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TMS3705-TMS3705A1DRG4-TMS3705BDRG4 Fast Delivery,Good Price
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TMS3705TIN/a9avaiLF Reader IC 16-SOIC -40 to 85
TMS3705A1DRG4TIN/a5035avaiLF Reader IC 16-SOIC -40 to 85
TMS3705BDRG4TIN/a2429avaiLF Reader IC 16-SOIC -40 to 85
TMS3705BDRG4SOP16N/a2000avaiLF Reader IC 16-SOIC -40 to 85


TMS3705A1DRG4 ,LF Reader IC 16-SOIC -40 to 85block diagram.VDDSCIDigital DemodulatorEncoderLimiter DiagnosisTransponderA_TSTResonance-FrequencyS ..
TMS3705BDRG4 ,LF Reader IC 16-SOIC -40 to 85Electrical Characteristics.. 7 8.3 Tools and Software...... 195.5 Thermal Resistance Characteristic ..
TMS3705BDRG4 ,LF Reader IC 16-SOIC -40 to 85Block Diagram. 2 6.9 Frequency Divider........ 122 Revision History..... 3 6.10 Digital Demodulator ..
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TPS61130PW ,Adjustable, 90% Efficient SEPIC Converter with 200-mA LDO for 1-Cell LiIon or Dual-Cell ApplicationsFeatures 3 DescriptionThe TPS6113x devices provide a complete power1• Synchronous, Up to 90% Effici ..
TPS61140DRCR ,Dual, 2x 27V, 700mA Switch, 1.2MHz Boost Converter with Single Inductor White LED and OLED Driver 10-VSON -40 to 85SLVS624B–JANUARY 2006–REVISED MARCH 2007These devices have limited built-in ESD protection. The lea ..
TPS61140DRCRG4 ,Dual, 2x 27V, 700mA Switch, 1.2MHz Boost Converter with Single Inductor White LED and OLED Driver 10-VSON -40 to 85FEATURES DESCRIPTION• 2.5-V to 6-V Input Voltage RangeThe TPS61140/1 is a dual output boost convert ..
TPS61140DRCT ,Dual, 2x 27V, 700mA Switch, 1.2MHz Boost Converter with Single Inductor White LED and OLED Driver 10-VSON -40 to 85.DEVICE INFORMATION10 pin 3*3 mm QFN PACKAGE(TOP VIEW)1 10Vout IFB2 9VFB IsetExposedThermalSELV 3 ..
TPS61141DRCR ,Dual, 2x 27V, 700mA Switch, 1.2MHz Boost Converter with Single Inductor White LED and OLED Driver 10-VSON -40 to 85.DEVICE INFORMATION10 pin 3*3 mm QFN PACKAGE(TOP VIEW)1 10Vout IFB2 9VFB IsetExposedThermalSELV 3 ..
TPS61141DRCRG4 ,Dual, 2x 27V, 700mA Switch, 1.2MHz Boost Converter with Single Inductor White LED and OLED Driver 10-VSON -40 to 85FEATURES DESCRIPTION• 2.5-V to 6-V Input Voltage RangeThe TPS61140/1 is a dual output boost convert ..


TMS3705-TMS3705A1DRG4-TMS3705BDRG4
LF Reader IC 16-SOIC -40 to 85
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TMS3705

SCBS881D –JANUARY 2010–REVISED OCTOBER 2016
TMS3705 Transponder Base Station IC Device Overview
1.1 Features
Base StationIC for TI-RFid™ RF Identification
Systems Drives Antenna Sends Modulated Datato Antenna Detects and Demodulates Transponder Response
(FSK) Short-Circuit Protection Diagnosis Sleep-Mode Supply Current: 0.2 mA Designedfor Automotive Requirements 16-Pin SOIC (D) Package
1.2 Applications
Car Access Immobilization Building Access Livestock Reader
1.3 Description

The TMS3705 transponder base stationICis usedto drive the antennaofa TI-RFid transponder system, send data modulated on the antenna signal, andto detect and demodulate the responseof the
transponder. The responseof the transponderisa frequency shift keyed (FSK) signal. The highor low bits
are codedin two different high-frequency signals (134.2 kHz for low bits and 123 kHz for high bits,
nominal). The transponder induces these signalsin the antenna coil according an internally stored code.
The energy that the transponder needsto send out the datais storedina charge capacitorin the
transponder. The antenna field charges this capacitorina preceding charge phase. The IC has an
interfacetoan external microcontroller.
There are two configurations for the clock supplyto both the microcontroller and the base station IC: The microcontroller and base stationIC are supplied witha clock signal derived from only one
resonator: The resonatoris attachedto the microcontroller. The base stationICis supplied witha clock
signal drivenby the digital clock outputof the microcontroller. The clock frequencyis either4 MHzor MHz, dependingon the selected microcontroller type. The microcontroller and the base station each have their own resonator.
The base stationIC has an on-chip PLL that generatesa clock frequencyof 16 MHz for internal clock
supply only. Only TMS3705BDRG4 and TMS3705DDRQ1 are recommendedin combination with AES
transponder products (for example, TRPWS21GTEAor RF430F5xxx). TMS3705A1DRG4 cannot be used combination with AES transponder products.(1)
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