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P2042AG-08TR

更新时间： 2024-02-08 21:25:14

品牌	Logo	应用领域
ALSC		时钟驱动器逻辑集成电路光电二极管
页数	文件大小	规格书
8页	352K
描述
LCD Panel EMI Reduction IC

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技术参数
数据手册

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P2042AG-08TR 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	TSSOP,	针数：	8
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.28	系列：	2042
输入调节：	STANDARD	JESD-30 代码：	R-PDSO-G8
长度：	4.4 mm	逻辑集成电路类型：	PLL BASED CLOCK DRIVER
功能数量：	1	反相输出次数：
端子数量：	8	实输出次数：	1
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	TSSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
座面最大高度：	1.1 mm	最大供电电压 (Vsup)：	3.6 V
最小供电电压 (Vsup)：	3 V	标称供电电压 (Vsup)：	3.3 V
表面贴装：	YES	技术：	CMOS
温度等级：	COMMERCIAL	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	3 mm
最小 fmax：	110 MHz

P2042AG-08TR 数据手册

August 2005

rev 1.3

P2042A

LCD Panel EMI Reduction IC

Features

wide reduction of EMI of down stream clock and data

dependent signals. The P2042A allows significant system

cost savings by reducing the number of circuit board

FCC approved method of EMI attenuation.

Provides up to 15dB of EMI suppression.

Generates a low EMI spread spectrum clock of the

input frequency.

layers ferrite beads,

shielding and other passive

components that are traditionally required to pass EMI

regulations.

Input frequency range: 30MHz to 110MHz.

Optimized for 32.5MHz, 54MHz, 65MHz and

108MHz pixel clock frequencies.

The P2042A uses the most efficient and optimized

modulation profile approved by the FCC and is

implemented in a proprietary all digital method.

Internal loop filter minimizes external components

and board space.

Eight selectable high spread ranges up to ± 1.9%.

SSON# control pin for spread spectrum enable and

disable options.

Low cycle-to-cycle jitter.

3.3V ± 0.3V operating range.

Low power CMOS design.

Supports most mobile graphic accelerator and LCD

timing controller specifications.

The P2042A 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’.

Available in 8-pin SOIC and TSSOP Packages.

Applications

Product Description

The P2042A is targeted towards digital flat panel

applications for notebook PCs, palm-size PCs, office

automation equipments and LCD monitors.

The P2042A is a versatile spread spectrum frequency

modulator designed specifically for digital flat panel

applications. The P2042A reduces electromagnetic

interference (EMI) at the clock source, allowing system

Block Diagram

VDD

SSON#

SR0 CP1 CP0

PLL

Modulation

CLKIN

Frequency

Divider

Output

Divider

Phase

Loop

Filter

VCO

Detector

Feedback

Divider

ModOUT

VSS

Alliance Semiconductor

2575 Augustine Drive • Santa Clara, CA • Tel: 408.855.4900 • Fax: 408.855.4999 • www.alsc.com

Notice: The information in this document is subject to change without notice.

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