EL1882C
®
Data Sheet
January 1996, Rev A
FN7019
Sync Separator w/50% Slice, AGC
Features
The EL1882C video sync separator is
• NTSC, PAL, SECAM, non-standard video sync separation
manufactured using Elantec's high
performance analog CMOS process.
• Precision 50% slicing of video input levels from 0.5V to
2V
P-P
P-P
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
• Low supply current - 1.5mA typ.
• Single +5V supply
• Composite, vertical sync output
• Odd/Even field output
between 0.5V
and 2V (sync tip amplitude 143mV to
P-P
P-P
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.
• 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
Ordering Information
• Video data capture
• Video triggers
PART NO.
EL1882CN
EL1882CS
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
PACKAGE
8-pin DIP
8-lead SO
PKG. NO.
MDP0031
MDP0027
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
V
5V
COMPOSITE SYNC OUT
COMPOSITE VIDEO IN
1
2
3
4
8
7
6
5
DD
ODD/EVEN OUTPUT
R
VERTICAL SYNC OUT
GND
SET
BURST/BACK
PORCH OUTPUT
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.
1
Copyright © Intersil Americas Inc. 2002. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
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