GENERAL DESCRIPTION
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. s FEATURES
fully integrated frequency synthesizer VCO without external components high efficiency power amplifier typ. 10 dBm @ 3 V frequency range 314-317 MHz ASK/FSK modulation low supply current typ. 13 mA@3V Keyless entry systems Remote control systems s s s s voltage supply range 2.1 - 4 V power down mode low voltage sensor programmable divided clock output for µC low external component count s s s s s s APPLICATIONS
s s s s Alarm systems Communication systems Ordering Information Type TDA 5111 available on tape and reel Ordering Code Package P-TSSOP-16 Qxxxxx-Axxxx Wireless Components Product Info Specification, July 2001 w w w .
Infineon Technologies
