EL4501_10 Datasheet, PDF (1/19 Pages) Intersil Corporation – Video Front End (VFE)

®
Data Sheet
November 12, 2010
EL4501
FN7327.3
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 75Ω double
terminated coaxial cable, the amplifier can drive to within
150mV of either rail. With 200V/µs 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.
Ordering Information
PART
NUMBER
PART TAPE &
PKG.
MARKING REEL PACKAGE DWG. #
EL4501IU
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 MDP0040
(Pb-free)
EL4501IUZ-T7 EL4501IUZ 7” 24 Ld QSOP MDP0040
(See Note)
(Pb-free)
EL4501IUZ-T13 EL4501IUZ 13” 24 Ld QSOP MDP0040
(See 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
• 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°, R_L = 10kΩ, A_V = 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
VFB 1
VIDEO IN 2
DS MODE 3
DS ENABLE 4
GND 5
GNDD 6
RFREQ 7
FSEL 8
SYNC IN 9
LOS 10
COMPOSITE 11
HORIZONTAL 12
24 VIDEO OUT
23 DS OUT
22 DS REF
21 REF IN
20 REF OUT
19 VS
18 VSD
17 SYNC AMP
16 SLICE MODE
15 BACK PORCH
14 ODD/EVEN
13 VERTICAL
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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