headphoneamp3  2.1.0.0
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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.

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 :

Example key functions :

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;
headphoneamp3_cfg_t headphoneamp3_cfg;
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" );
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" );
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.


HEADPHONEAMP3_MAP_MIKROBUS
#define HEADPHONEAMP3_MAP_MIKROBUS(cfg, mikrobus)
MikroBUS pin mapping.
Definition: headphoneamp3.h:86
HEADPHONEAMP3_DISABLE
#define HEADPHONEAMP3_DISABLE
Definition: headphoneamp3.h:68
application_task
void application_task(void)
Definition: main.c:62
HEADPHONEAMP3_ENABLE
#define HEADPHONEAMP3_ENABLE
Headphone AMP 3 description setting.
Definition: headphoneamp3.h:67
headphoneamp3_cfg_t
Headphone AMP 3 Click configuration object.
Definition: headphoneamp3.h:109
headphoneamp3_enable_amp
void headphoneamp3_enable_amp(headphoneamp3_t *ctx, uint8_t state)
Headphone AMP 3 amp pin setting function.
headphoneamp3_enable_power
void headphoneamp3_enable_power(headphoneamp3_t *ctx, uint8_t state)
Headphone AMP 3 power pin setting function.
headphoneamp3_t
Headphone AMP 3 Click context object.
Definition: headphoneamp3.h:98
headphoneamp3_init
err_t headphoneamp3_init(headphoneamp3_t *ctx, headphoneamp3_cfg_t *cfg)
Headphone AMP 3 initialization function.
application_init
void application_init(void)
Definition: main.c:30
headphoneamp3_cfg_setup
void headphoneamp3_cfg_setup(headphoneamp3_cfg_t *cfg)
Headphone AMP 3 configuration object setup function.
headphoneamp3_default_cfg
void headphoneamp3_default_cfg(headphoneamp3_t *ctx)
Headphone AMP 3 default configuration function.