ADSP-21368:  High-Performance 32-bit Floating-Point SHARC Processor for Professional Audio Applications

The third generation of SHARC® Processors offers increased performance, audio and application-focused peripherals, and new memory configurations. The ADSP-21368 increases performance to 400MHz ...More

ADSP-21368:  High-Performance 32-bit Floating-Point SHARC Processor for Professional Audio Applications

Product Description

The third generation of SHARC® Processors offers increased performance, audio and application-focused peripherals, and new memory configurations. The ADSP-21368 increases performance to 400MHz while simplifying algorithm development with the integration of a high-bandwidth and very flexible external memory interface. The ADSP-21368 is based on a single-instruction, multiple-data (SIMD) core which supports both 32-bit fixed-point and 32-/40-bit floating point arithmetic formats and is completely code-compatible with all prior SHARC Processors allowing for maximum reuse of legacy code.

The ADSP-21368 increases the amount of on-chip memory to 2Mb SRAM and 6Mb ROM while integrating a variety of audio-specific and general purpose peripherals. Peripherals such as an all digital S/PDIF transmitter/receiver, 8-channel asynchronous sample rate converter, 8 high-speed serial ports, 4 precision clock generators, and multiple serial interfaces combine to ensure the ADSP-21368 maximizes system throughput while minimizing system bill of materials costs.

The ADSP-21368 also provides hardware support for connection multiple processors to a single, shared external memory array. The support includes:

  • Distributed, on-chip arbitration for the shared external bus
  • Fixed and rotating priority bus arbitration
  • Bus timeout logic
  • Bus lock

Features

  • 400MHz SIMD SHARC Core, capable of 2.4 GFLOPS peak performance
  • 2Mbits SRAM; 6 Mbits customer-definable ROM
  • High bandwidth, 32-bit external memory interface supporting glue-less interface to SDRAM, SRAM, and FLASH
  • Digital Audio Interface (DAI) enabling user-definable access to system peripherals including 8 serial ports (SPORTs), S/PDIF Tx/Rx, 8-channel asynchronous sample rate converter, and 4 precision clock generators.
  • Hardware support for shared external memory
  • Digital Peripheral Interface (DPI) enabling user-definable access to system peripherals including 2 SPI-compatible ports, 2 UARTs, 3 full-featured timers, and a two-wire interface compliant to the I2C standard.
  • 34 zero-overhead DMA channels
  • 16 Pulse Width Modulation (PWM) channels
  • 256-ball SBGA package
  • Commercial and industrial temperature ranges

Diagrams

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ADSP-21368 Diagram
Functional Block Diagram for ADSP-21368

Markets & Applications

  • Digital mixing consoles
  • Advanced effects processors
  • Reverberation units
  • Multi-band Equalizers
  • Compressors/Limiters
  • Multi-zone audio processors
  • Synthesizers
  • Industrial and Instrumentation

Specifications

Clock Speed (MHz) 400MHz
MMACs 800
MFLOPs 2400
On-Chip SRAM (Mbits) 2Mbit
Serial Ports 8
Core Voltage (V) 1.3V
DAI X
Package SBGA
Sample Rate Converters X
SPDIF/DTCP X/ No DTCP
Pricing, Packaging & Availability

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  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples iinto your cart to check sample availability.

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