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| TFDU5102 Vishay Telefunken Fast Infrared Transceiver Module Family (MIR, 1 Mbit/s) for 2.6 V to 5.5 V Operation Description The TFDU5102 is a low-power infrared transceiver module compliant to the IrDA 1.3 standard for fast infrared data communication, supporting IrDA speeds up to 1 Mbit/s (MIR), HP-SIR, Sharp ASK and carrier based remote control modes up to 2 MHz. Integrated within the transceiver module is a photo PIN diode, infrared emitter (IRED), and a low-power CMOS control IC to provide a total front-end solution in a single package. The transceiver is capable of directly interfacing with a wide variety of I/O devices which perform the modulation/ demodulation function, including National Semiconductor's PC87338, PC87108 and PC87109, SMC's FDC37C669, FDC37N769 and CAM35C44, and Hitachi's SH3. At a minimum, a current-limiting resistor in series with the infrared emitter and a VCC bypass capacitor are the only external components required to implement a complete solution. Features D Compliant to IrDA 1.3 (Up to 1 Mbit/s), D For 3.0 V and 5 V Applications D Operates from 2.6 V to 5.5 V within specification,operational down to 2.4 V HP-SIR, Sharp ASK and TV Remote D Baby Face (Universal) Package Capable of Surface Mount Solderability to Side and Top View Orientation D Directly Interfaces with Various Super I/O and Controller Devices D Low Power Consumption (3 mA Supply Current) D Power Shutdown Mode (1 mA Shutdown Current) D Package: Universal (9.7 x 4.7 x 4.0 mm) Shutdown Mode D Built-In EMI Protection - No External Shielding Necessary D Few External Components Required D Backward Pin to Pin Compatible to all Vishay Telefunken SIR and FIR Infrared Transceivers D Tri-State-Receiver Output, Floating when in D High Efficiency Emitter D Split Power Supply, Transmitter and Receiver can be operated from two Power Supplies with relaxed Requirements, saving costs Applications D Notebook Computers, Desktop PCs, Palmtop Computers (Win CE, Palm PC), PDAs D Telecommunication Products (Cellular Phones, Pagers) D Digital Still and Video Cameras D Printers, Fax Machines, Photocopiers, Screen Projectors D Internet TV Boxes, Video Conferencing Systems D External Infrared Adapters (Dongles) D Medical and Industrial Data Collection Package TFDU5102 Baby Face (Universal) Document Number 82535 Rev. ??? www.vishay.de * FaxBack +1-408-970-5600 1 (11) TFDU5102 Vishay Telefunken Ordering Information Part Number TFDU5102-TR3 TFDU5102-TT3 Qty / Reel 1000 pcs 1000 pcs Description Oriented in carrier tape for side view surface mounting Oriented in carrier tape for top view surface mounting Functional Block Diagram VCC Driver Amplifier Comparator Rxd IRED Anode SD/Mode Txd Open Drain Driver AGC Logic IRED Cathode GND Figure 1. Functional Block Diagram Pin Description Pin Number 1 Description IRED anode, to be externally connected to VCC through a current control resistor. This pin is allowed to be supplied from an uncontrolled power supply separated from the controlled VCC supply IRED Cathode IRED cathode, internally connected to driver transistor Txd Transmit Data Input Rxd Pin is floating when device is in shutdown mode SD/Mode Shutdown/ Mode VCC Supply Voltage Mode HIGH: High speed mode; LOW: Low speed mode, SIR only (see chapter "Mode Switching") GND Ground Baby Face (Universal) IRED Detector Function IRED Anode I/O Active 2 3 4 5 6 7 I O I I HIGH LOW HIGH 8 Figure 2. Pinnings www.vishay.de * FaxBack +1-408-970-5600 2 (11) Document Number 82535 Rev. ??? TFDU5102 Vishay Telefunken Absolute Maximum Ratings Reference point Pin GND unless otherwise noted. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Parameters Supply Voltage Range, Transceiver Supply Voltage Range, Transmitter Input Currents Output Sinking Current Power Dissipation Junction Temperature Ambient Temperature Range (Operating) Storage Temperature Range Soldering Temperature Average Output Current Repetitive Pulsed Output Current IRED Anode Voltage Transmitter Data Input Voltage Receiver Data Output Voltage Virtual Source Size Test Conditions 0 V Method: (1-1/e) encircled energy Maximum Intensity for EN60825, 1997, Class 1 Operation of unidirectional operation, IEC825-1 or EN60825-1 worst case test mode (worst case IrDA FIR pulse pattern) Document Number 82535 Rev. ??? www.vishay.de * FaxBack +1-408-970-5600 3 (11) TFDU5102 Vishay Telefunken Electrical Characteristics. Tamb = 25_C, VCC = 3.0 V to 5.25 Vunless otherwise noted. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Parameters Transceiver Supply Voltage Dynamic Supply Current Test Conditions / Pins Symbol VCC Min. 2.6 Typ. Max. 5.5 Unit V Standby Supply Current Operating Temperature Range Output Voltage Low Output Voltage High Input Voltage Low (Txd, SD/ Mode, Mode) Input Voltage High (Txd, SD/ Mode, Mode) Input Leakage Current (Txd, SD/ Mode) Input Leakage Current, Mode Input Capacitance *) **) Receive mode only. In transmit mode, add additional 85 mA (typ) for IRED current SD = Low, Ee = 0 klx ICC 3 4 SD = Low, Ee = 1 klx *) ICC 3 4 SD = High, ISD Mode = Floating, T = 25C, Ee = 0 klx 1 T = 25C, Ee = 1 klx *) 1.5 SD = High, T = 85C, ISD 5 Mode = Floating, Not Ambient Light Sensitive TA -25 +85 Rload = 2.2 kW, Cload = 15 pF Rload = 2.2 kW, Cload = 15 pF VOL VOH VIL CMOS level **) TTL level, VCC 4.5 V VIH VIH IL IL CI VCC-0.5 0 0.9 x VCC 2.4 -10 -80 0.8 0.5 0.8 mA mA A A A C V V V V V A A pF +10 +80 5 Standard Illuminant A The typical threshold level is between 0.5 x VCC/2 (VCC = 3 V) and 0.4 x VCC (VCC = 5.5 V) . It is recommended to use the specified min/ max values to avoid increased operating current. www.vishay.de * FaxBack +1-408-970-5600 4 (11) Document Number 82535 Rev. ??? TFDU5102 Vishay Telefunken Optoelectronic Characteristics Tamb = 25_C, VCC = 3.0 V to 5.25 V unless otherwise noted. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing. Parameters Receiver Minimum Detection Threshold Irradiance, SIR Mode Minimum Detection Threshold Irradiance, MIR Mode Maximum Detection Threshold Irradiance Logic LOW Receiver Input Irradiance Rise Time of Output Signal Fall Time of Output Signal Rxd Pulse Width of Output Signal, 50% SIR Mode Rxd Pulse Width of Output Signal, 50% MIR Mode Jitter, Leading Edge, MIR Mode Latency Transmitter IRED Operating Current Output Radiant Intensity (see Figure 3) Output Radiant Intensity Test Conditions TFDU5102 9.6 kbit/s to 115.2 kbit/s l = 850 nm to 900 nm TFDU5102 1.152 Mbit/s l = 850 nm to 900 nm l = 850 nm to 900 nm Symbol Ee Min. Typ. 25 Max. 40 Unit mW/m2 Ee 65 95 mW/m2 Ee Ee 5 4 10 10 1.2 1.2 110 10 kW/m2 mW/m2 40 40 ns ns s s ns 10% to 90%, @2.2 k, 15 pF 90% to 10%, @2.2 k, 15 pF Input pulse length 20 s, 9.6 kbit/s Input pulse length 1.41 ms, 115.2 kbit/s Input pulse length 217 ns, 1.152 Mbit/s Input Irradiance = 100 mW/m2, 1.152 Mbit/s tr (Rxd) tf (Rxd) tPW tPW tPW 10 20 1/2 bit length 260 10 tL 120 0.4 120 170 0.55 350 ns s A mW/sr R1*) = 7.2 , VCC = 5.0 V VCC = 5.0 V, = 0_, 15_ Txd = High, SD = Low, R1 = 7.2 VCC = 5.0 V, = 0_, 15_ Txd = Low, SD = High, (Receiver is inactive as long as SD = High) R1 = 7.2 ID Ie Ie 0.04 mW/sr Output Radiant Intensity, Angle of Half Intensity Peak - Emission Wavelength Optical Rise Time, Fall Time Optical Overshoot *) R1: control series resistor for current limitation a lP tropt, tfopt 880 10 24 C 900 40 10 nm ns % Document Number 82535 Rev. ??? www.vishay.de * FaxBack +1-408-970-5600 5 (11) TFDU5102 Vishay Telefunken Recommended Circuit Diagram The only required component for designing an IrDA 1.3 compatible design using Vishay Telefunken transceivers is a current limiting resistor, R1, to the IRED. However, depending on the entire system design and board layout, additional components may be required (see figure 3). VCC2 VCC1 R2 Rxd Txd GND SD/Mode Note: Outlined components are optional depending on the quality of the power supply. C1 C2 TFDU5102 IRED Cathode Rxd VCC GND IRED Anode Txd SD/Mode Mode R1 400 Intensity (mW/sr) 300 200 100 0 0 14379 The placement of these parts is critical. It is strongly recommended to position C2 as near as possible to the transceiver power supply pins. An electrolytic capacitor should be used for C1 while a ceramic capacitor is used for C2. 500 5.25V 5.0V max. intensity in emission cone "15 min. Rdson, min. VF 5.0V max.Rdson, max.VF Vcc=4.75V min. intensity in emission cone 2 4 6 8 10 12 "15 14 16 Current Control Resistor ( W ) Figure 3. Recommended Application Circuit Vishay Telefunken transceivers integrate a sensitive receiver and a built-in power driver. The combination of both needs a careful circuit board layout. The use of thin, long resistive and inductive wiring should be avoided. The inputs (Txd, SD/Mode) and the output Rxd should be directly (DC) coupled to the I/O circuit. R1 is used for controlling the current through the IR emitter. For increasing the output power of the IRED, the value of the resistor should be reduced. Similarly, to reduce the output power of the IRED, the value of the resistor should be increased. For typical values of R1 see figure 4. For IrDA compliant operation, a current control resistor of 7.2 is recommended. For compensating losses of the cosmetic window, reducing that value to 5.6 is acceptable. The upper drive current limitation is dependent on the duty cycle and is given by the absolute maximum ratings on the data sheet. R2, C1 and C2 are optional and dependent on the quality of the supply voltage VCC and injected noise. An unstable power supply with dropping voltage during transmission may reduce sensitivity (and transmission range) of the transceiver. Figure 4. Intensity Ie vs. Current Control Resistor R1 5 V Applications 700 3.6V 600 Intensity (mW/sr) 500 400 300 200 100 Vcc=3.0V 0 0 15111 max. intensity in emission cone "15 "15 min. Rdson, min. VF min. intensity in emission cone 3.3V max. Rdson, max. VF 3.3V 2 Current Control Resistor ( W ) 4 6 8 10 12 Figure 5. Intensity Ie vs. Current Control Resistor R1, 3 V Applications In addition, when connecting the described circuit to the power supply, low impedance wiring should be used. www.vishay.de * FaxBack +1-408-970-5600 6 (11) Document Number 82535 Rev. ??? TFDU5102 Vishay Telefunken Table 1. Recommended Application Circuit Components Component Recommended Value C1 4.7 mF, 16 V C2 0.1 F, Ceramic R1 5 V supply voltage: 7.2 Vishay Part Number 293D 475X9 016B 2T VJ 1206 Y 104 J XXMT (-5.6 , see text) 0.25 W (recommend using two 3.6 W, 0.125 W resistors in series) 3.3 V supply voltage: 3.6 , 0.25 W (recommend using two 1.8 W, 0.125 W resistors in series) CRCW-1206-3R60-F-RT1 R2 47 , 0.125 W CRCW-1206-1R80-F-RT1 CRCW-1206-47R0-F-RT1 I/O and Software In the description, already different I/Os are mentioned. Differnt combinations are tested and the function verified with the special drivers available from the I/O suppliers. In special cases refer to the I/O manual, the Vishay application notes, or contact directly Vishay Sales, Marketing or Application. SD/Mode 50% ts Txd 50% th High : MIR 50% Low : SIR Control: Differences to TFDx6000 Series For applications using I/Os from NSC, Winbond and TI no software upgrade is necessary. In combination with the latest SMSC controllers for Microsoft Windows 98 a software upgrade is necessary, drivers are available from SMSC and Vishay Semiconductor GmbH. This software is intended to work with Windows 95, too. Alternatively the HP/ Sharp settings can be selected. The Microsoft Operating Systems NT 5.0 Beta 2 and Windows 2000 provide Miniport device drivers. Figure 6. Mode Switching Timing Diagram Setting to the High Bandwidth Mode (0.576 Mbit/s to 1 Mbit/s) 1. Set SD/MODE input to logic "HIGH". 2. Set Txd input to logic "HIGH". Wait ts 200 ns. 3. Set SD/MODE to logic "LOW" (this negative edge latches state of Txd, which determines speed setting). 4. After waiting th 200 ns Txd can be set to logic "LOW". The hold time of Txd is limited by the maximum allowed pulse length. Txd is now enabled as normal Txd input for the high bandwidth mode. Mode Switching The TFDU5102 do not power on with a default mode, therefore the data transfer rate has to be set by a programming sequence using the Txd and SD/ Mode inputs as described below or selected by setting the Mode Pin. The Mode Pin can be used to statically set the mode (Mode Pin: LOW: SIR, HIGH: 0.576 Mbit/s to 1 Mbit/s). When using the Mode Pin, the standby current may increase to about 50 to 60 mA when high or low. If not used or in standby mode, the mode input should float to minimize standby current. The low frequency mode covers speeds up to 115.2 kbit/s. Signals with higher data rates should be detected in the high frequency mode. Lower frequency data can also be received in the high frequency mode but with reduced sensitivity. To switch the transceivers from low frequency mode to the high frequency mode and vice versa, the programming sequences described below are required. Setting to the Lower Bandwidth Mode (2.4 kbit/s to 115.2 kbit/s) 1. Set SD/MODE input to logic "HIGH". 2. Set Txd input to logic "LOW". Wait ts 200 ns. 3. Set SD/MODE to logic "LOW" (this negative edge latches state of Txd, which determines speed setting). 4. Txd must be held for th 200 ns. Txd is now enabled as normal Txd input for the lower bandwidth mode. Document Number 82535 Rev. ??? www.vishay.de * FaxBack +1-408-970-5600 7 (11) TFDU5102 Vishay Telefunken Recommended SMD Pad Layout The leads of the device should be soldered in the center position of the pads. 7x1=7 0.6 2.5 1 1 15067 8 Figure 7. TFDU5102 Baby Face (Universal) Note: Leads of the device should be at least 0.3 mm within the ends of the pads. Recommended Solder Profile 240 210 Temperature ( C ) 2 - 4C/s 10 s max. @ 230C Current Derating Diagram 600 Peak Operating Current ( mA ) 500 400 300 200 100 0 -40 -20 0 14875 Current derating as a function of the maximum forward current of IRED. Maximum duty cycle: 25%. 180 150 120 120 - 180 s 90 s max. 90 60 30 0 0 50 100 2 - 4C/s 14874 150 200 250 Time ( s ) 300 350 20 40 60 80 100 120 140 Temperature ( C ) Figure 8. Recommended Solder Profile Figure 9. Current Derating Diagram www.vishay.de * FaxBack +1-408-970-5600 8 (11) Document Number 82535 Rev. ??? TFDU5102 Vishay Telefunken TFDU5102 - Baby Face (Universal) Package (Mechanical Dimensions) 12249 Issue: 8; 10.7.98 Document Number 82535 Rev. ??? www.vishay.de * FaxBack +1-408-970-5600 9 (11) TFDU5102 V ishay T e l e f u n k e n R e v isio n Histo ry: B1.????: ???? www.vishay.de * FaxBack +1-408-970-5600 10 (11) Document Number 82535 Rev. ??? TFDU510 O z o n e D e pl e tin g Su bstan ce s Po l icy State me n t It is the policy of V ishay Se mico n du cto r to GmbH 1. Meet all present and future national and international statutory requirements. 2. Regularly and continuously improve the performance of our products, processes, distribution and operating systems with respect to their impact on the health and safety of our employees and the public, as well as their impact on the environment. It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as ozone depleting substances ( ODSs ). The Montreal Protocol ( 1987 ) and its London Amendments ( 1990 ) intend to severely restrict the use of ODSs and forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban on these substances. V ishay Se mico n du cto r has been able to use its policy of continuous improvements to eliminate the use of GmbH ODSs listed in the following documents. 1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively 2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental Protection Agency ( EPA ) in the USA 3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively. V ishay Se mico n du cto r GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. V ishay T e l e f u n k e W e re se rv e the right to mak e chan ge s to impro v e te chn ical de sign an d may do so witho u t Parameters can vary in different applications. All operating parameters must be validated for each customer application by the customer. Should the buyer use Vishay Telefunken products for any unintended or unauthorized application, the buyer shall indemnify Vishay Telefunken against all claims, costs, damages, and expenses, arising out of, directly or indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use. Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423 Document Number 82535 Rev. ??? www.vishay.de * FaxBack +1-408-970-5600 11 (11) |
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