GENERAL DESCRIPTION
The SAA2003 performs the sub-band filtering and audio frame codec functions in the Precision Adaptive Sub-band Coding (PASC) system. It can be used as a stand-alone decoder for playback only applications, but requires the addition of an Adaptive Allocation and Scale Factor processor (SAA2013) in order to perform PASC encoding in a DCC record system.

FEATURES
• Single-chip stereo filter and codec
• Wide operating voltage range: 2.7 to 5.5 V
• Low-power consumption: 98 mW; 3.0 V
• Sleep mode for low power and low Electromagnetic Interference (EMI)
• Transparent serial audio data mode in sleep
• IEC 958 digital output
• Peak level detector for start of track detection or VU meter
• Versatile fade processor; slow/fast fade, mute, 12 dB attenuation
• Serial audio interface for I2S or EIAJ formats
• Error concealment
• Three-wire L3 bus microcontroller interface
• Three sample rates:
    – 32 kHz
    – 44.1 kHz
    – 48 kHz
• Internal or external clock source
• Three programmable outputs
• Small surface mounted package (SOT307).