One chip covers transatlantic radio data services

Edited by the Electronicstalk editorial team Dec 4, 2002

A new audio IC simplifies the design of radio receiver applications by integrating European RDS and American RBDS decoding functionality in a single low-power chip.

A new audio IC from Rohm simplifies the design of radio receiver applications by integrating European RDS (Radio Data System) and American RBDS (Radio Broadcast Data System) decoding functionality in a single, low-power chip.

Rohm's BU1924 RDS/RBDS is a CMOS-based decoder IC featuring a two-stage anti-aliasing lowpass filter, a 57kHz eight-stage bandpass filter, and a digital PLL for DSB demodulation.

A quality indication output for demodulated data is also provided.

The BU1924 is ideal for RDS/RBDS-compatible FM receivers including home stereo systems, car radios and FM pagers.

By offering RDS and RBDS functionality the device is particularly suited to radio products designed for operation in both Europe and the USA.

Designed to operate with a nominal 5V supply voltage, the BU1924 has a maximum power dissipation of 350mW at 25C.

The device is available in either SOP16 surface mount packaging or as a DIP16 through-hole device.

Operating temperature for the BU1924 is rated at -40 to 85C.