器件名称: I2040AF-08-ST
功能描述: LCD Panel EMI Reduction IC
文件大小: 356.56KB 共9页
简 介:November 2006 rev 1.3 LCD Panel EMI Reduction IC
Features
FCC approved method of EMI attenuation. Provides up to 20dB of EMI suppression. Generates a low EMI spread spectrum clock of the input frequency. Input frequency range: 30MHz to 100MHz. 3.3v Operating Voltage Optimized Internal for loop VGA, filter SVGA, and higher external resolution XGA LCD Panels. minimizes
P2040A
modulator designed specifically for digital flat panel applications. The P2040A reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. The P2040A allows significant system cost savings by reducing the number of circuit board layers ferrite beads, regulations. The P2040A uses the most efficient and optimized modulation profile approved by the FCC and is implemented in a proprietary all digital method. The P2040A modulates the output of a single PLL in order to “spread” the bandwidth of a synthesized clock, and more importantly, decreases the peak amplitudes of its harmonics. This results in significantly lower system EMI compared to the typical narrow band signal graphic accelerator produced by oscillators and most frequency generators. Lowering EMI by increasing a signal’s bandwidth is called ‘spread spectrum clock generation’. shielding and other passive components that are traditionally required to pass EMI
components and board space. Six selectable high spread ranges up to ± 2%. Two selectab……
