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Manufacturer / Brand: AD
Details: SigmaDSP® Digital Audio Processor with Flexible Audio Routing Matrix IC
Series: ADAU1445
Quantity Available: Over 69840 pieces

Datasheet for ADAU1445YSVZ-3A:

ADAU1445YSVZ-3A datasheet
Price for ADAU1445YSVZ-3A
Product Parameters
  • Manufacturer Part Number : ADAU1445YSVZ-3A
  • Manufacturer : AD
  • Description : SigmaDSP® Digital Audio Processor with Flexible Audio Routing Matrix IC
  • Series : ADAU1445
  • Reference Price : USD 6.448
  • Our Price : We have a better price, contact us by email
  • Product Type : Audio Signal Processors
  • Function : SigmaDSP Audio Processors
  • Current Suggest : Production
  • Status : Production
  • ROHS Status : ROHS Compliant (Lead Free)
  • Package Type : 100-Lead TQFP (14mm x 14mm w/ EP)
  • Pins : 100
  • MFG Package Case : SV-100-8
  • Part Type : OTH
  • Standard Packing Type : Tray
  • Standard Packing Quantity : 90
  • Working Temperature : -40 to 105C
  • Other Part Number : ADAU1445YSVZ-3A
  • Shipping methods : DHL FEDEX UPS TNT
  • Delivery Time : Ship within 1 day.
  • Manufacturer Production time : 6-8 weeks (Normally have stocks)
  • Weight : 0.001KG

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Features and Benefits of ADAU1445YSVZ-3A
  • Fully programmable audio digital signal processor (DSP) for enhanced sound processing
  • Features SigmaStudio™, a proprietary graphical programming tool for the development of custom signal flows
  • 172 MHz SigmaDSP core; 3584 instructions per sample at 48 kHz
  • 4k parameter RAM, 8k data RAM
  • Flexible audio routing matrix (FARM)
    24-channel digital input and output
    Two 8-channel asynchronous sample rate converters (from 1:8 up to 7.75:1 ratio and 139 dB DNR)
  • Stereo S/PDIF input and output
  • Supports serial and TDM I/O, up to fS = 192 kHz
  • See data sheet for additional information
Product Detailed Description for ADAU1445YSVZ-3A
The ADAU1442/ADAU1445/ADAU1446 are enhanced audio processors that allow full flexibility in routing all input and output signals. The SigmaDSP® core features full 28-bit processing (56-bit in double-precision mode), synchronous parameter loading for ensuring filter stability, and 100% code efficiency with the SigmaStudio™ tools. This DSP allows system designers to compensate for the real-world limitations of speakers, amplifiers, and listening environments, resulting in a dramatic improvement of the perceived audio quality through speaker equalization, multiband compression, limiting, and third-party branded algorithms.

The flexible audio routing matrix (FARM) allows the user to multiplex inputs from multiple sources running at various sample rates to or from the SigmaDSP core. This drastically reduces the complexity of signal routing and clocking issues in the audio system. FARM includes up to eight stereo asynchronous sample rate converters (depending on the device model), Sony/ Philips Digital Interconnect Format (S/PDIF) input and output, and serial (I2S) and time division multiplexing (TDM) I/Os. Any of these inputs can be routed to the SigmaDSP core or to any of the asynchronous sample rate converters (ASRCs). Similarly, any one of the output signals can be taken from the SigmaDSP core or from any of the ASRC outputs. This routing scheme, which can be modified at any time via control registers, allows for maximum system flexibility.

The ADAU1442, ADAU1445, and ADAU1446 differ only in ASRC functionality and packaging. The ADAU1442/ADAU1445 contain 16 channels of ASRCs and are packaged in TQFP packages, whereas the ADAU1446 contains no ASRCs and is packaged in an LQFP. The ADAU1442 can handle nine clock domains, the ADAU1445 can handle three clock domains, and the ADAU1446 can handle one clock domain.

The ADAU1442/ADAU1445/ADAU1446 can be controlled in one of two operational modes: the settings of the chip can be loaded and dynamically updated through the SPI/I2C® port, or the DSP can self-boot from an external EEPROM in a system with no microcontroller. There is also a bank of multipurpose (MP) pins that can be used as general-purpose digital I/Os or as inputs to the 4-channel auxiliary control ADC.

The ADAU1442/ADAU1445/ADAU1446 are supported by the SigmaStudio graphical development environment. This software includes audio processing blocks such as FIR and IIR filters, dynamics processors, mixers, low level DSP functions, and third-party algorithms for fast development of custom signal flows.

Applications

  • Automotive audio processing
    Head units
    Navigation systems
    Rear-seat entertainment systems
    DSP amplifiers (sound system amplifiers)
  • Commercial audio processing

Data Sheet, Rev. B, 04/10

Lifecycle information of ADAU1445YSVZ-3A

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

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