纹传感器芯片FCD4B14具有8´ 280=2240象素，象素尺寸50 µ m´ 50 µ m=500dpi；象素时钟高...

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纹传感器芯片FCD4B14具有8´ 280=2240象素，象素尺寸50 µ m´ 50 µ m=500dpi；象素时钟高达2MHz，1780frame/s。本文介绍了该芯片的结构、原理及应用特性。-Pattern sensor chip FCD4B14 with 8 280 = 2240 pixels, pixel size of 50 μm 50 μm = 500dpi pixel clock up to 2MHz, 1780frame/s. This article describes the structure of the chip, principle and application features.