The CS494xx audio decoder DSP family is a market-specific consumer entertainment processor targeted for audio/video receivers and DVD players. The CS494003 integrates an enhanced version of the CS49300 Family DSP audio decoder and a 32-bit programmable post-processor DSP and allows the designer to differentiate products through the Cirrus Logic Framework programming structure and Framework module library.
Dolby Pro Logic II, DTS Digital Surround, MPEG Multichannel and Cirrus Logic Original Surround 6.1 PCM (pulse code modulation) Effects Processor — the last capable of generating audio modes such as "Hall," "Theater" and "Church" — are included in the cost of the CS49400. Additional algorithms, available through the Cirrus Logic software licensing program, give the designer even more ability to deliver end-product differentiation.
- CS49300 legacy audio decoder support
- Dolby Digital EX, Dolby Pro Logic IIx, Dolby Digital Headphone®, Dolby Digital Virtual Speaker®
- DTS 96/24™, DTS-ES Discrete 6.1™, DTS-ES Matrix 6.1™, DTS Digital Surround® and DTS Virtual 5.1™
- MPEG-2: AAC Multichannel 5.1
- MPEG Multichannel and Musicam
- MPEG-1/2, Layer III (MP3)
- DTS Neo:6, SRS Circle Surround II
- Cirrus Extra Surround, Cirrus Original Surround 6.1 (C.O.S. 6.1), Intelligent Room Calibration™
- THX Select
- 12-channel serial audio inputs
- Integrated 8 KB input buffer
- Powerful 32-bit audio DSP
- Customer software security keys
- Large on-chip X, Y and program RAM
- Supports SDRAM, SRAM, Flash memories
- 16-channel PCM output
- Dual S/PDIF transmitters
- SPI serial and Motorola and Intel parallel host control interfaces
- Package: 144-pin LQFP; lead-free assembly
