Datasheet > A2040C-08SR

A2040C-08SR

更新时间： 2024-10-29 19:22:03

品牌	Logo	应用领域
ALSC		驱动光电二极管逻辑集成电路
页数	文件大小	规格书
9页	492K
描述
PLL Based Clock Driver, 1 True Output(s), 0 Inverted Output(s), CMOS, PDSO8, SOIC-8

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A2040C-08SR 数据手册

December 2003

rev 1.0

P2040C

LCD Panel EMI Reduction IC

Product Description

Features

FCC approved method of EMI attenuation.

The P2040C is a selectable spread spectrum frequency

modulator designed specifically for digital flat panel

applications. The P2040C reduces electromagnetic

interference (EMI) at the clock source which provides

system wide reduction of EMI of all clock dependent

signals. The P2040C allows significant system cost

savings by reducing the number of circuit board layers

and shielding that are traditionally required to pass EMI

regulations.

Provides up to 15 dB of EMI suppression

Generates a low EMI spread spectrum clock of the

input frequency

50 MHz to 170 MHz input frequency range

Optimized for 54MHz, 65MHz, 81MHz, 140MHz,

and 162MHz pixel clock frequencies

Internal loop filter minimizes external components

and board space

8 selectable spread ranges, up to +/- 2.2%

SSON# control pin for spread spectrum enable

and disable options

The P2040C uses the most efficient and optimized

modulation profile approved by the FCC and is

implemented in a proprietary all-digital method.

2 selectable modulation rates

Low cycle-to-cycle jitter

3.3V operating voltage

16 mA output drives

TTL or CMOS compatible outputs

Ultra low power CMOS design

Supports most mobile graphic accelerator and

LCD timing controller specifications

Available in 8 pin SOIC and TSSOP

The P2040C 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 P2040C is targeted towards digital flat panel

applications for Notebook PCs, Palm-size PCs,

Office Automation Equipments, and LCD Monitors.

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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与A2040C-08SR相关器件

型号	品牌	获取价格	描述	数据表
A2040C-08ST	ALSC	获取价格	PLL Based Clock Driver, 1 True Output(s), 0 Inverted Output(s), CMOS, PDSO8, SOIC-8
A2040C-08TR	ALSC	获取价格	PLL Based Clock Driver, 1 True Output(s), 0 Inverted Output(s), CMOS, PDSO8, TSSOP-8
A2040C-08TT	ALSC	获取价格	PLL Based Clock Driver, 1 True Output(s), 0 Inverted Output(s), CMOS, PDSO8, TSSOP-8
A204-1	AMPHENOL	获取价格	Circular Connector, 3 Contact(s), Aluminum Alloy, Male, Receptacle,
A204102	COOPER	获取价格	30A, BARRIER STRIP TERMINAL BLOCK, 1 ROW, 1 DECK
A20410200A1	EATON	获取价格	Single Row Terminal Blocks
A20410200A9	EATON	获取价格	Single Row Terminal Blocks
A20410200AB	EATON	获取价格	Single Row Terminal Blocks
A20410200B1	EATON	获取价格	Single Row Terminal Blocks
A20410203A1	EATON	获取价格	Single Row Terminal Blocks

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