The Study of VCO Automatic Test System Base on GPIB Bus

With the rapid development of 3G communications, RF circuits are becoming more widespread, so the electronic components VCO’s applications grows ever wider, because it is the core module in the oscillator circuit. A voltage-controlled oscillator automatic test system based on GPIB bus is introduced. This system and computer combination has changed the traditional manual operation, VCO production efficiency has been greatly improved; many parameters can be measured easily, the testing accuracy and reliability are all high, the investment is lower and intelligent function is stronger.