The popularity of gateways is the key to implementing Bluetooth intelligent peripherals. In the new smart phones and tablets, the configuration rate of Bluetooth smart chips is close to 100%. At present, Bluetooth smart is expanding to notebook computers, smart TVs and other products. According to IHS forecasts, by the end of 2016, the planned shipments of Bluetooth Smart ICs will exceed 350 million.
Introduced by Dialog Semiconductor, the Dialog DA14580 is the first Bluetooth smart solution to break the 4mA wireless transceiver current limit, providing the longest battery runtime. At the same time, the highly integrated DA14580 also has the lowest system cost and is the smallest Bluetooth Smart SoC in the industry.
a feature-rich solution
As the first member of the Dialog Smart Bond family, the DA14580 is a complete hardware and software solution that enables electronics engineers to easily add Bluetooth intelligence to smart device peripherals. Its powerful 32-bit ARM Cortex-M0 microcontroller and corresponding memory enable a fully embedded and fully managed solution. The Bluetooth 4.0 PHY and link layer provide a 93dB RF link budget to ensure reliable transmission. At the same time, the AES-128 hardware encryption engine ensures secure data transfer. In addition, each analog integrated module ensures a wide operating voltage range and reduces the number of external components, while various digital interfaces can connect a large number of sensors.
The unique architectural advantages of the DA14580 are mainly reflected in: First, low power consumption, DA14580 wireless transceiver current consumption is only 3.8mA, 50% lower than other Bluetooth smart solutions on the market, and its deep sleep mode current is less than 600nA. This means that in a product that sends 20 bytes per second, a 225mAh coin cell battery can keep it running for 4 years and 5 months; compared to previous generations of Bluetooth smart technology can only last for two years. . Second, high integration and low system cost. With its single-pin antenna interface and analog integrated module, the DA14580 minimizes the number of external components. In addition, because a smaller battery can be used, it minimizes the total BOM (bill of materials), enabling the development of low-cost but feature-rich systems. Third, the small size, highly integrated DA14580 is available in three sizes, with the smallest wafer-level chip scale package (WL-CSP) of only 2.5mm & TImes; 2.5mm & TImes; 0.5mm, and its package size is 50% smaller than the competition. This ultra-small size allows designers to use Bluetooth technology in the most space-constrained wireless accessories.
DA14580 architecture analysis
The DA14580 is a complete Bluetooth 4.0 SoC with a 32-bit ARM Cortex-M0 core and a one-time programmable (OTP) on-chip flash and 32 GPIOs that provide extreme design flexibility without the need for an external processor And can reduce costs.
The DA14580 has a power management block with built-in PMU, DC/DC and LDO, which reduces the need for external components and total bill of materials. By precisely turning the power to each chip on and off, Dialog can minimize power consumption. It is still running when the operating voltage of SmartBond is reduced to 0.9V, enabling the operation of a computer or smart TV peripheral using an alkaline or nickel-manganese battery. Previously, the competitor's solution required two batteries. This opens the door to numerous new design ideas for designers, enabling them to develop ultra-compact and small-sized products while reducing the total cost of the system. Energy harvesting technologies, such as collected light or kinetic energy, can also be used to charge rechargeable batteries that support system operation. The DA14580 also produces a powerful 93dB RF signal with high immunity to interference.
The DA14580 is equipped with a complete Dialog Smart Snippets Bluetooth software platform (pictured) that includes a certified Bluetooth smart single-mode on-chip protocol stack. The DA14580 comes standard with a range of Bluetooth Smart Profiles for consumer health, sports, fitness, security and proximity applications. In addition, users can easily customize and add their own profiles as needed. The Smart Snippets software development environment is based on Keil's μVision proven tool and includes sample application code for embedded and hosted modes to help engineers get started with development projects.
In addition, Dialog provides a complete hardware development kit to help with application development and testing. Depending on the DA14580 package, the development kit's motherboard can be used with one of several daughter boards.
Engineers can also use a dedicated circuit and tool to describe and fine tune the power consumption of the application to take full advantage of the DA14580.
Application field
The DA14580 is designed to wirelessly connect a keyboard, mouse or remote control to a tablet, laptop or smart TV, enabling consumers to use innovative applications on smartphones and tablets with watches. Establish a connection with a wristband or smart tag to achieve “self-monitoring†of health and physical conditions, looking for lost keys and other functions.
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