红外焦平面技术目前已经进入第三代。读出电路作为焦平面的重要组成部分, 为了使它达到理想的工作状态, 需要提供时钟驱动脉冲和偏置电压。设计了一种基于atmel89s51单片机设计的红外焦平面线列的时钟驱动电路。此电路灵活性强, 具有很强的驱动能力, 驱动电流在输出高低电平时分别为4 mA和28 mA, 实现了128×1红外焦平面阵列的驱动。而且电路通过程序上简单地修改, 调节时钟脉冲频率、积分时间和读出时间等参数, 拓展到256×1红外焦平面阵列的脉冲驱动。

The infrared focal plane arrays (IRFPAs) technology has been driven to the third generation. Readout integrated circuit (ROIC) is an important subassembly of focal plane arrays. To reach the ideal working state, ROIC needs to be supplied with clock drive impulse and setup voltage. IRFPAs driving circuit using atme189s51 singlechip has been designed, which has facility performance, powerful drive ability. While the out-put voltages are high and low, the output driving currents are 4 mA and 28 mA separately. It can be used to drive 128×1 IRFPAs. Via brief modification in program, driving circuit can adjust clock drive impulse frequency、integration time and readout time etc, which can be used to drive 256×1 IRFPAs.