Design of Digital Key Mixer Based on MCU and FPGA
Ding Jianguo · Control & Automation · 2010
Generally speaking, Broadcast system needs to increase a bit few special effects, such as superimposed radio station logo and digital clock, and the rolled bottom line of advertisement when it is live.For traditional broadcast applications, the way is to connect the equipments in series.when the number of the equipments increase, this way will result in a corresponding increase in the complexity of devices connecting lines, and in a lower security and reliability of the broadcasting system.Application of Digital key Mixer as the center of the parallel approach ,can improve system reliability and security,at the same time simplify the circuit connection.This design will apply MCU (Micro Controller Unit), as well as FPGA (Large Scale Integrated Circuit) as core, and design Digital key Mixer (Digital Key Mixer).