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MLX72013 ASK/FSK发送器IC
文章来源: 更新时间:2013/6/28 14:31:00
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The MLX72013 ASK/FSK transmitter IC is designed for applications in the European 433MHz industrial-scientific-medical (ISM) band, according to the EN 300 220 telecommunications standard; but it can also be used in other counties with similar standards, e.g. FCC part 15.231.
The transmitter’s carrier frequency fc is determined by the frequency of the reference crystal fref. The integrated PLL synthesizer ensures that carrier frequencies, ranging from 425MHz to 445MHz, can be achieved. This is done by using a crystal with a reference frequency according to: fref = fc/N, where N = 16 is the PLL feedback divider ratio.

Features and Benefits

Fully integrated PLL-stabilized VCO Frequency range from 425 MHz to 445 MHz Single-ended RF output FSK through crystal pulling allows modulation from DC to 40 kbit/s High FSK deviation possible for wideband data transmission Wide power supply range from 1.95 V to 5.5 V Operating temperature range -40°C to +125°C Very low standby current On-chip low voltage detector High over-all frequency accuracy FSK deviation and center frequency independently adjustable Adjustable output power range from -16 dBm to +12 dBm Adjustable current consumption from 3.5 mA to 15.9 mA Conforms to EN 300 220 and similar standards

 
 
 
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