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TDA5100A Datasheet(PDF) 6 Page - Infineon Technologies AG

Part No. TDA5100A
Description  ASK Transmitter 434 MHz
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Maker  INFINEON [Infineon Technologies AG]
Homepage  http://www.infineon.com
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Product Description
2 - 2
TDA 5100A
preliminary
Wireless Components
Specification, March 2001
2.1 Overview
The TDA 5100A is a single chip ASK transmitter for the frequency band 433-
435 MHz. The IC offers a high level of integration and needs only a few external
components. The device contains a fully integrated PLL synthesizer and a high
efficiency power amplifier to drive a loop antenna. A special circuit design and
an unique power amplifier design are used to save current consumption and
therefore to save battery life. Additional features like a power down mode, a low
power detect and a divided clock output are implemented.
2.2 Applications
 Keyless entry systems
 Remote control systems
 Alarm systems
 Communication systems
2.3 Features
 fully integrated frequency synthesizer
 VCO without external components
 high efficiency power amplifier
 frequency range 433-435 MHz
 ASK modulation
 low supply current (typically 7 mA)
 voltage supply range 2.1 - 4 V
 power down mode
 low voltage sensor
 clock output for ĀµC
 low external component count




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