The BU1923 and BU1923F are RDS / RBDS decoders that employ a digital PLL and have a built-in anti-aliasing filter and an eight-stage BPF (switched-capacitor filter). Linear CMOS circuitry is used for low power consumption. Features 1) Low current. 2) Two-stage anti-aliasing filter (LPF). 3) 57kHz band-pass filter. 4) DSB demodulation (digital PLL). 5) Quality indication output for demodulated data. Applications RDS / RBDS compatible FM receivers for American and European markets, car stereos, high-fidelity stereo systems and components, and FM pagers.
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