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P1820 - (P1818 - P1822) Low Power Mobile VGA EMI Reduction IC

Download the P1820 datasheet PDF. This datasheet also covers the P1818 variant, as both devices belong to the same (p1818 - p1822) low power mobile vga emi reduction ic family and are provided as variant models within a single manufacturer datasheet.

Description

The P18xx is a versatile spread spectrum frequency modulator designed specifically for a wide range of input clock frequencies from 10 to 160 MHz (see Input Frequency and Modulation Rate Selections).

The P18xx can generate an EMI reduced clock from crystal, ceramic resonator, or system clock.

Features

  • FCC approved method of EMI attenuation Provides up to 15 dB EMI reduction Generates a low EMI spread spectrum clock and a non-spread reference clock of the input frequency Optimized for frequency range from 10 MHz to 160 MHz P1818: 10 to 20 MHz P1819: 20 to 40 MHz P1820: 40 to 80 MHz P1821: 10 to 40 MHz P1822: 80 to 160 MHz Internal loop filter minimizes external components and board space.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (P1818_AllianceSemiconductor.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number P1820
Manufacturer Alliance Semiconductor
File Size 86.42 KB
Description (P1818 - P1822) Low Power Mobile VGA EMI Reduction IC
Datasheet download datasheet P1820 Datasheet

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Other Datasheets by Alliance Semiconductor

Part Number Description
P1821 (P1818 - P1822) Low Power Mobile VGA EMI Reduction IC
P1822 (P1818 - P1822) Low Power Mobile VGA EMI Reduction IC
P1817A Low-Power Mobile VGA EMI Reduction IC
P1817B Low-Power Mobile VGA EMI Reduction IC
P1818 (P1818 - P1822) Low Power Mobile VGA EMI Reduction IC

Full PDF Text Transcription

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www.DataSheet4U.com Production March 2003 ® P1818/19/20/21/22 Low Power Mobile VGA EMI Reduction IC Features • • • • FCC approved method of EMI attenuation Provides up to 15 dB EMI reduction Generates a low EMI spread spectrum clock and a non-spread reference clock of the input frequency Optimized for frequency range from 10 MHz to 160 MHz P1818: 10 to 20 MHz P1819: 20 to 40 MHz P1820: 40 to 80 MHz P1821: 10 to 40 MHz P1822: 80 to 160 MHz Internal loop filter minimizes external components and board space • • • • • • • • • • Selectable spread options: Down Spread and Center Spread Low inherent cycle-to-cycle jitter Eight spread % selections: +/-0.625% to –3.5% 3.
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