Maxim Integrated Products has designed a tuner IC for digital audio broadcast (DAB) applications which integrates a radio tuner, analogue-to-digital converter (ADC), and digital filtering, and uses a digital I2S output to interface directly to digital signal processors (DSPs).
Dubbed "RF to Bits", the supplier's radio platform is designed to allow the implementation of baseband processing using off-the-shelf DSPs.
Source:
http://www.electronicsweekly.com/Articles/2013/04/15/55931/maxim-dab-tuner-supports-software-defined-radio.htm