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Regulated
Microphone
Supply
A/D
Calib.
Mic
Swap
A/D
Calib.
Biquad
Calib.
A/D
Filter
A/D
Wireless Audio
Tone Generator
Voice
G.722
Alerts
Decoder
2 Mb EEPROM
Figure 3. Ezairo 7160 SL Firmware Bundle Block Diagram
Full product information is provided in the Ezairo 7160 SL Firmware Bundle User's Guide, which is included with
the Sound Designer Software Windows Application.
2.3 Sound Designer Software
The Ezairo Sound Designer Software Application is an engineering tool that allows Hearing Aid manufacturers to
configure any Pre Suite Firmware bundle and derive several different Hearing Aid end products. Sound Designer
Software consists of the Sound Designer Software Windows Application and the Sound Designer Software
Development Kit (SDK).
The Sound Designer Software Application provides a complete desktop environment for hearing aid design. It
integrates a device modeler, parameter map editor, product library manager, device control panel, and a calibration and
configuration utility. This allows hearing aid manufacturers to create, configure, and test hearing aids more efficiently,
with less time spent on repetitive tasks. The application's menu is shown in Figure 4 on page 6.
ON Semiconductor Confidential
Input-Referred
Signal Insertion
Frequency
Directional
Pre Biquad
Band
+
Processing
Filters
Analysis
+
Auxiliary Input
High
Band
Frequency
Gain
Band
Low
Analysis
Band
Gain
Sound Generator
(Tinnitus)
To Input-Referred FIFO
Acoustic
Indicators
To Output-Referred FIFO
Datalogging
www.onsemi.com
Vbat
POR
Power
Diagnostics
Circuitry
Management
Signal Insertion
WDRC
VC
Frequency
In-Channel
Post Biquad
Band
Noise Reduction
+
AGCo
Filters
Synthesis
Equalizer
Feedback Canceller
Frequency
Band
Analysis
Measurement Tool
(Chirp Generation)
-WB Gain
VC
Profile and
Environmental
Parameter
Classifier
Adjustment
Wireless
Fitting
(Bluetooth® Low Energy and Audio Streaming)
Coded
G.722
To Wireless Audio
Wireless
Decoder
Audio
5
ON Semiconductor
Clock
Internal
Management
Oscillator
Automatic
Outut-Referred
Receiver
Detection
(ARD)
Wideband
AGCo
Rec
+
+
D/A
Calib.
Output
Limiter
Feedback Path
MMI
Programming
Interface
Remote
Control
Over BLE
ON Semiconductor RSL10
2.4 GHz Wireless Radio IC
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