1
FN7327.3
EL4501
Video Front End
The EL4501 is a highly-integrated Video Front End (VFE)
incorporating all of the key signal conditioning functions for
analog video signals. It provides a flexible front-end interface
for analog or analog/digital video sub-systems. The VFE
contains a high bandwidth DC-restore, an advanced sync
separator and a data slicer with an adjustable threshold,
configurable output and power-down mode.
The VFE performs restoration of the DC level (blanking
level) of a video signal and the recovery of all signal timing
necessary for synchronization and control. Additionally, data
embedded in the active video or VBI regions of the video
signal may be extracted using the flexible data slicer
incorporated into the VFE. The advanced sync separator
exhibits excellent noise immunity by incorporating a digital
brick wall filter and signal qualification algorithm. The
DC-restored video amplifier is unity gain stable with an
unloaded -3dB bandwidth of 100MHz. The input common
mode voltage range extends from the negative rail to within
1.5V of the positive rail. When driving a 75
Ω double
terminated coaxial cable, the amplifier can drive to within
150mV of either rail. With 200V/s slew rate, the amplifier is
well suited for composite and component video applications.
The VFE operates from a single 5V supply from -40°C to
+85°C and is available in a reduced footprint 24 Ld QSOP
package.
Features
DC-restore and sync separator
Wideband (100MHz) DC-restore
Advanced sync separator
Programmable data slicer
Single 5V operation
Diff gain/phase = 0.05%/0.03°, RL = 10kΩ, AV = 1
Low power (<75mW)
Pb-free plus anneal available (RoHS compliant)
Applications
Video capture & editing
Video projectors
Set top boxes
Security video
Embedded data recovery
Pinout
EL4501
(24 LD QSOP)
TOP VIEW
Ordering Information
PART
NUMBER
PART
MARKING
TAPE &
REEL
PACKAGE
PKG.
DWG. #
EL4501IU
-
24 Ld QSOP MDP0040
EL4501IU-T7
EL4501IU
7”
24 Ld QSOP MDP0040
EL4501IU-T13
EL4501IU
13”
24 Ld QSOP MDP0040
EL4501IUZ
(See Note)
EL4501IUZ
-
24 Ld QSOP
(Pb-free)
MDP0040
EL4501IUZ-T7
(See Note)
EL4501IUZ
7”
24 Ld QSOP
(Pb-free)
MDP0040
EL4501IUZ-T13
(See Note)
EL4501IUZ
13”
24 Ld QSOP
(Pb-free)
MDP0040
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.
1
2
3
4
16
15
14
13
5
6
7
12
11
9
8
10
20
19
18
17
24
23
22
21
VFB
VIDEO IN
DS MODE
DS ENABLE
GND
GNDD
RFREQ
FSEL
SYNC IN
LOS
COMPOSITE
HORIZONTAL
VIDEO OUT
DS OUT
DS REF
REF IN
REF OUT
VS
VSD
SYNC AMP
SLICE MODE
BACK PORCH
ODD/EVEN
VERTICAL
Data Sheet
November 12, 2010
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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