RI-TMS3705ADR www.ti.com SCBS863 – NOVEMBER 2003 LF BASE STATION IC FEATURES • • • • • Low Current Consumption in Sleep Mode Automatic Transponder Frequency Measurement and Adaptation Diagnosis Function Full Bridge Antenna Driver Built in Band-Pass Filter and Limiter • • • • • • Digital FSK Demodulator High Speed Data Transmission in Synchronous Mode Power on Reset PLL Short Circuit Protection Support of All TI-RFid™ LF Transponder Functions DESCRIPTION The LF base station IC TMS3705ADR allows efficient development and production of RFID readers for low power hand scanners, stationary readers and vehicle immobilizers. This base station IC drives the antenna of a TI-RFid™ transponder system to send data modulated on the antenna signal, and to detect and demodulate the response from the transponder. It allows also minimizing the external component count. ORDERING INFORMATION PACKAGE (1) Package/Pin count SO 16 (10 mm × 6 mm) Packing/Delivery Tape on Reel, 2500 units per reel (1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. TI-RFid is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2003, Texas Instruments Incorporated RI-TMS3705ADR www.ti.com SCBS863 – NOVEMBER 2003 ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) RI-TMS3705ADR Operating Voltage UNIT 4.5 to 5.5 DC Current Consumption V Charge Phase (without antenna load) typical 8 mA; max. 20 mA Sleep Mode (without I/O currents) typical 15 µA; max. 0.2 mA ESD Protection (MILSTD 883, HBM ) –2000 to +2000 V Operating Temperature –40 to +85 °C Storage Temperature –40 to +100 (125 up to 1000hrs over lifetime) °C (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. OPERATING CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) PARAMETER 2 PART NUMBER RI-TMS3705ADR Operating Frequency Typical 134.2, FSK Interface to Micro Controller Two wire multifunctional serial interface, 15625 baud Antenna Inductivity 400–700 recommended Submit Documentation Feedback UNIT kHz µH IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. 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