EL4583_06 Datasheet, PDF (1/10 Pages) Intersil Corporation – Sync Separator, 50% Slice, S-H, Filter, HOUT

®
Data Sheet
May 5, 2006
EL4583
FN7173.2
Sync Separator, 50% Slice, S-H, Filter,
H_OUT
The EL4583 extracts timing from video sync in NTSC, PAL,
and SECAM systems, and non standard formats, or from
computer graphics operating at higher scan rates. Timing
adjustment is via an external resistor. Input without valid
vertical interval (no serration pulses) produces a default
vertical output.
Outputs are: composite sync, vertical sync, filter, burst/back
porch, horizontal, no signal detect, level, and odd/even
output (in interlaced scan formats only).
The EL4583 sync slice level is set to the mid-point between
sync tip and the blanking level. This 50% point is determined
by two internal sample and hold circuits that track sync tip
and back porch levels. It provides hum and noise rejection
and compensates for input levels of 0.5V to 2.0V_P-P.
A built in filter attenuates the chroma signal to prevent color
burst from disturbing the 50% sync slice. Cut off frequency is
set by a resistor to ground from the Filter Cut Off pin.
Additionally, the filter can be by-passed and video signal fed
directly to the Video Input.
The level output pin provides a signal with twice the sync
amplitude which may be used to control an external AGC
function. A TTL/CMOS compatible No Signal Detect Output
flags a loss or reduction in input signal level. A resistor sets
the Set Detect Level.
The EL4583 is manufactured using Intersil’s high
performance analog CMOS process.
Ordering Information
PART TAPE &
PART NUMBER MARKING REEL
PACKAGE
PKG.
DWG. #
EL4583CN
EL4583CN
- 16 Ld PDIP
MDP0031
EL4583CS
EL4583CS
- 16 Ld SO (0.150”) MDP0027
EL4583CS-T7 EL4583CS 7” 16 Ld SO (0.150”) MDP0027
EL4583CS-T13 EL4583CS 13” 16 Ld SO (0.150”) MDP0027
EL4583CSZ
(Note)
EL4583CSZ - 16 Ld SO (0.150”) MDP0027
(Pb-free)
EL4583CSZ-T7 EL4583CSZ 7” 16 Ld SO (0.150”) MDP0027
(Note)
(Pb-free)
EL4583CSZ-T13 EL4583CSZ 13” 16 Ld SO (0.150”) MDP0027
(Note)
(Pb-free)
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
Features
• NTSC, PAL, and SECAM sync separation
• Single supply, +5V operation
• Precision 50% slicing
• Built-in programmable color burst filter
• Decodes non-standard vertical
• Horizontal sync output
• Sync. pulse amplitude output
• Same socket can be used for 8 Ld EL4581
• Low-power CMOS
• Detects loss of signal
• Resistor programmable scan rate
• Few external components
• Available in 16 Ld PDIP and 16 Ld SO (0.150”) packages
• Pb-free plus anneal available (RoHS compliant)
Applications
• Video special effects
• Video test equipment
• Video distribution
• Multimedia
• Displays
• Imaging
• Video data capture
• Video triggers
Pinout
EL4583
(16 LD SO, PDIP)
TOP VIEW
FILTER CUT OFF 1
16 ANALOG GND
SET DETECT LEVEL 2
15 HORIZONTAL SYNC OUT
COMPOSITE SYNC OUT 3
14 VDD
FILTER INPUT 4
13 ODD/EVEN OUTPUT
VERTICAL SYNC OUT 5
12 RSET*
DIGITAL GND 6
11 BURST/BACK PORCH OUTPUT
FILTER OUTPUT 7
10 NO SIGNAL DETECT OUTPUT
COMPOSITE VIDEO INPUT 8
9 LEVEL OUTPUT
*NOTE: R_SET must be a 1% register
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002, 2003, 2005, 2006. All Rights Reserved
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.