GENERAL DESCRIPTION
The SAA2521 performs the adaptive allocation and scaling function for calculating the masking thresholds and sub-band sample accuracy in MPEG layer 1 applications. The SAA2521 is intended for use in conjunction with the stereo filter codec SAA2520.

FEATURES
• Stereo or 2-channel mono encoding
• Status may be read continuously
• Microcontroller interface
• I2S-interfaces
• Allocation algorithm including optional emphasis correction (for 44.1 kHz)
• Reduced power consumption
• 4 V nominal operating voltage capability.