SAA2505H

INTEGRATED CIRCUITS DATA SHEET SAA2505H Digital multi-channel audio IC (DUET) Preliminary specification File under Integrated Circuits, IC01 1998 Mar 10 Philips Semiconductors Preliminary specification Digital multi-channel audio IC (DUET) FEATURES Hardware features Two 40 MIPS 20-bit DSP cores All input and output buffer RAM is on-chip Program ROM on-chip for all decoding modes Two I2S-bus inputs with normal, double and quad speed mode (slave only) Second serial input usable for ADC (Karaoke input) Three normal and double speed I2S-bus outputs (slave and master from 256 and 384fs) One normal, double, quad speed I2S-bus output (slave and master from 256 and 384fs) Japanese EIAJ serial input and output formats Sony Philips Digital Interface (SPDIF) output I2C-bus control (up to 400 kHz) 3.3 V supply with 5 V TTL compatible inputs/outputs Boundary scan for printed-circuit board testing. Software features AC-3 up to 5.1 channels MPEG 2 L2 up to 7.1 channels MPEG 1 L2 (Video-CD) 2 channels at 44.1 kHz Dolby pro-logic decoding at 32, 44.1 and 48 kHz Output configuration for 7, 5, 4, 3, 2 and 1 channels with or without Low Frequency Enhancement (LFE) Bass redirection for small satellite loudspeakers plus subwoofer Karaoke voice mix Dynamic range compression (AC-3 and MPEG) Adjustable delay up to 15 ms for surround channels (1.5 kbyte words) Adjustable delay up to 5 ms for centre channel (250 words) Rounding to DAC word length Mute ...