QPC7337PCBA Evaluation Board Qorvo QPC7337PCBA Evaluation Board is a demonstration and development platform for the QPC7337 Voltage Variable Equalizer. The QPC7337 is optimized for DOCSIS 4.0 ESD Downstream path applications between 284MHz and 1794MHz. The QPC7337 features a 17dB slope range, low insertion loss, high linearity, and 75Ω impedance for CATV applications. The device operates from a 5V single power supply voltage and a low 3mA supply current.