The TDA 5103A is a single chip ASK transmitter for the frequency band 344- 347 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. Additionally features like a power down mode, a low power detect and a divided clock output are implemented.
Summary of Features:
- Fully integrated frequency synthesizer
- VCO without external components
- High efficiency power amplifier
- Frequency range 344-347 MHz
- ASK modulation
- Low supply current (typically 7mA)
- Voltage supply range 2.1 - 4 V
- Power down mode
- Low voltage sensor
- Clock output for μC
- Low external component count
- Remote Keyless Entry (RKE) systems
- Remote control systems
- Alarm systems
- Communication systems
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