TMS3705DDRQ1 Allicdata Electronics
Allicdata Part #:

296-46965-2-ND

Manufacturer Part#:

TMS3705DDRQ1

Price: $ 6.40
Product Category:

RF/IF and RFID

Manufacturer: Texas Instruments
Short Description: IC RFID BASE STATION LF 16SOICRFID Reader IC 134.2...
More Detail: N/A
DataSheet: TMS3705DDRQ1 datasheetTMS3705DDRQ1 Datasheet/PDF
Quantity: 25110
1 +: $ 6.40000
10 +: $ 6.30000
100 +: $ 6.25000
1000 +: $ 6.20000
2500 +: $ 6.10000
Stock 25110Can Ship Immediately
$ 6.4
Specifications
Series: TMS3705
Packaging: Tape & Reel (TR) 
Part Status: Active
Type: RFID Reader
Frequency: 134.2kHz
Standards: --
Interface: --
Voltage - Supply: 5V
Operating Temperature: -40°C ~ 85°C
Package / Case: 16-SOIC (0.154", 3.90mm Width)
Supplier Device Package: 16-SOIC
Description

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1. Description

The TMS3705 transponder base station IC is used to drive the antenna of a TI-RFid transponder system, to send data modulated on the antenna signal, and to detect and demodulate the response of the transponder. The response of the transponder is a frequency shift keyed (FSK) signal. The high or low bits are coded in two different high-frequency signals (134.2 kHz for low bits and 123 kHz for high bits, nominal). The transponder induces these signals in the antenna coil according an internally stored code. The energy that the transponder needs to send out the data is stored in a charge capacitor in the transponder. The antenna field charges this capacitor in a preceding charge phase. The IC has an interface to an external microcontroller.

There are two configurations for the clock supply to both the microcontroller and the base station IC:

1. The microcontroller and base station IC are supplied with a clock signal derived from only one resonator: The resonator is attached to the microcontroller. The base station IC is supplied with a clock signal driven by the digital clock output of the microcontroller. The clock frequency is either 4 MHz or 2 MHz, depending on the selected microcontroller type.

2. The microcontroller and the base station each have their own resonator. The base station IC has an on-chip PLL that generates a clock frequency of 16 MHz for internal clock supply only. Only TMS3705DDRQ1 is recommended in combination with AES transponder products (for example, TRPWS21GTEA or RF430F5xxx). TMS3705DDRQ1 is recommended for best performance in combination with DST40, DST80, MPT transponders (for example, TMS37145TEAx, TMS37126xx, TMS37x128xx, TMS37x136xx, TMS37x158xx, RI-TRP-DR2B-xx, RI-TRP-BRHP-xx) and cannot be used in combination with AES transponder products.

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2. Features

    1. Base Station IC for TI-RFid™ RF Identification Systems

    2. Drives Antenna

    3. Sends Modulated Data to Antenna

    4. Detects and Demodulates Transponder Response (FSK)

    5. Short-Circuit Protection

    6. Diagnosis

    7. Sleep-Mode Supply Current: 0.2 mA

    8. Designed for Automotive Requirements

    9. 16-Pin SOIC (D) Package

3. Pin Diagram

image.png

4. Packaging Information


image.png


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