The company's subsidiary, World Peace, launched a mobile phone fingerprint identification solution based on Fingerprints FPC1080A, implemented on the Rockchip or Spreadtrum platform, and a high-fidelity sound solution based on NXP TFA98XX.
The Fingerprints FPC1080A is one of the smallest, most energy-efficient, and most popular sliding sensors in the industry, offering leading 508 dpi image resolution. The chip's reliability and ease of integration make it an ideal sensor for mass-market devices such as mobile phones, notebooks, smart cards and USB keys. FPC1080A also integrates finger browsing hardware support to replace the joystick or other similar browsing system support.
NXP's TFA98XX is one of the industry's smallest smart amplifiers. It is mainly used in smartphone audio systems with high sound requirements, advanced algorithms, and special optimization for micro-speakers. The entire system is integrated on a single chip, including CoolFuxDSP, high efficiency Class D amplifier with current sensing, and DC-DC converter.
First, based on Fingerprints FPC1080A fingerprint identification scheme
Figure 1 - System architecture diagram of mobile phone fingerprint identification solution implemented by Ruilian Micro or Spreadtrum platform based on Fingerprints FPC1080A
The fingerprint identification solution of Dalian University is adopting the sliding or pressing fingerprint identification method, and adopts the SPI communication protocol to support the Android platform. Its antistatic can reach positive and negative 15kV, working environment temperature is -20 °C ~ +60 °C, image acquisition power consumption is less than 1.2mA @1.8V, service life wear 10 million times, can achieve high quality real-time three-dimensional image.
Figure 2 - Photo of Fingerprints FPC1080A module of the company
Figure 3 - Photo of Fingerprints FPC1080A of the United Nations General Assembly's agent on the Rocket Micro PX2 platform
Second, NXP TFA98XX Smart Audio smart amplifier solution
Figure 4 - System architecture diagram of mobile phone high-fidelity sound solution based on NXP TFA98XX
The mobile phone high-fidelity audio solution of Datong University is also providing an intelligent audio system evaluation board, which can control the TFA98XX through the I2C interface, and realize adaptive f0 offset control while ensuring high-fidelity D-class audio output. To protect the speakers.
Figure 5 - The photo of the high-fidelity sound solution evaluation version of the NXP TFA9897 based on NTU
TFA9897
• Integrated speaker protection, cavity detection, sound enhancement, power and battery management features • Single-chip solution for maximum ease of design • Support for TDM I2S audio interface • Speaker amplitude, temperature sensing, built-in EQ debugging
Figure 6 - The photo of the NXP TFA9890-based mobile phone high-fidelity sound solution evaluation version
TFA9890
• 9.5V output, *6~8+ dB loudness, Class D audio amplifier • Integrated speaker protection, cavity detection, temperature detection, sound enhancement, battery protection • Support for I2S audio input
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