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ASM3P2182AG.08TT Datasheet(PDF) 1 Page - ON Semiconductor |
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ASM3P2182AG.08TT Datasheet(HTML) 1 Page - ON Semiconductor |
1 / 6 page © Semiconductor Components Industries, LLC, 2011 August, 2011 − Rev. P3 1 Publication Order Number: ASM3P2182A/D ASM3P2182A Product Preview LCD Panel EMI Reduction IC Description The ASM3P2182A is a versatile spread spectrum frequency modulator designed specifically for a wide range of input clock frequencies from 25 MHz to 210 MHz. (Refer to Input Frequency and Modulation Rate Table). The ASM3P2182A can generate an EMI reduced clock from an OSC or a system generated clock. The ASM3P2182A offers a Center Spread clock and with a percentage deviation from ± 0.13% or ± 1.24%. The ASM3P2182A reduces electromagnetic interference (EMI) at the clock source, allowing system wide reduction of EMI of down stream clock and data dependent signals. The ASM3P2182A allows significant system cost savings by reducing the number of circuit board layers ferrite beads, shielding and other passive components that are traditionally required to pass EMI regulations. The ASM3P2182A uses the most efficient and optimized modulation profile approved by the FCC and is implemented in a proprietary all digital method. The ASM3P2182A 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 produced by oscillators and most frequency generators. Lowering EMI by increasing a signal’s bandwidth is called ‘spread spectrum clock generation.’ Applications The ASM3P2182A is targeted towards EMI management for memory and LVDS interfaces in mobile graphic chipsets and high−speed digital applications such as PC peripheral devices, consumer electronics, and embedded controller systems. Features • FCC Approved Method of EMI Attenuation • Provides up to 15 dB EMI Reduction • Generates a 1X Low EMI Spread Spectrum Clock of the Input Frequency • Input Frequency Range: 25 MHz to 210 MHz • Internal Loop Filter Minimizes External Components and Board Space • Center Spread • 4 Spread Frequency Deviation Selections: ± 0.13% to ± 1.24% • Low Inherent Cycle−to−Cycle Jitter • 3.3 V Operating Voltage • TTL or CMOS Compatible Inputs and Outputs • Low Power CMOS Design • Supports Notebook VGA and Other LCD Timing Controller Applications • Products are Available for Industrial Temperature Range • Available in 8−pin SOIC and TSSOP Packages • These are Pb−Free Devices This document contains information on a product under development. ON Semiconductor reserves the right to change or discontinue this product without notice. http://onsemi.com SOIC−8 S SUFFIX CASE 751BD PIN CONFIGURATION (Top View) See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. ORDERING INFORMATION FS1 FS0 VDD ModOUT GND S1 CLKIN 1 S0 TSSOP−8 T SUFFIX CASE 948AL |
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