TFDU5102 Vishay Semiconductors 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 physical layer 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 Compliant to the latest IrDA physical layer standard (Up to 1 Mbit/s), HP–SIR, Sharp ASK and TV Remote Baby Face (Universal) Package Capable of Surface Mount Solderability to Side and Top View Orientation For 3.0 V and 5 V Applications Directly Interfaces with Various Super I/O and Controller Devices Operates from 2.6 V to 5.5 V within specification,operational down to 2.4 V Low Power Consumption (3 mA Supply Current) Built–In EMI Protection – No External Shielding Necessary Power Shutdown Mode (1 A Shutdown Current) Few External Components Required Package: Universal (9.7 × 4.7 × 4.0 mm) Backward Pin to Pin Compatible to all Vishay Telefunken SIR and FIR Infrared Transceivers Tri-State-Receiver Output, Floating when in Shutdown Mode High Efficiency Emitter Split Power Supply, Transmitter and Receiver can be operated from two Power Supplies with relaxed Requirements, saving costs Applications Notebook Computers, Desktop PCs, Palmtop Computers (Win CE, Palm PC), PDAs Telecommunication Products (Cellular Phones, Pagers) Digital Still and Video Cameras Internet TV Boxes, Video Conferencing Systems Printers, Fax Machines, Photocopiers, Screen Projectors External Infrared Adapters (Dongles) Medical and Industrial Data Collection Package TFDU5102 Baby Face (Universal) Document Number 82535 Rev. A1.1, 12-Nov-02 www.vishay.com 1 (11) TFDU5102 Vishay Semiconductors 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 AGC Logic SD/Mode Txd IRED Cathode Open Drain Driver GND Figure 1. Functional Block Diagram Pin Description Pin Number 1 Function IRED Anode 2 3 4 5 6 7 IRED Cathode Txd Rxd SD/Mode VCC Mode 8 GND 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, internally connected to driver transistor Transmit Data Input Pin is floating when device is in shutdown mode Shutdown/ Mode Supply Voltage HIGH: High speed mode; LOW: Low speed mode, SIR only (see chapter “Mode Switching”) Ground I/O Active I O I HIGH LOW HIGH I Baby Face (Universal) IRED Detector Figure 2. Pinnings www.vishay.com 2 (11) Document Number 82535 Rev. A1.1, 12-Nov-02 TFDU5102 Vishay Semiconductors 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 Test Conditions Symbol Min. Typ. Max. Unit Supply Voltage Range, Transceiver 0 V <VCC2 <6 V VCC1 – 0.5 6 V Supply Voltage Range, Transmitter 0 V <VCC1 <6 V VCC2 – 0.5 6 V Input Currents For all Pins, Except IRED Anode Pin 10 mA 25 mA Output Sinking Current Power Dissipation PD 350 mW Junction Temperature TJ 125 °C Ambient Temperature Range (Operating) Tamb –25 +85 °C Storage Temperature Range Tstg –25 +85 °C 240 °C Soldering Temperature See Derating Curve See Recommended Solder Profile (see Figure 9) Average Output Current IIRED (DC) 130 mA Repetitive Pulsed Output <90 µs, ton <20% Current IIRED (RP) 600 mA IRED Anode Voltage VIREDA – 0.5 6 V Transmitter Data Input Voltage VTxd – 0.5 VCC1 +0.5 V Receiver Data Output Voltage VRxd – 0.5 VCC1 +0.5 V 2.5 Virtual Source Size Method: (1–1/e) encircled energy d Maximum Intensity for Class 1 IEC60825–1 or EN60825–1, edition Jan.2001 Ie *) **) 2.8 mm *) mW/sr (500) **) Due to the internal limitation measures the device is a “class 1” device IrDA specifies the max. intensity with 500 mW/sr Document Number 82535 Rev. A1.1, 12-Nov-02 www.vishay.com 3 (11) TFDU5102 Vishay Semiconductors Electrical Characteristics. Tamb = 25C, 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 Test Conditions / Pins Symbol Min. VCC 2.6 Typ. Max. Unit 5.5 V Transceiver Supply Voltage Dynamic Supply Current Standby Supply Current Receive mode only. In transmit mode, add additional 85 mA (typ) for IRED current SD = Low, Ee = 0 klx ICC 3 4.5 mA SD = Low, Ee = 1 klx *) ICC 3 4.5 mA SD = High, Mode = Floating, T = 25°C, Ee = 0 klx T = 25°C, Ee = 1 klx *) ISD 1 1.5 µA µA SD = High, T = 85°C, Mode = Floating, Not Ambient Light Sensitive ISD 5 µA +85 °C 0.8 V Operating Temperature Range TA –25 Output Voltage Low Rload = 2.2 k, Cload = 15 pF VOL Output Voltage High Rload = 2.2 k, Cload = 15 pF VOH VCC–0.5 VIL 0 CMOS level **) VIH 0.9 x VCC V TTL level, VCC ≥ 4.5 V VIH 2.4 V Input Leakage Current (Txd, SD/ Mode) IL –10 +10 µA Input Leakage Current, Mode IL –80 +80 µA Input Capacitance CI 5 pF Input Voltage Low (Txd, SD/ Mode, Mode) Input Voltage g High g (Txd, SD/ Mode, Mode) *) **) 0.5 V 0.8 V 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.com 4 (11) Document Number 82535 Rev. A1.1, 12-Nov-02 TFDU5102 Vishay Semiconductors Optoelectronic Characteristics Tamb = 25C, 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 Stochastic Jitter, Leading Edge, MIR Mode Latency Transmitter IRED Operating Current Output Radiant Intensity (see Figure 3) Output Radiant Intensity Output Radiant Intensity, Angle of Half Intensity Peak – Emission Wavelength Optical Output Pulse Duration Test Conditions TFDU5102 9.6 kbit/s to 115.2 kbit/s = 850 nm to 900 nm TFDU5102 1.152 Mbit/s = 850 nm to 900 nm = 850 nm to 900 nm Min. Typ. Max. Unit Ee 25 40 mW/m 2 Ee 65 95 mW/m 2 kW/m 2 Ee 5 Ee 4 10% to 90%, @2.2 kΩ, 15 pF tr (Rxd) 10 40 ns 90% to 10%, @2.2 kΩ, 15 pF tf (Rxd) 10 40 ns tPW tPW 1.2 1.2 µs µs tPW 110 20 1/2 bit length 260 ±10 ±25 ns tL 120 300 µs ID Ie 0.4 170 0.55 350 A mW/sr 0.04 mW/sr Input pulse length 20 µs, 9.6 kbit/s Input pulse length 1.41 s, 115.2 kbit/s Input pulse length 217 ns, 1.152 Mbit/s Input Irradiance = 100 mW/m2, 1.152 Mbit/s R1*) = 7.2 Ω, VCC = 5.0 V VCC = 5.0 V, α = 0, 15 Txd = High, SD = Low, R1 = 7.2 Ω VCC = 5.0 V, α = 0, 15 Txd = Low, SD = High, (Receiver is inactive as long as SD = High) R1 = 7.2 Ω 120 Input pulse width 217 ns, 1.152 Mbit/s Input pulse width t < 80 µs Input pulse width t ≥ 80 µs 10 mW/m 2 10 Ie ±24 Optical Rise Time, Fall Time Optical Overshoot *) Symbol P 880 topt 207 topt tropt, tfopt 217 °C 900 nm 227 ns 80 40 µs µs ns 10 % t 10 ns R1: control series resistor for current limitation Document Number 82535 Rev. A1.1, 12-Nov-02 www.vishay.com 5 (11) TFDU5102 Vishay Semiconductors 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). 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. VCC2 500 R1 Rxd IRED Anode Txd Rxd TFDU5102 C1 C2 Vcc GND GND SD/Mode Mode 5.0V 400 Intensity (mW/sr) IRED Cathode R2 SD/Mode min. Rdson, min. VF 300 200 5.0V 100 Vcc=4.75V max.Rdson, max.VF min. intensity in emission cone 15° 0 Txd 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 Ω is recommended. For compensating losses of the cosmetic window, reducing that value to 5.6 Ω 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. 0 2 4 6 8 10 12 14 16 Current Control Resistor ( ) 14379 Figure 4. Intensity Ie vs. Current Control Resistor R1 5 V Applications 700 max. intensity in emission cone 15° 3.6V 600 Intensity (mW/sr) Note: outlined components are optional depending on the quality of the power supply www.vishay.com 6 (11) max. intensity in emission cone 15° 5.25V VCC1 min. Rdson, min. VF 500 min. intensity in emission cone 15° 400 3.3V 300 max. Rdson, max. VF 200 3.3V 100 Vcc=3.0V 0 0 15111 2 4 6 8 10 Current Control Resistor ( ) 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. Document Number 82535 Rev. A1.1, 12-Nov-02 TFDU5102 Vishay Semiconductors Table 1. Recommended Application Circuit Components Component Recommended Value Vishay Part Number C1 C2 4.7 F, 16 V 0.1 µF, Ceramic 293D 475X9 016B 2T VJ 1206 Y 104 J XXMT R1 5 V supply voltage: 7.2 Ω (–5.6 Ω, see text) 0.25 W (recommend using two 3.6 , 0.125 W resistors in series) 3.3 V supply voltage: 3.6 Ω, 0.25 W (recommend using two 1.8 , 0.125 W resistors in series) CRCW–1206–3R60–F–RT1 R2 CRCW–1206–1R80–F–RT1 CRCW–1206–47R0–F–RT1 47 Ω , 0.125 W 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. 50% SD/Mode ts th High : MIR Txd 50% 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. 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 A 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. Document Number 82535 Rev. A1.1, 12-Nov-02 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. 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. www.vishay.com 7 (11) TFDU5102 Vishay Semiconductors Recommended SMD Pad Layout The leads of the device should be soldered in the center position of the pads. 7x1=7 0.6 (≤ 0.7) 2.5 (≥ 2.0) 1 8 1 16524 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 10 s max. @ 230°C 210 2 - 4°C/s 180 150 120 120 - 180 s 90 60 90 s max. 2 - 4°C/s 30 Peak Operating Current ( mA ) 600 240 Temperature ( °C ) Current Derating Diagram 0 0 14874 50 100 150 200 250 Time ( s ) 300 www.vishay.com 8 (11) 400 300 200 Current derating as a function of the maximum forward current of IRED. Maximum duty cycle: 25%. 100 0 –40 –20 0 350 Figure 8. Recommended Solder Profile 500 14875 20 40 60 80 100 120 140 Temperature ( °C ) Figure 9. Current Derating Diagram Document Number 82535 Rev. A1.1, 12-Nov-02 TFDU5102 Vishay Semiconductors TFDU5102 – Baby Face (Universal) Package (Mechanical Dimensions) 12249 Document Number 82535 Rev. A1.1, 12-Nov-02 www.vishay.com 9 (11) TFDU5102 Vishay Semiconductors Revision History: A1.0, 13/10/2000: Txd timing added A1.1,12/11/2002: www.vishay.com 10 (11) Eye safety standard statement adapted to latest standard Document Number 82535 Rev. A1.1, 12-Nov-02 TFDU5102 Vishay Semiconductors Ozone Depleting Substances Policy Statement It is the policy of Vishay Semiconductor GmbH to 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. Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of 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. Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting substances and do not contain such substances. We reserve the right to make changes to improve technical design and may do so without further notice. 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. A1.1, 12-Nov-02 www.vishay.com 11 (11) Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1