Detailed Working Principle of the AP6275S Module
Module Overview
The AP6275S is a dual-band WiFi 6 + Bluetooth 5.0 wireless module launched by AMPAK Technology, utilizing the BCM4375 chip solution. It supports IEEE 802.11a/b/g/n/ac/ax standards and can achieve a transmission rate of up to 1200Mbps under the 802.11ax protocol through dual streams.
Core Working Principle
WiFi Communication Principle
The AP6275S employs 2×2 MIMO (Multiple Input Multiple Output) technology to achieve dual-stream data transmission through spatial multiplexing. The module supports OFDMA (Orthogonal Frequency Division Multiple Access) encoding technology, which can serve multiple devices simultaneously, significantly improving network capacity and efficiency.
Key Technical Features:
Dual-band operation: Supports 2.4GHz and 5GHz frequency bands
1024 QAM modulation: Enhances spectral efficiency
LDPC coding: Improves coverage and power efficiency
MU-MIMO: Multi-User Multiple Input Multiple Output technology
Bluetooth Communication Principle
The module supports Bluetooth 5.0 standard and has the following features:
HCI UART interface: Up to 4Mbps transmission rate
PCM interface: For audio data transmission
Adaptive frequency hopping: Reduces RF interference
Extended synchronous connection: Improves voice quality
Interface Architecture
SDIO Interface
The AP6275S uses the SDIO 3.0 interface for WiFi communication, backward compatible with SDIO v2.0 host interfaces. The SDIO interface not only supports high-speed data transmission but also enables seamless connection with host devices, simplifying circuit design.
UART/PCM Interface
UART interface: For Bluetooth host control interface (HCI)
PCM interface: For Bluetooth audio data transmission
Antenna Design
The module features a dual-antenna design, with Bluetooth and WiFi sharing one antenna. This design reduces interference and enhances the stability of the wireless network. It also supports versions with independent antenna configurations (e.g., AP6275SR3), providing more options for different application scenarios.
Power Management
The AP6275S employs advanced power management technology:
Operating voltage: 3.3V
Supply current: 800mA
Power consumption optimization: Supports low-power mode to extend device battery life
Application Scenarios
This module is specifically developed for the following devices:
Tablets: Providing high-speed wireless connectivity
OTT boxes: Supporting high-definition video streaming
Portable devices: Low-power design suitable for mobile applications
Smart home devices: Stable wireless communication capabilities
Technical Advantages
High performance: Supports WiFi 6 standard, providing high-speed data transmission
High integration: Integrates WiFi chip, RF circuits, baseband processing units, and other key modules
Good compatibility: Supports various communication protocols and interfaces, compatible with various embedded systems
Low-power design: Automatically enters low-power mode during standby to extend battery life
The AP6275S module provides a complete and efficient solution for modern wireless communication devices through its advanced technical features and optimized hardware design.
AP6275S DOME Test Development Board:
