LC7471

The LC7471 is designed as one kind of picture-in-picture (PIP) system controller ICs for use in NTSC, PAL or multi-system (both NTSC and PAL) TVs and VCRs. This device requires discrete LC7480 A/D converter and memory ICs. And this device provides nested-picture main-screen / sub-screen video signal control. Single or multiple (2) sub-screens occupying 11.11% (one-third height, one-third width) of the main-screen can be constructed and controlled.

Features of the LC7471 are:(1)NTSC, PAL and multi-system compatibility;(2)TV and VCR signals;(3)forms component-based PIP controller system;(4)one or two (nested) sub-screens occupying 11.11% of main-screen;(5)still and active video display control;(6)white and colored screen frames;(7)fixed and variable screen positioning;(8)gradual sub-screen display and erasure (wipe) function;(9)A/D interface, vertical (VERT) filter, memory controller.

The absolute maximum ratings of the LC7471 can be summarized as:(1)supply voltage range: -0.3 to 7.0 V;(2)input voltage range: -0.3 to VDD+0.3 V;(3)output voltage range: -0.3 to VDD+0.3 V;(4)allowable power dissipation: 500 mW;(5)operating temperature range: -10 to +70 ;(6)storage temperature range: -55 to +125 . If you want to know more information such as the electrical characteristics about the LC7471, please download the datasheet in www.seekic.com or www.chinaicmart.com .