828

Audio ICs

RDS / RBDS decoder

BU1923 / BU1923F

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.

FApplications

RDS / RBDS compatible FM receivers for American and European markets, car stereos, high-fidelity stereo systems

and components, and FM pagers.

FFeatures

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.

FAbsolute maximum ratings (Ta = 25_C)

FRecommended operating conditions (Ta = 25_C)