ADAU1445YSVZ-3A SigmaDSP Audio Processors by Analog Devices

SigmaDSP Audio Processors
Status: Production
Series: ADAU1445
RoHS: Compliant
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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.

Where to Buy

Prices starting from US$10.35

Distributor Stock
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Newark Electronics
from US$16.52
717
in stock
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element14
from US$15.15
717
in stock
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Farnell
from US$14.24
717
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Analog Devices
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Features

Fully programmable audio digital signal processor (DSP) for enhanced sound processing
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)
Features SigmaStudio™, a proprietary graphical programming tool for the development of custom signal flows
Stereo S/PDIF input and output
172 MHz SigmaDSP core; 3584 instructions per sample at 48 kHz
Supports serial and TDM I/O, up to fS = 192 kHz
See data sheet for additional information

Alternative Descriptions

Audio Processor, 16 Channel, Tqfp-Ep | Newark Electronics
AUDIO PROCESSOR, 16 CHANNEL, TQFP-EP | element14
175MHZ SigmaDSP,2x8 SRCs | Analog Devices

Frequently Asked Questions

Where can I find additional details, specifications and documents for a ADAU1445YSVZ-3A?

Additional datasheets, footprints and schematics for ADAU1445YSVZ-3A are listed on our Part Details page. You can also find images and similar parts to ADAU1445YSVZ-3A on this page.

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What category does ADAU1445YSVZ-3A fall under?

The ADAU1445YSVZ-3A is listed under SigmaDSP Audio Processors.

Can I view similar or alternative parts?

You can view similar parts to ADAU1445YSVZ-3A when available in the SigmaDSP Audio Processors range under the specifications section at the bottom of the details page.

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Is the ADAU1445YSVZ-3A RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Analog Devices.

Which authorised distributors for ADAU1445YSVZ-3A have stock available?

Authorised distributors including Newark Electronics, element14, Farnell and Analog Devices have stock available or on a lead time for ADAU1445YSVZ-3A.

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