Audio Processor, DSP for Hearing Aids

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Overview

Ezairo® 7111 is an open-programmable DSP-based hybrid module designed specifically for non-wireless hearing aids, including In-the-Canal (ITC) applications.

What's Included in Ezairo 7111

  • Ezairo 7100 Digital Signal Processor (DSP): Includes a high precision, quad-core architecture that delivers 375 MIPS without sacrificing power consumption.
  • EA2M: 2 Mb EEPROM memory for storing important hearing aid parameters and firmware.

  • Passive Components: Enables direct interfacing with hearing aid transducers.

Development Tools

  • Ezairo Preconfigured Suite
  • Open-Programmable Evaluation & Development Kit (EDK)

Please contact your Sales Representative or Specialist Partner Seltech for more information about the Ezairo products.

  • Audio Processing
  • Hearing Aids
  • Ezairo Pre Suite Firmware Bundle: Provides up to 8 channels of Wide Dynamic Range Compression (WDRC), 16 kHz sampling rate, and adaptive audio algorithms including a new feedback canceller.
  • Miniature, User-Friendly Package: Features large pads for easy hand soldering.
  • Ultra-Low Power Consumption: 1090 µA while running Ezairo Pre Suite firmware bundle @ 10.24 MHz with all algorithms active.
  • Flexible Programmability: Open-programmable DSP-based system can be customized to the specific signal-processing needs of any manufacturer. Modify or add new algorithms or features without making changes to the chip.
  • Quad-Core Architecture: Industry's most integrated, flexible, and power efficient single-chip solution. Features a CFX DSP, HEAR Configurable Accelerator, Arm® Cortex®-M3 processor.
  • Ultra-High Audio Fidelity: Provides 85 dB system dynamic range with up to 110 input signal dynamic range to preserve a more detailed sound.
  • Configurable System Clock Speeds: Twelve clocking speeds to maximize computing performance versus power consumption.
  • Low Audio Delay: Programmable Filter Engine supports 0.044 ms audio delay.

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WDRC Channels

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Reference Price

E7111-0-102A19-AG

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Active

CAD Model

Pb

A

H

P

SIP-19

3

260

REEL

250

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8

33

8

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E7111-0-102A19-BPG

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Active

CAD Model

Pb

A

H

P

SIP-19

3

260

BTRAY

25

N

8

33

8

Automatic Adaptive Directionality

Tone Sequences

Digital Volume Control

-

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