微处理器控制器(mpumcu)设计 指纹传感器芯片fcd4b14 …（Microprocessor controller (mpumcu) Design fingerprint sensor chip fcd4b14...）.docVIP

微处理器控制器(mpumcu)设计 指纹传感器芯片fcd4b14 …（Microprocessor controller (mpumcu) Design fingerprint sensor chip fcd4b14...） I carefully collated documents, documents from the network I only collect and sort out In case of error Please check it yourself! Microprocessor / controller (MPU/MCU) design The principle and application of fingerprint sensor chip - FCD4B14 Abstract: fingerprint sensor chip FCD4B14 has 8x280=2240 pixels Pixel size 50 MX50 m=500dpi, pixel clock up to 2MHz 1780frame/s The structure, principle and application characteristics of the chip are introduced in this paper Keywords: fingerprint sensor; temperature physics effect; integrated circuit; FCD4B14 I. overview FCD4B14 is one of the FingerChipTM series fingerprint sensor chips manufactured by ATMEL CMOS process manufacturing No prism, light source, etc. FCD4B14 is a single chip, high performance, low price fingerprint sensor chip based on temperature physics effects The chip has a linear outline structure In order to capture fingerprints Allow fingers to glide over sensitive areas After capturing several fingerprint images The software provided by ATMEL can reconstruct these images into a complete 8Bit fingerprint image Chips are available per second, and the delivered fingerprint images are programmable The digital signals provided by the A/D converter are suitable for EPP parallel ports, USB microcontroller interfaces, or direct interface with microprocessors It can be easily applied in different identification systems FCD4B14 has the following characteristics: the sensitive layer is located on the 0.8 m COMS array; the image area is 0.4x14mm=0.02 x 0.55; the image array is 8x280=2240 pixels; the pixel size is 50 MX50 m=500 DPI; the pixel clock is as high as 2MHz 1780frame/s; work voltage 3V~5.5V; power consumption 20mW; 20 pin DIP ceramic or COB (Chip-on-Board) package; wear resistance 1x106 times sliding operation; ESD electrostatic protection 16kV; operating temperature range 0 degrees C~+70 degrees C