3 Megapixel Camera Signal Processor for Mobile Camera Applications

This paper describes a low power and high performance camera signal processor system on chip (SoC) architecture for mobile applications such as the mobile phone, the personal digital assistant (PDA), and the personal multimedia player (PMP). In this work, the presented SoC architecture of the camera signal processor (CSP) provides not only image signal processing functions but also various actuator interfaces. Additionally, we propose an adaptive data synchronization method using the glitch-free clock switching technique. The area of this chip 2.8times2.7 mm and it was fabricated with the 0.18-mum CMOS process. This device packaged with Flash memory in a multi-chip package (MCP) technology and dissipates 76 mW at 1.8 V/50 MHz.