SHARC-Melody

• Computation units (ALU, multiplier, and shifter) with a shared data register file
• Data address generators (DAG1, DAG2)
• Program sequencer with instruction cache
• Timers with event capture modes
• On-chip, dual-ported SRAM
• External port for interfacing to off-chip memory and pe-ripherals
• Host port and SDRAM interface
• DMA controller
• Enhanced serial ports
• JTAG test access port

The SHARC-Melody Ultra family of powerful 32-bit audio processors from Analog Devices enables flexible designs and delivers a host of features across high-end and high fidelity audio systems to the AV receiver and DVD markets. SHARC-Melody includes multichannel audio decoders, encoders, and postprocessors for digital audio designs using DSPs in home theater systems and automotive audio receivers.

With 32-bit audio quality, the SHARC-Melody Ultra audio processor autodetects and decodes audio formats in real time, enabling end users to enjoy a theater-quality audio experience in their homes and automobiles.

The designs of SHARC-Melody can be customized to meet the exact requirements of the application. This audio DSP system enables designers to make value additions to product features working off the high-end base functionality with which they are provided.

Evaluation boards, sample applications and all necessary soft-ware support (e.g., drivers) are available. The evaluation board enables OEMs to offer comprehensive and single-chip imple-mentations of advanced features for end-user products. SHARC-Melody Ultra audio processors enable OEMs to produce high quality, low cost designs featuring decoder algorithms and post-processors for DTS-ES Extended Surround (including both DTS Discrete 6.1 and DTS Matrix 6.1), DTS Neo:6, Dolby Digi-tal, Dolby Pro Logic II, Dolby Headphone, Dolby Virtual Speaker Technology, THX Ultra2, HDCD, MPEG1 Audio Layer 3 (also known as MP 3), MPEG2 multichannel, AAC, WaveSur-round, SRS Labs' Circle Surround II, and stereo. It additionally includes audio encoders for DDCE.

The cost of development is reduced, enabling common solu-tions across product lines. Field and remotely upgradeable products with programmable DSPs and an optimized library of routines, along with the best development tools in the industry, reduce the time to market.

SHARC Melody Ultra is the comprehensive answer to the needs of the high-end, high quality digital audio market. It delivers a realistic high fidelity audio experience along with the maximum number of features in the product, across price points in the high-end home theater and DVD markets.

LD/DVD/CD players or stream generators, decodes the bit stream, and generates a PCM stream in real time in 2-channel or multichannel mode. It has a microcontroller to handle com-mands and option selections from a small keypad and an LCD display for status display.