Unleash the power of superior audio with TS2007FC and STM32F407VGT6
Improve every note, enhance every beat
Published Dec 29, 2023
Click board™
AudioAMP 12 Click
Dev.Board
Clicker 4 for STM32F4
Compiler
NECTO Studio
MCU
STM32F407VGT6
Immerse yourself in a world of pristine sound – our amplifying solution, your passport to sonic excellence.
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Hardware Overview
How does it work?
AudioAMP 12 Click is based on the TS2007FC, a filter-free class-D audio amplifier from STMicroelectronics. The amplifier can work in differential configuration or single-ended input configuration. You can choose one over the INPUT SEL jumper, where the SE (single-ended) is set by default. The amplifier is a monolithic, fully differential input/output amplifier, which includes a common mode feedback loop that controls the output bias value to average it in correlation to the DC common mode input voltage range. This, in turn, allows the amplifier always to have a maximum output voltage swing and maximize the output power. Compared to the single-ended topology, the output is four times higher for
the same power supply voltages. The amplifier allows switching between two fixed gains: 6 or 12dB (2 or 4V/V gain). It also features thermal shutdown protection, output short-circuit protection, and a low pop-and-click noise, where the signal-to-noise ratio is typically 90dB. The pop-and-click reduction circuitry and low ON/OFF switching noise typically allow the amplifier to start within 1ms. You can also choose the Standby mode function, which keeps the current consumption down to 1μA. This Click board™ features a standard 3.5mm audio jack to connect the audio input. In addition to the audio jack, there is also an unpopulated 3-pin header if you want to connect the audio input by other means.
AudioAMP 12 Click allows connecting one speaker over the onboard terminal. This Click board™ uses general-purpose input/output pins to communicate with the host MCU. Using the GS pin, you can select one of the available gains with IOs logic states. The STB pin is a Standby pin with active LOW logic. This Click board™ can operate with either 3.3V or 5V logic voltage levels selected via the VCC SEL jumper. This way, both 3.3V and 5V capable MCUs can use the communication lines properly. Also, this Click board™ comes equipped with a library containing easy-to-use functions and an example code that can be used as a reference for further development.
Features overview
Development board
Clicker 4 for STM32F4 is a compact development board designed as a complete solution that you can use to quickly build your own gadgets with unique functionalities. Featuring an STM32F407VGT6 MCU, four mikroBUS™ sockets for Click boards™ connectivity, power management, and more, it represents a perfect solution for the rapid development of many different types of applications. At its core is an STM32F407VGT6 MCU, a powerful microcontroller by STMicroelectronics based on the high-performance
Arm® Cortex®-M4 32-bit processor core operating at up to 168 MHz frequency. It provides sufficient processing power for the most demanding tasks, allowing Clicker 4 to adapt to any specific application requirements. Besides two 1x20 pin headers, four improved mikroBUS™ sockets represent the most distinctive connectivity feature, allowing access to a huge base of Click boards™, growing on a daily basis. Each section of Clicker 4 is clearly marked, offering an intuitive and clean interface. This makes working with the
development board much simpler and, thus, faster. The usability of Clicker 4 doesn’t end with its ability to accelerate the prototyping and application development stages: it is designed as a complete solution that can be implemented directly into any project, with no additional hardware modifications required. Four mounting holes [4.2mm/0.165”] at all four corners allow simple installation by using mounting screws.
Microcontroller Overview
MCU Card / MCU
Architecture
ARM Cortex-M4
MCU Memory (KB)
10
Silicon Vendor
STMicroelectronics
Pin count
100
RAM (Bytes)
100
Used MCU Pins
mikroBUS™ mapper
Take a closer look
Schematic
Step by step
Project assembly
Start by selecting your development board and Click board™. Begin with the Clicker 4 for STM32F4 as your development board.
Track your results in real time
Application Output
After loading the code example, pressing the "DEBUG" button builds and programs it on the selected setup.
After programming is completed, a header with buttons for various actions available in the IDE appears. By clicking the green "PLAY "button, we start reading the results achieved with Click board™.
Upon completion of programming, the Application Output tab is automatically opened, where the achieved result can be read. In case of an inability to perform the Debug function, check if a proper connection between the MCU used by the setup and the CODEGRIP programmer has been established. A detailed explanation of the CODEGRIP-board connection can be found in the CODEGRIP User Manual. Please find it in the RESOURCES section.
Software Support
Library Description
This library contains API for AudioAMP 12 Click driver.
Key functions:
audioamp12_change_gain- AudioAMP 12 changes the gain function.audioamp12_gain_select- AudioAMP 12 select gain level function.audioamp12_set_mode_operation- AudioAMP 12 set operation mode function.
Open Source
Code example
This example can be found in NECTO Studio. Feel free to download the code, or you can copy the code below.
/*!
* @file main.c
* @brief AudioAMP 12 Click Example.
*
* # Description
* This example demonstrates the use of AudioAMP 12 Click board™.
* The library contains an API for switching between two gain settings
* and device control selection between operation and standby mode.
*
* The demo application is composed of two sections :
*
* ## Application Init
* Initialization of GPIO module and log UART. After driver initialization,
* the app sets default settings performs a power-up sequence, and sets the sound volume to 6 dB.
*
* ## Application Task
* The app performs circles the volume switch between two gain settings,
* 6 dB or 12 dB, every 5 seconds.
* Results are being sent to the UART Terminal, where you can track their changes.
*
* @author Nenad Filipovic
*
*/
#include "board.h"
#include "log.h"
#include "audioamp12.h"
static audioamp12_t audioamp12; /**< AudioAMP 12 Click driver object. */
static log_t logger; /**< Logger object. */
void application_init ( void )
{
log_cfg_t log_cfg; /**< Logger config object. */
audioamp12_cfg_t audioamp12_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.
audioamp12_cfg_setup( &audioamp12_cfg );
AUDIOAMP12_MAP_MIKROBUS( audioamp12_cfg, MIKROBUS_1 );
if ( DIGITAL_OUT_UNSUPPORTED_PIN == audioamp12_init( &audioamp12, &audioamp12_cfg ) )
{
log_error( &logger, " Communication init." );
for ( ; ; );
}
audioamp12_default_cfg ( &audioamp12 );
log_info( &logger, " Application Task " );
}
void application_task ( void )
{
audioamp12_gain_select( &audioamp12, AUDIOAMP12_GAIN_6_DB );
log_printf( &logger, " Gain set to 6 dB.\r\n" );
Delay_ms( 5000 );
audioamp12_gain_select( &audioamp12, AUDIOAMP12_GAIN_12_DB );
log_printf( &logger, " Gain set to 12 dB.\r\n" );
Delay_ms( 5000 );
}
void main ( void )
{
application_init( );
for ( ; ; )
{
application_task( );
}
}
// ------------------------------------------------------------------------ END
