BU1924F Datasheet (Rohm) - RDS / RBDS decoder

BU1924F, RDS / RBDS decoder

Pin No.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Symbol QUAL RDATA Vref MUX VDD1 VSS1 VSS3 CMP T2 T1 VSS2 VDD2 XI XO (N.C.) RCLK Crystal oscillator * Demodulator clock Digital power supply 2.7V to 5.5V Connects to 4.332MHz oscillator (refer to input/output circuits) * 1187.5Hz clock (

w w t e RDS h /e RBDS decoder S a BU1924 at / BU1924F / BU1924FS .D w Audio ICs 4U m o .c BU1924 / BU1924F / BU1924FS The BU1924, BU1924F and BU1924FS 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.

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

BU1924F 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. zAbsolute maximum ratings (Ta = 25°C) Parameter Power supply voltage Maximum input voltage Maximum output voltage Symbol VDD Lim