Datasheet > P1727B-08TT

P1727B-08TT

更新时间： 2024-09-19 15:47:15

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
6页	47K
描述
PLL Based Clock Driver, 1 True Output(s), 0 Inverted Output(s), CMOS, PDSO8, TSSOP-8

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P1727B-08TT 数据手册

Preliminary Specification

P1727/66

Low Power Notebook LCD Panel EMI Reduction IC

FEATURES

•

Low inherent cycle-to-cycle jitter

3.3V operating voltage

•

FCC approved method of EMI attenuation

Generates a low EMI spread spectrum of

the input clock frequency

CMOS/TTL compatible inputs and outputs

Ultra low power CMOS design

TBD mA @3.3V, 54 MHz

TBD mA @3.3V, 65 MHz

•

Optimized for frequency range:

P1727X: 20MHz to 40MHz

P1766X: 40MHz to 80MHz

•

Supports notebook VGA and other LCD

timing controller applications

•

Internal loop filter minimizes external

components and board space

•

Available in 8 pin SOIC and TSSOP

8 different frequency deviations ranging

Qualified for Industrial Temp Spec. (+85C)

from +/-0.625% to –3.50%

The P1727/66 uses the most efficient and

optimized modulation profile approved by the

FCC and is implemented by using a proprietary

all-digital method.

PRODUCT DESCRIPTION

The P1727/66 is a versatile spread spectrum

frequency modulator designed specifically for a

wide range of clock frequencies. The P1727/66

reduces electromagnetic interference (EMI) at

the clock source, allowing system wide

reduction of EMI of down stream (clock and

data dependent signals). The P1727/66 allows

significant system cost savings by reducing the

number of circuit board layers and shielding that

are traditionally required to pass EMI

regulations.

APPLICATIONS

The P1727/66 is targeted towards notebook

LCD displays, other displays using an LVDS

interface, PC peripheral devices, and embedded

systems.

Figure 1 – P1727/66 Pin Diagram

The P1727/66 modulates the output of a single

PLL in order to “spread” the bandwidth of a

synthesized clock, thereby decreasing 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 clock generators. Lowering

EMI by increasing a signal’s bandwidth is called

“spread spectrum clock generation”.

CLKIN

VDD

PD#

P1727X

P1766X

VSS

ModOUT

REF

Oct., 2002

Revision B

3160 De La Cruz Blvd., Suite 200 • Santa Clara • CA • 95054

Tel (408) 748-6988 • Fax (408) 748-0009

1of 6

http://www.pulsecore.com

12 3 4 5 6

中文翻译

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与P1727B-08TT相关器件

型号	品牌	获取价格	描述	数据表
P1727BG-08SR	PULSECORE	获取价格	Low Power Notebook LCD Panel EMI Reduction IC
P1727BG-08-SR	PULSECORE	获取价格	PLL Based Clock Driver, 1727 Series, 1 True Output(s), 0 Inverted Output(s), CMOS, PDSO8,
P1727BG-08-SR	ONSEMI	获取价格	1727 SERIES, PLL BASED CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8, 0.150
P1727BG-08ST	PULSECORE	获取价格	Low Power Notebook LCD Panel EMI Reduction IC
P1727BG-08-ST	ONSEMI	获取价格	1727 SERIES, PLL BASED CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8, 0.150
P1727BG-08TR	PULSECORE	获取价格	Low Power Notebook LCD Panel EMI Reduction IC
P1727BG-08-TR	PULSECORE	获取价格	PLL Based Clock Driver, 1727 Series, 1 True Output(s), 0 Inverted Output(s), CMOS, PDSO8,
P1727BG-08-TR	ONSEMI	获取价格	1727 SERIES, PLL BASED CLOCK DRIVER, 1 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PDSO8, 4.40 M
P1727BG-08TT	PULSECORE	获取价格	Low Power Notebook LCD Panel EMI Reduction IC
P1727BG-08-TT	PULSECORE	获取价格	PLL Based Clock Driver, 1727 Series, 1 True Output(s), 0 Inverted Output(s), CMOS, PDSO8,

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