A Fully Integrated Filter Circuit for VCRs

In order to miniaturize VCRs, various components have been integrated with semiconductor circuits, but to date video filters such as luminance LPFs, emphasis filters, and chrominance BPFs have not been integrated. We have recently developed an integrated filter circuit for processing video signals. The new circuit was fabricated using a new bipolar process called the Hiplanar process and has been applied to a dynamic emphasis IC for VCRs. Because this filter circuit operates up to 10 MHz, any video filter can be integrated by the same means.