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TDA5103A

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.

Parametric TDA5103A Frequency Band 345.0MHz Channel Requirements per Band Single Channel Modulation Type ASK only Transmit Power (@3V) 5.0dBm Temperature  min  max -25.0°C  85.0°C Frequency Range (@ 25°C)  min  max 338.0MHz  352.0MHz Frequency Range  min  max 343.0MHz  347.0MHz Supply Voltage  min  max 2.1V  4.0V Sales Product Name TDA5103A OPN TDA5103AHTMA1 Product Status active and preferred Package Name PG-TSSOP-10 Completely lead free yes Halogen free no RoHS compliant yes Packing Size 5000 Packing Type TAPE & REEL Moisture Level 1

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 Target Applications: Remote Keyless Entry (RKE) systems Remote control systems Alarm systems Communication systems

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