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P1821 Datasheet (P1818 - P1822) Low Power Mobile VGA EMI Reduction IC

Manufacturer: Alliance Semiconductor

Download the P1821 datasheet PDF. This datasheet also includes the P1818 variant, as both parts are published together in a single manufacturer document.

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

Datasheet Details

Part number P1821
Manufacturer Alliance Semiconductor
File Size 86.42 KB
Description (P1818 - P1822) Low Power Mobile VGA EMI Reduction IC
Datasheet download datasheet P1821 Datasheet

General 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.

The P18xx-A to P18xx-H offer various combinations of spread options and percentage deviations (see Spread Deviation Selections).

Overview

www.DataSheet4U.com Production March 2003 ® P1818/19/20/21/22 Low Power Mobile VGA EMI Reduction.

Key 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.

More Datasheets from Alliance Semiconductor

Part Number Description
P1820 (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
P1819 (P1818 - P1822) Low Power Mobile VGA EMI Reduction IC