14 EVALUATION BOARDS Firecomms offers a Transceiver Developer Kit that consists of two evaluation boards for the Firecomms IEEE 1394 FOT. Each evaluation board includes one 10m cable (Eska Mega 0.3NA) completely assembled with connector plugs, and is fitted with a choice of a SMI connector or an IDB connector that contains the FDL300E/FDL300D pair. SMA-type connectors are used to interface Data I/O, SD, and Rex. PACKING INFORMATION Components are packed in PVC anti-static tubes in moisture barrier bags. Bags should be opened only in staticcontrolled locations, and standard procedures should be followed for handling moisture sensitive components. PACKING INFORMATION Components per Tube Tube Length Tube Height Tube Depth Tubes per Bag Bags per Inner Carton Inner Carton Length Inner Carton Height Inner Carton Depth Weight per Inner Carton, Complete Components per Inner Carton Inner Cartons per Outer Carton Outer Carton Length Outer Carton Height Outer Carton Depth Weight per Outer Carton, Complete Components per Outer Carton 50 316 mm 5 mm 20 mm 20 1 450 mm 100 mm 120 mm 0.7 Kg 1000 4 465 mm 260 mm 220 mm 3.2 Kg 4000 FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. FDL300E/FDL300D Page 15 Figure 9. FDL300 Rx components inside tube. Figure 10. FDL300 Tx components inside tube. ORDERING INFORMATION Part Number FDL300E-120 FDL300D-120 FDL300K-120 Name Tx FOT Rx FOT Kit Description Transmitter, pre-formed leads (see Figure 3) Receiver, pre-formed leads (see Figure 3) Includes Tx FOT (FDL300E-120) and Rx FOT (FDL300D-120) Firecomms Ltd. 2200 Airport Business Park Cork, Ireland Ph +353 (21) 4547100 Fax +353 (21) 4322657 www.firecomms.com Copyright (c) 2007 Firecomms Ltd. FDL300E/FDL300D (Preliminary) Revision P13 Firecomms assumes no responsibility for inaccuracies or omissions in the information contained in this document. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. |
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