RTL8711DCM and SOC Amplifier Integrated Design Guide¶

Overview¶

This document provides detailed information about the RTL8711DCM WiFi module and SOC amplifier integrated design solution, including audio transmit end (TX) and audio receive end (RX) hardware interface design, power management, audio interface configuration and amplifier control key technical points.

1. Audio Transmit End (TX) Design Solution¶

1.1 TX System Architecture Overview¶

1.2 Power Management System¶

RTL8711DCM audio transmit end adopts multi-level power management solution to ensure stable system operation.

1.2.1 DC-DC Power Configuration¶

1.3 I2S-TDM Audio Input Interface¶

RTL8711DCM transmit end I2S-TDM interface configuration, supporting high-quality audio transmission.

1.3.1 I2S Interface Pin Definition¶

1.4 UART Communication Interface¶

1.4.1 Debug UART¶

1.4.2 MCU Communication UART¶

2. Audio Receive End (RX) Design Solution¶

2.1 RX System Architecture Overview¶

2.2 Power System Configuration¶

RTL8711DCM audio receive end power system design, supporting speaker amplifier applications.

2.2.1 Power Configuration Solution¶

2.3 User Control Interface¶

RTL8711DCM receive end provides button and LED indicator interfaces for user interaction and status indication.

2.3.1 User Interaction Interface Definition¶

2.4 Amplifier Drive Control System¶

RTL8711DCM integrates ACM8625P amplifier chip control interface to achieve high-quality audio output.

2.4.1 I2C Control Interface¶

2.4.2 I2S Audio Data Interface¶

2.4.3 Amplifier Control Signals¶