Carrying out low power consumption to the end, Dialog brings more possibilities to IoT connection

From the first-generation 802.11 standard published by IEEE in 1997 to the popularization of the fifth-generation Wi-Fi 802.11 ac (Wi-Fi5), and then to the emergence of 802.11ax (Wi-Fi6), the connection performance of Wi-Fi has been continuously upgraded, and it has become popular among people. The most extensive connection method in life. With the growth of the IoT market, especially in the field of smart home applications, Bluetooth and ZigBee have become the most adopted connection methods due to their low power consumption. Highly integrated battery management, AC/DC power conversion, Wi-Fi, Bluetooth Low Energy (BLE) and industrial IC supplier Dialog semiconductor has also launched a variety of BLE SoCs for the consumer field in recent years, and it is widely used all over the world. It has been widely adopted by the major manufacturers of , such as the BLE chip in the Xiaomi Mi Band.

Wi-Fi cannot completely cover all applications. The fundamental reason lies in the most fatal weakness of Wi-Fi itself – the problem of power consumption. Dialog’s low-power SoC strategy has expanded to the Wi-Fi camp this time, and recently announced the official launch of the highly integrated, ultra-low-power Wi-Fi network SoC chip DA16200 chip, as well as the DA16200 module and DA16600 (Wi-Fi + BLE two All-in-one) module, which is expected to completely overcome the power consumption problem of Wi-Fi connection and provide breakthrough battery life for Wi-Fi-connected, battery-powered IoT devices.

Carrying out low power consumption to the end, Dialog brings more possibilities to IoT connection

Overcoming Wi-Fi Power Weaknesses

“When Wi-Fi first appeared, many application products were not powered by batteries. But now many connected products use batteries, and the era of true wireless has come. Under such circumstances, the previous Wi-Fi -Fi is wireless networking, but for networking, there is also a power cord, just like a tail, which is not truly wireless. In addition, it is difficult to pull the cord in in some places, and batteries have to be used. At this time, it is also possible to use Wi-Fi Difficulty.” Cui Nanxiu, product marketing director of Dialog Semiconductor’s Connectivity and Audio Business Unit, analyzed: “This product now uses other technical solutions such as ZigBee or Bluetooth, but these solutions cannot be directly connected to the Internet. The main gateway is AP (Wireless Access Point). ), if you want to connect to the Internet, you must add other devices such as gateways, which will increase the cost.”

Cui Nanxiu believes that the launch of Dialog DA16200 chip can solve the fundamental weakness of Wi-Fi connection and meet the low power consumption requirements of typical applications such as smart door locks, cameras, thermostats and temperature and humidity sensors.

Wi-Fi security surveillance cameras, whose large-capacity data transmission requires broadband networking tools, the best is Wi-Fi. According to Cui Nanxiu, after testing, the 4000 mAh battery can last for more than a year with 10 MB of HD video and 5 uses a day.

Before smart door locks, the gateway on BLE+AP or ZigBee+ gateway was usually used. In the case of using Wi-Fi products, the home AP can be used directly when the smart door lock is connected to the Internet. Tests show that 4 AA dry batteries can be used for more than 1 year when switched on and off 20 times a day.

In terms of thermostat, the power consumption of DA16200 can be close to that of Bluetooth, and it can guarantee more than 3 years of battery life when used 30 times per day.

In terms of temperature/humidity sensor applications, when using 1440 times per day, that is, collecting once per minute, using two AAA dry batteries of No. 7 can achieve a battery life of more than 4 years.

In terms of smart watches and wristbands, today’s functions are becoming more and more complex, and the data to be processed is also increasing, and system upgrades are essential. Using Bluetooth requires more time for data transmission and system upgrades, and low-power Wi-Fi chips are more suitable. At present, Dialog is already developing related products with some customers.

Low power consumption without sacrificing performance

The DA16200 is specially developed by Dialog for battery-powered products. The ultra-low power consumption is due to its latest patented technology, VirtualZero. “VirtualZero means that the power consumption is almost 0 when the network is maintained. Of course, it is not absolutely 0, but the power consumption is very low when the network is maintained.” Cui Nanxiu introduced, “Keeping the network means that you can always Control it, transfer the data it collects, and let it do some other work.”

In Sleep Mode 3, the DA16200 also maintains a network connection, loads network certificates and keeps the network online.

If you sacrifice some functions or specifications of Wi-Fi to achieve ultra-low power consumption, it is not really ultra-low power consumption. Cui Nanxiu introduced: “DA16200 is a fully integrated Wi-Fi SoC chip, including CPU and SRAM, which fully meets the entire specification of Wi-Fi, including radio frequency sensitivity, transmission distance, etc., even with the general Wi-Fi on the market. In comparison, our sensitivity and transmission distance are more advantageous. At the same time, we can also achieve ultra-low power consumption that other chips cannot.”

The highly integrated DA16200 autonomously runs the entire Wi-Fi system, security and networking stack without the need for an external network processor, CPU or microcontroller. It contains an 802.11b/g/n radio (PHY), baseband processor, MAC, on-chip memory, dedicated cryptographic engine and ARM® Cortex®-M4F host network application processor, all integrated on a single silicon chip.

For wider coverage without sacrificing battery life, the DA16200 also integrates a Power Amplifier (PA) and Low Noise Amplifier (LNA), providing users with industry-leading output power and receiver sensitivity.

also,DA16200Compliant with WPA/2/3 personal and enterprise encryption standards, with TLS and HTTPs upper layer security. Cui Nanxiu introduced: “The security of Wi-Fi itself is very high compared to other solutions, and the DA16200 chip also includes an encryption module. Therefore, it can achieve secure startup, secure debugging, and secure storage.”

Two modules for different needs

Considering that many customers in the market need module products for the convenience of production, Dialog has also launched two module products based on DA16200: DA16200 module and DA16600 module. In addition to the DA16200 chip, it also integrates memory, RF devices, crystal oscillators, filters, antennas, etc., which can be used directly. Both modules are fully certified for worldwide use including FCC, IC, CE, Telec, Korea and SRRC. In addition, the SoC chip and both modules are Wi-Fi CERTIFIED® certified for interconnectivity.

DA16600 is a Wi-Fi + BLE combination module, which is a “two-in-one module” that combines the DA16200 chip and the low-power Bluetooth chip DA14531. Cui Nanxiu said that the module of DA16200 is a simple ultra-low power Wi-Fi module with low cost, while the cost of DA16600 is high. If the user’s design can be completed through Wi-Fi alone, then DA16200 can be used; if there is no cost issue , DA16600 provides users with more choices, allowing users to use more convenient.

The combination of Wi-Fi and BLE actually has some technical thresholds, which is equivalent to the coexistence of two RFs. The power consumption of Wi-Fi is particularly large, and the noise it brings will also have a great impact on the BLE signal. Cui Nanxiu said that Dialog has very professional technical capabilities and has realized the coexistence of Wi-Fi and BLE. At present, a complete set of software and hardware solutions have been made, which can make it more convenient and simpler for customers to use.

At present, NB-IoT, ZigBee, Bluetooth, Wi-Fi, and even the rapidly developing 5G, these connection technologies will naturally find their place in IoT applications. Cost-effectiveness and functionality are important considerations. In addition, infrastructure is also a big challenge for applications, and Wi-Fi is widely covered, and implementing the Internet of Things in life through Wi-Fi is a convenient and cost-effective solution. In the past, the disadvantage that limited the further expansion of its application field is that the power consumption is too high, and now Dialog’s newly launched DA16200 chip can overcome the Achilles’ heel of Wi-Fi, and the natural prospect of Wi-Fi on IoT in the future can be expected, which is exactly what Dialog developed The original intention of ultra-low-power Wi-Fi SoCs.

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