== Description ==
The AD724 is a complete RGB to S-Video / composite converter in a single ICconfigurable for both PAL and NTSC formats but not SECAM. It requires just a few external components to complete the system. It is only available in an SMD package. You can choose to make the entire PCB in SMD or use a mixture of SMD and standard parts for the external components. Unlike the MC1377 used in older Modulators, the AD724 requires just 5V, meaning it is ideally suited for installation in the CPC Plus range and Classic 464, both of which don't have an internal 12V source (required by the MC1377).The IC can be configured for several different input and output systems. The main configurations needed for the CPC with PAL output are as follows:
The composite output of the AD724 produces a 2.5V peak to peak signal for both PAL and NTSC. The S-Video Chrominance output is approximately 1.8V peak to peak and the Luminance is around 2V peak to peak. These values are all within the Composite / S-video standards and should be compatible with all TVs, Displays and further converters.
S-Video and composite signals contain only picture information, they do not contain any sound information, so don't expect the CPCs sound to come out of the TV.