Description
The CXA1742Q is an analog cellular(AMPS) FM IF IC which include an IF filter.
   
Features
• Include a ceramic filter function, which is normally
    mounted externally.
• Quadrature detection discriminator function.
• This IC has almost all IF functions and is ideal for
    reduction in set size because of few external parts
    required.
• Channel filter conforming to the AMPS standard.
• Wide operating voltage range (2.7 V to 3.6 V) and
    low current consumption (Icc=10 mA (typ.) when
    Vcc= 3 V).
• Wide range and excellent temperature
    characteristics for the RSSI (receiving signal
    strength indicator).
   
Applications
    Ideally suited for cellular phones, particularly handheld sets.