1

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FN7019

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

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EL1882C

Sync Separator w/50% Slice, AGC

The EL1882C video sync separator is

manufactured using Elantec's high

performance analog CMOS process.

This device extracts sync timing information from both

standard and non-standard video input. It provides

composite sync, vertical sync, burst/back porch timing and

odd/even field detection. 50% sync tip slicing provides

precise sync edge detection when the video input level is

572mV). A single external resistor sets all internal timing to

adjust for various video standards. The composite sync

output follows video in sync pulses, and a vertical sync

pulse is output on the rising edge of the first vertical serration

following the vertical pre-equalizing string. For non-standard

vertical inputs, a default vertical pulse is output when the

vertical signal stays low for longer than the vertical sync

default delay time. The odd/even output indicates field

polarity detected during the vertical blanking interval. The

EL1882C is plug-in compatible with the industry standard

LM1881 and can be substituted for that part in 5V

applications with improved 50% slicing and lower required

supply current.

Features

• NTSC, PAL, SECAM, non-standard video sync separation

• Low supply current - 1.5mA typ.

• Single +5V supply

• Composite, vertical sync output

• Odd/Even field output

• Burst/Back porch output

• Plug-in compatible with industry standard LM1881 in 5V

applications

• Available in 8-pin DIP and SO package

Applications

• Video special effects

• Video test equipment

• Video distribution

• Displays

•Imaging

• Video data capture

• Video triggers

Demo Board

A dedicated demo board is not available. However, this

device can be placed on the EL4584/5 demo board.

Pinout

EL1882C

(8-PIN PDIP, SO)

TOP VIEW

Ordering Information

PART NO.

TEMP. RANGE

PACKAGE

PKG. NO.

EL1882CN

-40°C to +85°C

8-pin DIP

MDP0031

EL1882CS

-40°C to +85°C

8-lead SO

MDP0027

COMPOSITE SYNC OUT

COMPOSITE VIDEO IN

VERTICAL SYNC OUT

GND

ODD/EVEN OUTPUT

BURST/BACK

PORCH OUTPUT

1

2

3

4

8

7

6

5

Data Sheet

January 1996, Rev A