Detailed explanation of WiFi module applicable to set-top box

Reference scheme for WiFi module selection

1. Product application scenarios and functions to be realized;

2. Understand the interfaces (master-slave devices, functions, special interfaces) that can be provided to realize the required functions in WiFi scheme design;

3. Consider the power supply, size, power consumption, communication frequency band, transmission rate, transmission distance, etc. of WiFi module;

4. Cost performance and its particularity.

WiFi module belongs to the transport layer of Internet of things. WiFi module is an embedded module based on WiFi wireless network standard, with built-in wireless network protocol IEEE802.11 protocol stack and TCP / IP protocol stack. Because its transmission rate is fast enough to meet the rate requirements of most peripherals, it is widely used in wireless connection related fields.

This tl8723dsa WiFi module is based on Ruiyu chip rtl8723ds. It provides SDIO interface for WiFi to connect to the host processor and high-speed UART interface for BT. It also has a PCM interface for audio data transmission and is directly connected to the external audio codec through the BT controller. Using 1x1 802.11nb/g/nmimo technology, the WiFi throughput can reach 150Mbps, and Bluetooth supports bt2.1 + EDR / bt3.0 and bt4.2.

This WiFi module adopts a highly integrated WiFi / BT single chip microcomputer with advanced COMS technology. Tl8723dsa integrates the whole WiFi / BT function block into one chip, such as SDIO / UART, MAC, BB, AFE, RFE, PA, EEPROM and LDO / SWR, but less passive components are reserved on the PCB. This compact module is the overall solution of Wi Fi + Bt technology combination. This module is specially developed for smart phones and portable devices.

Commax-Tech Electronic Co., Ltd      Electronic component specialist

B23, second floor, ASEAN building, Longhua District, Shenzhen

sales@commax-tech.com

https://commax-tech.com

Keyword：WiFi module   Internet of things   communication band   Bluetooth   SDIO / UART   MAC   BB   AFE   RFE   PA   EEPROM   LDO / SWR   Commax-Tech Electronic