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 Multi-channel 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. This Cirrus Logic DSP contains sufficient on-chip SRAM to support all major audio decoding algorithms available today, including AAC Multi-channel, DTS 96/24 and DTS-ES 96/24. The CS494xx also supports a glueless SDRAM/SRAM for increased all-channel delays. The SRAM interface supports connection to an external byte-wide Flash memory, allowing products to be field-upgradable as new audio algorithms are developed. The CS494xx, when coupled with Cirrus Logic-certified decoder library, digital interface products and mixed-signal data converters, enables the conception and design of the next-generation of digital entertainment products.
Features
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 Multi-channel 5.1
MPEG Multi-channel 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
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 Multi-channel 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. This Cirrus Logic DSP contains sufficient on-chip SRAM to support all major audio decoding algorithms available today, including AAC Multi-channel, DTS 96/24 and DTS-ES 96/24. The CS494xx also supports a glueless SDRAM/SRAM for increased all-channel delays. The SRAM interface supports connection to an external byte-wide Flash memory, allowing products to be field-upgradable as new audio algorithms are developed. The CS494xx, when coupled with Cirrus Logic-certified decoder library, digital interface products and mixed-signal data converters, enables the conception and design of the next-generation of digital entertainment products.
Features
- 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 Multi-channel 5.1
- MPEG Multi-channel 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
