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General Description The EL4585C is a PLL (Phase Lock Loop) sub system, designed for video applications, but also suitable for general purpose use up to 36 MHz. In a video application this device generates a TTL/CMOS compatible Pixel Clock (Clk Out) which is a multiple of the TV Horizontal scan rate, and phase locked to it. Features • 36 MHz, general purpose PLL • 8 FSC timing. (Use the EL4584 for 4 FSC) • Compatible with EL4583C Sync Separator • VCXO, Xtal, or LC tank oscillator • k2nS jitter (VCXO) • User-controlled PLL capture and lock • Compatible with NTSC and PAL TV formats • 8 pre-programmed popular TV scan rate clock divisors • Single 5V, low current operation Applications • Pixel Clock regeneration • Video compression engine (MPEG) clock generator • Video Capture or digitization • PIP (Picture In Picture) timing generator • Text or Graphics overlay timing
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