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For ultra-compact processing of high definition audio standards including HD-DVD and Blu-ray, Freescale Semiconductor has created the Symphony™ audio DSP56720 and DSP56721 multi-core processors. The new audio DSPs consolidate processing for the latest decoding standards with advanced post processing on the same chip.

Both devices feature dual DSP56300 24-bit cores, capable of 200 MIPS and 200MHz per core to meet the performance requirements of high definition audio standards including DTS-HD, Dolby® Digital+ and Dolby TrueHD. With large, integrated memories, these devices also eliminate the need for external memory in most consumer applications, enabling a single chip offering that delivers a simple and cost effective solution. The Symphony DSP56720 adds an external memory interface for audio applications that use external memory to accommodate long delays such as reverbs and lip sync. Both devices are code compatible with existing Freescale 24-bit DSP solutions. They also incorporate the same plug-and-play software architecture that exists in the Freescale DSP563xx family, allowing fast and easy migration to the higher performance solution. In addition to supporting the standard audio decoders, the new processors also enhance flexibility through customization of post-processing algorithms.

 

FEATURES 10-channel Asynchronous Sample Rate Converter (ASRC) S/PDIF transceiver Enhanced Serial Audio Interfaces (ESAI) Two Serial Host Interfaces (SHIs) On-chip PLL External Memory Controller (DSP56720 only)

APPLICATIONS Automotive head units Professional consoles and recording equipment Cinema processors Concert systems Presentation and promotional systems Home A/V receivers

 

 

 

DSP56720 –Multi-Core Audio Processor Features

• Fully synthesized DSP56300 core
• ~200+ MHz speed (0.09u) @ -40 - +105ºC for ~400MIPs!
• Expanded DMA to 8 channel/core from current 6
• Off-chip memory
• SDRAM, SRAM, FLASH, EPROM
• On-chip memory
• 248K x 24-bit words RAM
• 608K x 24-bit words ROM
• Integrated peripherals
• S/PDIF transceiver
• 10 channel ASRC up to 192kHz. 3 In, 3 Out clocks
• 4 Enhanced Serial Audio Interfaces
  (each with 2 outputs and 4 input/output I²S stereo pairs; TDM mode supported also)
• On-chip PLL for DSP cores
• 2 SHI (supports SPI and I²C Master/Slave)
• 2 triple timer modules
• HDI24 parallel port interface per core, sharing external pins
• JTAG w/ 2 OnCE
• Packaging options
• 144-pin LQFP (no HDI24)
• 208-pin MAPBGA (HDI24)

 

 

 

DSP56721 –Multi-Core Audio Processor Features

• Fully Synthesized DSP56300 core
• ~200+ MHz Speed (0.09u) @ -40 - +105ºC for ~400MIPs
• Expanded DMA to 8 channel/core from current 6
• On-chip memory
• 248K x 24-bit words RAM
• 608K x 24-bit words ROM
• Integrated Peripherals
• S/PDIF transceiver
• 10 channel ASRC up to 192kHz. 3 In, 3 Out clocks
• 4 Enhanced Serial Audio Interfaces
  (each with 2 outputs and 4 input/output I²S stereo pairs; TDM mode supported also)
• On-chip PLL for DSP cores
• 2 SHI (supports SPI and I²C Master/Slave)
• HDI24 parallel port interface per core, sharing external pins
• 2 triple timer modules
• JTAG w/ 2 OnCE
• Packaging options
• 80-pin LQFP (no HDI24)
• 144-pin LQFP (HDI24 –8 bits)

 

 

 

DSP5672x –Multi-Core Architecture

• Dual Symphony DSP Cores
• DSP563xx compatibility
• 8 channels DMA / core
• Extended number of interrupts
• Intercore communication
• Shared memory
• Interrupts (NMI,IRQ)
• Polling common int. regs
• Switchable memory configurations
• Complete audio software library

 

 

For more information on Freescale’s Symphony™ Audio DSPs, click here.

 

 

 Featured Products

Part Number		Description	Data Sheet	App. Notes
DSPB720DB1E		Evaluation Board for the Dual-core 24-bit Audio Processor

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