Replacing Error Vector Magnitude Test with RF and Analog BISTs

摘要

RF and analog BIST techniques are capable of replacing the traditional error vector magnitude (EVM) test used in production. In a case study, four BISTs detected actual production faults in a commercial, highly integrated WLAN device. In combination with traditional digital testing, the BISTs caught an impressive 100% of EVM failures during production of over a million devices, which presents significant opportunities for both cost and time savings.