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, a selectable crystal oscillator frequency and a divided clock output are implemented. The IC can be used for both ASK and FSK modulation. FEATURES
I fully integrated frequency synthesizer I VCO without external components I high efficiency power amplifier I power down mode I low voltage sensor I selectable crystal oscillator 7.15 MHz/14.3 MHz I frequency range 905-925 MHz I ASK/FSK modulation I low supply current (typically 7mA) I programmable divided clock output for µC I low external component count I voltage supply range 2.1 - 4 V APPLICATIONS
I Keyless entry systems I Remote control systems I Alarm systems I Communication systems Ordering Informatio...
Infineon Technologies
