GENERAL DESCRIPTION
The SAA2520 performs the sub-band filtering and audio frame codec functions to provide efficient audio compression/decompression for MPEG (11172-3) Layer1 applications. It is capable of functioning as a stand-alone decoder but requires the addition of an adaptive masking threshold processor (SAA2521) in order to function as a highly efficient encoder.

FEATURES
• Stereo filtering and codec functions in a single chip
• MPEG coded interface
• Filtered data interface
• Baseband audio data interface
• LT interface to microcontroller
• Clock generator
• Low operating voltage capability.