BROADCHIP TECHNOLOGY GROUP Co., Ltd. (BROADCHIP TECHNOLOGY GROUP Co., Ltd.) is an integrated circuit design company established by a Chinese entrepreneurial team in Silicon Valley, USA. In 2007, it established a wholly-owned subsidiary in Shanghai: BroadChip Electronic Technology (Shanghai) Co., Ltd. The company's goal is to create a world-renowned enterprise with core competitiveness by introducing advanced integrated circuit design technology and innovative concepts from Silicon Valley, USA, combined with the use of a large number of outstanding scientific and engineering talents in China. BroadChip Electronics' main business will focus on the design, development and sales of high-performance, high-quality, low-power, and cost-effective analog and mixed integrated circuit chips. Its products will be widely used in computers, communications, automotive electronics, and popular civilian electronic products. The company focuses on the design, development and sales of high-performance, high-quality analog and mixed-signal integrated circuit chips and acceleration sensor chips. It adopts the internationally common model of fabless production design companies, outsourcing wafer processing and packaging testing, and focusing on product design, development and sales.
BCT2890 is an audio amplifier chip designed for portable audio devices with built-in speakers. The bridge-tied load (BTL) structure can reduce the number of external components of the chip while providing high-quality audio reproduction. When powered by a single 5V power supply, BCT2890 can provide continuous 1.8W power (4Ω load), or 1.2W (8Ω load), with harmonic distortion less than 1%. When powered by 2.6V power supply, the chip can provide 300mW continuous power (8Ω load). This chip can also be used as an adjustable gain amplifier.
The low power mode turns off the bias voltage and op amp, reducing the quiescent current consumption to less than 10nA. The internal integrated "click" noise suppression function can effectively reduce the audio "click" noise when the power is turned on or off. The BCT2890 pin is compatible with NCP2890/LM4890 and is packaged in 9-pin AQFN (1.6mm*1.6mm).
Parameters
- Single supply operating voltage: 2.2V to 5.5V
- When the load is 4Ω and the power is 1.8W, the harmonic distortion is 1%; when the load is 8Ω and the power is 1.2W, the harmonic distortion is 1%
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