Data Sheet DDC001 Datasheet Download Resource The file you are trying to access requires you to be logged in as a registered user. Registration is free, sign up today. Username Enter your Curtiss-Wright Defense Solutions username. Password Enter the password that accompanies your username. Forgot password? Don’t have an account? Register here. The DDC001 is a Wideband Digital Down Converter (DDC) providing similar functionality to the GC1012B from TI and supports output bandwidth of Fs/4 to Fs/128 with a complex output and Fs/2 to Fs/64 with real output.