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mikroSDK Library

Headphone AMP 3 Click

Rating:

0

Author: MIKROE

Last Updated: 2024-10-31

Package Version: 2.1.0.8

mikroSDK Library: 2.0.0.0

Category: Signal processing

Downloaded: 176 times

Not followed.

License: MIT license  

Headphone AMP 3 Click is a compact add-on board that contains a stereo headphone amplifier. This board features the INA1620, a high-fidelity audio operational amplifier with integrated thin-film resistors and EMI filters from Texas Instruments. Over its dual amplifiers, it achieves a very low noise density and drives a 32Ω load at 150mW of output power.

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mikroSDK Library Blog


Headphone AMP 3 Click

Headphone AMP 3 Click is a compact add-on board that contains a stereo headphone amplifier. This board features the INA1620, a high-fidelity audio operational amplifier with integrated thin-film resistors and EMI filters from Texas Instruments. Over its dual amplifiers, it achieves a very low noise density and drives a 32Ω load at 150mW of output power.

headphoneamp3_click.png

Click Product page


Click library

  • Author : Stefan Ilic
  • Date : Apr 2023.
  • Type : GPIO type

Software Support

We provide a library for the Headphone AMP 3 Click as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Package can be downloaded/installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Library Description

This library contains API for Headphone AMP 3 Click driver.

Standard key functions :

  • headphoneamp3_cfg_setup Config Object Initialization function.

    void headphoneamp3_cfg_setup ( headphoneamp3_cfg_t *cfg );
  • headphoneamp3_init Initialization function.

    err_t headphoneamp3_init ( headphoneamp3_t *ctx, headphoneamp3_cfg_t *cfg );
  • headphoneamp3_default_cfg Click Default Configuration function.

    void headphoneamp3_default_cfg ( headphoneamp3_t *ctx );

Example key functions :

  • headphoneamp3_enable_power Headphone AMP 3 power pin setting function.

    void headphoneamp3_enable_power ( headphoneamp3_t *ctx, uint8_t state );
  • headphoneamp3_enable_amp Headphone AMP 3 amp pin setting function.

    void headphoneamp3_enable_amp ( headphoneamp3_t *ctx, uint8_t state );

Example Description

This library contains API for the Headphone AMP 3 Click driver. This demo application shows use of a Headphone AMP 3 Click board™.

The demo application is composed of two sections :

Application Init

Initialization of GPIO module and log UART. After driver initialization the app set default settings.


void application_init ( void ) 
{
    log_cfg_t log_cfg;  /**< Logger config object. */
    headphoneamp3_cfg_t headphoneamp3_cfg;  /**< Click config object. */

    /** 
     * Logger initialization.
     * Default baud rate: 115200
     * Default log level: LOG_LEVEL_DEBUG
     * @note If USB_UART_RX and USB_UART_TX 
     * are defined as HAL_PIN_NC, you will 
     * need to define them manually for log to work. 
     * See @b LOG_MAP_USB_UART macro definition for detailed explanation.
     */
    LOG_MAP_USB_UART( log_cfg );
    log_init( &logger, &log_cfg );
    log_info( &logger, " Application Init " );

    // Click initialization.
    headphoneamp3_cfg_setup( &headphoneamp3_cfg );
    HEADPHONEAMP3_MAP_MIKROBUS( headphoneamp3_cfg, MIKROBUS_1 );
    if ( DIGITAL_OUT_UNSUPPORTED_PIN == headphoneamp3_init( &headphoneamp3, &headphoneamp3_cfg ) ) 
    {
        log_error( &logger, " Communication init." );
        for ( ; ; );
    }

    headphoneamp3_default_cfg ( &headphoneamp3 );

    log_info( &logger, " Application Task " );
}

Application Task

This example demonstrates the use of the Headphone AMP 3 Click board™. The app is enabling and disabling headphone output by changing ENA pin state every 10 seconds.

void application_task ( void ) 
{
    log_printf( &logger, " Enabling headphone output \r\n" );
    headphoneamp3_enable_amp( &headphoneamp3, HEADPHONEAMP3_ENABLE );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );

    log_printf( &logger, " Disabling headphone output \r\n" );
    headphoneamp3_enable_amp( &headphoneamp3, HEADPHONEAMP3_DISABLE );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
    Delay_ms ( 1000 );
}

The full application code, and ready to use projects can be installed directly from NECTO Studio Package Manager(recommended way), downloaded from our LibStock™ or found on Mikroe github account.

Other Mikroe Libraries used in the example:

  • MikroSDK.Board
  • MikroSDK.Log
  • Click.HeadphomeAMP3

Additional notes and informations

Depending on the development board you are using, you may need USB UART Click, USB UART 2 Click or RS232 Click to connect to your PC, for development systems with no UART to USB interface available on the board. UART terminal is available in all MikroElektronika compilers.


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