Universal audio processor supports multiple sources and effects

For enhanced audio control in television and video equipment, the NXP Semiconductors TDA9859 universal hi-fi audio processor accepts signals from up to three stereo sources and provides control facilities for both the main and SCART channels.

The TDA9859 is built around a crossbar switch enabling switching of six audiofrequency inputs, thereby supporting three stereo sources or six mono sources. Each of the input signals can be switched to each of the outputs, providing the maximum adaptability and supporting versatile controls. Since the main channel is looped around the outside of the TDA9859, designers can route signals to the line output or insert a surround-sound processor.

Integrated audio processing capabilities include several audio effects such as stereo with spatial effect and forced mono with pseudo stereo. The volume of left and right channels can also be controlled simultaneously or independently, and controls for treble and bass are included.

 

FEATURES Two general-purpose logic output ports I2C-bus control of all functions 85dB muting Bass control range: -12dB to +15dB Treble control range: -12dB to +12dB

APPLICATIONS High-end televisions Exhibition display systems Video presentation equipment Security video systems

 

NXP Semiconductors/TDA9859