LMX2240 Intermediate Frequency Receiver April 1995 LMX2240 Intermediate Frequency Receiver General Description The LMX2240 is a monolithic integrated intermediate frequency receiver suitable for use in Digital European Cordless Telecommunications (DECT) systems as well as other mobile telephony and wireless communications applications It is fabricated using National’s ABiCTM IV BiCMOS process (fT e 15 GHz) The LMX2240 consists of a high gain limiting amplifier a frequency discriminator and a received signal strength indicator (RSSI) The high gain limiting amplifier and discriminator operate in the 40 MHz to 150 MHz frequency range and the limiter has approximately 70 dB of gain The use of ...

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