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Multi-chip PLL receiver supplied in an SO20 package specifically developed for low-cost RF ASK or FSK data transmission systems with low data rates from 1kBaud to 1 kBaud (1kBaud to 3.2kBaud for FSK) in Manchester or Bi-phase code. Works with Atmel's PL RF transmitter U2741B. The frequency receiving range is 300 MHz to 450 MHz.Main applications are telemetering, security technology, and keyless-entry systems.