TDA5103A Datasheet PDF - Infineon

●Description:

●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