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).