一种新型老炼信号驱动板的设计研究

Research on the Design of A New Type of Burn-in Signal Driving Board

老炼试验中,存在大量的各类型芯片。在试验过程中需要一路甚至是多路控制信号,这些控制信号波形简单,且频率基本在25 MHz以内。但是由于老炼试验批量性的特点,现有设备很难满足对信号源驱动能力、输出通道数的需求。目前市面上常见的信号源通常只有两通道输出,且每路输出信号的驱动能力无法保证在老炼试验中电路的批量性工作需求,信号质量衰减严重。为解决上述问题,设计了一种可以多通道并行,具有一定的驱动能力,并且可以适当进行占空比和幅值调整的信号驱动板。

In the burn-in test,there are a large number of various types of chips.One or multiple control signals are needed in the test process.These control signals have simple waveforms and the frequency is basically within 25 MHz.However,due to the characteristics of batch of the burn-in test,the existing equipment is difficult to meet the needs of signal source driving capacity and output channel number.At present,the common signal source on the market usually has only two channels of output,and the driving capacity of each output signal cannot guarantee the batch work demand of the circuit in burn-in test,and the signal quality and amplitude attenuation are serious.To solve the above problems,a kind of signal generator is introduced,which can be multi-channel parallel,has certain driving ability,and can adjust the signal duty ratio and amplitude appropriately according to the actual demand of burn-in test.