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ON Semiconductor Confidential
D
OCUMENT
N
UMBER
M-20869-001
Ezairo® 7111 V2 Pre Suite Getting Started Guide
1. I
NTRODUCTION
Ezairo 7111 V2 Pre Suite is a comprehensive turnkey solution for hearing aids. The Ezairo 7111 V2 firmware
provides numerous feature enhancements while still using the Ezairo 7111 hybrid hardware. Using the various tools
described in this document, Ezairo 7111 V2 Pre Suite greatly simplifies the development of hearing-aid products.
This document provides a guide for getting started with Ezairo 7111 V2 Pre Suite, illustrating interaction of the
system components and required tools.
2. P
RODUCT
O
VERVIEW
Ezairo 7111 V2 Pre Suite is comprised of the Ezairo 7111 hybrid module and the Ezairo 7111 V2 Firmware
Bundle. The product is configured using Sound Designer Software, the Ezairo 7111 Hybrid Demonstrator Board, and
a programming box that provides PC-to-device communications. The following sections provide a brief overview of
each component. Figure 1 illustrates a typical evaluation and development setup.
Figure 1. Typical Evaluation and Development Setup
2.1 Ezairo 7111 V2 Hybrid Module
Ezairo 7111 is an open-programmable DSP-based hybrid module specifically designed for high-performance
hearing aids. The Ezairo 7111 hybrid is comprised of: the Ezairo 7100SL System-on-Chip (SoC) audiology
processor; EA2M, a 2 Mb EEPROM; and all necessary passive components for operating the sub-system and
interfacing with hearing aid transducers.
A hearing-aid connection diagram using the Ezairo 7111 hybrid and the Pre Suite firmware is shown in Figure 2
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