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).