With the continuous development of technologies in the audio field and the ever-increasing pursuit of audio effects by end-users, AWINIC has launched the new-generation Digital Smart K intelligent digital audio power amplifier - AW88271CSR, aiming to bring users an ultimate audio experience. This product boasts three core advantages: ultra-low power consumption, ultra-small package, and full support for various types of silicon anode batteries.
Picture 1 Package of AW88271CSR
AW88271CSR is an intelligent digital audio power amplifier supporting I²S/TDM interfaces, with a maximum power of up to 5.4W@8Ω. The chip is built with a high-precision IV feedback circuit, which can real-time monitor the working status of the loaded loudspeaker and provide protection. With a UVL of 1.7V, it is fully compatible with various silicon anode battery applications, effectively extending the battery life of devices.
In terms of package design, the chip achieves miniaturization iteration and innovatively adopts a 0.35mm pin pitch, which significantly reduces the chip size and greatly lowers the PCB board occupation area. Meanwhile, it is equipped with LPC and Adaptive Multi-Driving technologies, which not only improves the small-signal efficiency by more than 10% but also significantly reduces the noise and power consumption of the power amplifier.
Picture 2 Typical Application Block Diagram
1 Full Compatibility with Silicon Anode Batteries
With the gradual popularization of silicon anode batteries, the device shutdown voltage has been continuously decreasing — from the original 3.4V to the current 2.8V, and is expected to drop to 2.3V in the future. This trend puts forward stronger and more stringent requirements for the low-voltage operating performance of chips.
Awinic AW88271, with an industry-leading ultra-low under-voltage lockout value of 1.7V, can be fully compatible with various silicon anode batteries and perfectly meet the above-mentioned low-voltage operating requirements.
Picture 3: Evolution of Battery Shutdown Voltage
2 Industry's Ultra-Small Package for Mobile Phone Power Amplifiers
AW88271CSR innovatively adopts a 0.35mm pin pitch design, further reducing the chip size, with a single chip measuring only 1.84mm × 1.84mm. Compared with its predecessor AW88261FOR, its chip area has been reduced by 46%.
Picture 4: Change in chip area compared with the previous generation
Continuous Upgrade of Low-Power Consumption Technology
The AW88271CSR innovatively combines low-power consumption technology with LPC technology to form a "combined punch" effect. This can significantly improve operational efficiency in various application scenarios, effectively reduce the overall power consumption of the device, and bring users longer device standby time.
New Low-Power Technology
The AW88271CSR adopts the new low-power technology, which can improve efficiency in different volume scenarios: the efficiency is increased by more than 10% in small and medium - signal scenarios, and by about 5% in high - volume scenarios, effectively reducing the chip power consumption. The specific power consumption benefits under different volumes are shown in the following table.
Table 1 Power Consumption Benefits at Different Volumes
LPC Technology
When the LPC function is enabled, it can effectively reduce the noise and power consumption of the power amplifier. This mode brings significant benefits in terms of quiescent power consumption control and background noise optimization. Compared with the previous generation of products, the relevant performance has been significantly improved.
Table 2 Performance Benefit Comparison with the Previous Generation
As a new member of the next-generation Digital Smart K series, the AW88271CSR can be widely applied to various electronic devices such as smartphones, tablets, personal computers, and industrial internet devices. With three core advantages – low power consumption, small package, and full compatibility with various silicon anode batteries – this chip continues to bring users a better audio experience. Awinic will also always be committed to creating higher-quality technological experiences for global consumers.
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About Awinic
Leading Chinese Digital-Analog (IC) Company
Shanghai Awinic Electronic Technology Co., Ltd. was founded in 2008, focusing on the design of high-performance digital-analog mixed-signal, power management, signal chain and other ICs. In August 2021, it successfully listed on the Science and Technology Innovation Board of the Shanghai Stock Exchange, with the stock code 688798.
Awinic Electronics has accumulated 42 product subcategories and more than 1,400 product models in total. The performance and quality of its products have reached the leading level in the industry. The company's products are widely used in consumer electronics, industrial internet and automotive markets, including smartphones, tablets, laptops, smart wearables, smart speakers, smart home appliances, mobile payments, the Internet of Things, AI education, smart toys, servers, new energy, robots, drones, security, automotive electronics and other fields.
In 2024, the company's R&D investment reached 510 million yuan, accounting for nearly 17% of its revenue. Technical personnel accounted for more than 74% of the total staff. It has accumulated 649 domestic and foreign patents, 125 software copyrights, and 595 integrated circuit layout registrations.
Awnic Electronics has been awarded various qualifications and honors, such as the National Enterprise Technology Center, the Single Champion Enterprise in the audio manufacturing industry, the National Intellectual Property Advantage Enterprise, "National High-tech Zone Listed Companies Innovation Top 100", Shanghai Innovative Enterprise Headquarters, Shanghai Quality Gold Award, Shanghai Municipal Design Innovation Center, Shanghai Intelligent Audio Chip Technology Innovation Center, and Shanghai Hardcore Technology Enterprise TOP 100 list.
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