作　　者： ; ; (孔令彬）; (易新建）;

机构地区： 华中科技大学光电子工程系

出　　处： 《华中科技大学学报（自然科学版）》 2003年第6期100-102,共3页

摘　　要： 提出了基于复杂可编程逻辑器件 (CPLD)及低压差 (LDO)线性稳压器实现 3 2 0× 2 40长波红外非致冷焦平面阵列 (UFPA)驱动电路优化设计的方法 .选用Altera公司的MAX70 0 0AE系列CPLD作为硬件设计平台 ,运用VHDL语言对驱动时序进行硬件描述 ;选用TI公司的LDO线性稳压器及 14bit视频A/D转换器THS14 0 8实现UFPA偏置电路及视频输出信号的模数转换电路的设计 .测量与仿真结果证明是可行的 . The design of the driving circuit of 320×240 long-w av e infrared uncooled focal plane arrays (UFPA) was introduced based on complex pr ogrammable logic device (CPLD) and low-dropout (LDO) voltage regulators. The CP LD was used as hardware design platform and VHDL was employed to describe the dr iving sequencer. LDO voltage regulator was adopted by this system to perform the bias of UFPA and 14 bit video A/D converter was used to convert the 5.5MHz anal og output of UFPA to digital signal. The simulation and the results of measureme nt demonstrate that this method is feasible.

关 键 词： 红外焦平面阵列 复杂可编程逻辑器件 驱动电路 低压差稳压器

领　　域： [电子电信]