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Ezairo® 7160 SL Pre Suite Getting Started Guide
Figure 12. Successful Connection
4.2 Example Operations
4.2.1 Audio Path Configuration
Once connected to a device, it is possible to read, write and burn parameters to the Ezairo 7160 SL internal NVM.
The steps below illustrate how to configure the built-in sound generator to generate an audio signal from the
Ezairo 7160 SL.
4.2.1.1 What You Need
Before beginning, you need to connect headphones or some other audio equipment to the output of the
Ezairo 7160 SL Hybrid Demonstrator Board. Please refer to the Ezairo 7160 SL Hybrid Demo Board User's Manual for
details.
The direct audio output from Ezairo 7160 SL is a pulse density modulated signal that can be used to directly drive
hearing aid receivers or high impedance headphones. It is available on pins 2 and 4 of the header pins labelled
The Demonstrator Board also provides a low-pass filtered output that is more appropriate for connection to sound
cards and other audio equipment. The filtered output is enabled by connecting jumpers across pins 1 and 2 and 3 and 4
of header pin connector labelled
4.2.1.2 Enable the Sound Generator
If you are using a new device for the first time, all parameters need to be set to their default settings, as shown in the
E7160SL.param file. If you are uncertain of the device state, or to ensure that the Sound Designer Software parameters
are consistent with those stored in the device, you can perform a Burn All to NVM operation. This operation burns all
ON Semiconductor Confidential
. The filtered audio output is then available across pins labelled
FILTEN0
www.onsemi.com
18
.
FILTEN0
.
OUT0
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