Datasheet > EL4581

EL4581

更新时间： 2024-11-06 22:49:11

品牌	Logo	应用领域
英特矽尔 - INTERSIL		/
页数	文件大小	规格书
9页	109K
描述
Sync Separator, 50% Slice, S-H, Filter

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EL4581 数据手册

EL4581

Data Sheet

August 16, 2002

FN7172

Sync Separator, 50% Slice, S-H, Filter

Features

The EL4581 extracts timing informa-

tion from standard negative going

video sync found in NTSC, PAL, and

• NTSC, PAL and SECAM sync separation

• Single supply, +5V

• Precision 50% slicing, internal caps

• Built-in color burst filter

SECAM broadcast systems. It can also be used in non stan-

dard formats and with computer graphics systems at higher

scan rates, by adjusting a single external resistor. When the

input does not have correct serration pulses in the vertical

interval, a default vertical output is produced.

• Decodes non-standard verticals

• Pin compatible with LM1881

• Low power

Outputs are composite sync, vertical sync, burst/back porch

output, and odd/even output. The later operates only in inter-

laced scan formats.

• Typically 1.5mA supply current

• Resistor programmable scan rate

• Few external components

The EL4581 provides a reliable method of determining cor-

rect sync slide level by setting it to the mid-point between

sync tip and blanking level at the back porch. This 50% level

is determined by two internal self timing sample and hold cir-

cuits that track sync tip and back porch levels. This also

provides a degree of hum and noise rejection to the input sig-

• Available in 8-pin PDIP and SO packages

Applications

• Video special effects

• Video test equipment

• Video distribution

• Displays

nal, and compensates for varying input levels of 0.5

P-P

2.0V

P-P

A built in linear phase, third order, low pass filter attenuates

the chroma signal in color systems to prevent incorrectly set

color burst from disturbing the 50% sync slide.

• Imaging

This device may be used to replace the industry standard

LM1881, offering improved performance and reduced power

consumption.

• Video data capture

• Video triggers

The EL4581 video sync separator is manufactured using

Elantec’s high performance analog CMOS process.

Ordering Information

PART

NUMBER

TEMP.

RANGE

Pinout

EL4581

PACKAGE

8-Pin PDIP

8-Pin SO

PKG. NO.

MDP0031

MDP0027

(8-Pin SO, DIP)

TOP VIEW

EL4581CN

EL4581CS

-40°C to +85°C

COMPOSITE

SYNC OUT

VDD 5V

Demo Board

A dedicated demo board is not available. However, this

device can be placed on the EL4584/5 Demo Board.

COMPOSITE

VIDEO IN

ODD/EVEN OUTPUT

RSET

VERTICAL

SYNC OUT

BURST/BACK

PORCH OUTPUT

GND

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners. Manufactured under U.S. Patent 5,528,303. Manufactured under License, U.S. Patents 5,486,869; 5,754,250.

12 3 4 5 6 7...9

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与EL4581相关器件

型号	品牌	获取价格	描述	数据表
EL4581_08	INTERSIL	获取价格	Sync Separator, 50% Slice, S-H, Filter
EL4581_10	INTERSIL	获取价格	Sync Separator, 50% Slice, S-H, Filter
EL4581C	ELANTEC	获取价格	Sync Separator, 50% Slice, S-H, Filter
EL4581CN	ELANTEC	获取价格	Sync Separator, 50% Slice, S-H, Filter
EL4581CN	INTERSIL	获取价格	Sync Separator, 50% Slice, S-H, Filter
EL4581CS	ELANTEC	获取价格	Sync Separator, 50% Slice, S-H, Filter
EL4581CS	INTERSIL	获取价格	Sync Separator, 50% Slice, S-H, Filter
EL4581CS-T13	ELANTEC	获取价格	Sync Separator IC, PDSO8, SO-8
EL4581CSZ	INTERSIL	获取价格	Sync Separator, 50% Slice, S-H, Filter
EL4583	ELANTEC	获取价格	Sync Separator, 50% Slice, S-H, Filter, HOUT

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