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TDK5111

The TDK 5111 is a single chip ASK/ FSK transmitter for the frequency band 314-317 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. The IC can be used for both ASK and FSK modulation.

Parametric TDK5111 Frequency Band 315.0MHz Channel Requirements per Band Single Channel Modulation Type ASK / FSK Transmit Power (@3V) 10.0dBm Temperature  min  max -40.0°C  125.0°C Frequency Range (@ 25°C)  min  max 305.0MHz  325.0MHz Frequency Range  min  max 311.0MHz  317.0MHz Supply Voltage  min  max 2.1V  4.0V Sales Product Name TDK5111 OPN TDK5111XUMA1 Product Status not for new design Package Name PG-TSSOP-16 Completely lead free yes Halogen free yes RoHS compliant yes Packing Size 3000 Packing Type TAPE & REEL Moisture Level 3

Summary of Features: Fully integrated frequency synthesizer VCO without external components High efficiency power amplifier typically 10 dBm @ 3 V Frequency range 314-317 MHz ASK/FSK modulation Low supply current typ. 13 mA@3V Voltage supply range 2.1 - 4 V Power down mode Low voltage sensor Programmable divided 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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