Datenblatt-pdf.com


EL4501 Schematic ( PDF Datasheet ) - Intersil Corporation

Teilenummer EL4501
Beschreibung Video Front End
Hersteller Intersil Corporation
Logo Intersil Corporation Logo 




Gesamt 19 Seiten
EL4501 Datasheet, Funktion
®
Data Sheet
April 28, 2006
EL4501
FN7327.2
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°, 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
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.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2003-2004, 2006. All Rights Reserved. All other trademarks mentioned are the property of their respective owners.
Manufactured under License, U.S. Patents 5,486,869; 5,754,250






EL4501 Datasheet, Funktion
Typical Performance Curves (Continued)
EL4501
10K
1K
100
10
10 100 1K 10K 100K 1M 10M 100M
FREQUENCY (Hz)
FIGURE 11. VOLTAGE NOISE vs FREQUENCY - VIDEO AMP
0.08
0.04
RF=0Ω
AV=1
0
-0.04
-0.08
RL=150Ω
RL=10kΩ
-0.12
0.5 1 1.5 2 2.5 3 3.5
VOUT (V)
FIGURE 13. DIFFERENTIAL PHASE FOR RL TIED TO 0V
0.15
0.05
RL=10kΩ
-0.05
-0.15
-0.25
-0.35
0.5
RL=150Ω
1 1.5 2 2.5
VOUT (V)
RF=1kΩ
AV=2
3 3.5
FIGURE 15. DIFFERENTIAL PHASE FOR RL TIED TO 0V
0.25
0.2
0.15
0.1
RL=150Ω
0.05
0
-0.05
-0.1
0.5
RL=10kΩ
1 1.5 2 2.5
VOUT (V)
RF=0Ω
AV=1
3 3.5
FIGURE 12. DIFFERENTIAL GAIN FOR RL TIED TO 0V
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
0.5
RF=1kΩ
AV=2
RL=150Ω
RL=10kΩ
1 1.5 2 2.5 3 3.5
VOUT (V)
FIGURE 14. DIFFERENTIAL GAIN FOR RL TIED TO 0V
1600
1200
AV=2
RF=1kΩ
RL=150Ω
VIN=1V STEP
VREF_IN=13.V
800
400
0
0 100 200 300 400 500
HOLD CAPACITANCE (pF)
FIGURE 16. ACQUISITION TIME vs HOLD CAPACITANCE
6

6 Page









EL4501 pdf, datenblatt
EL4501
Pin Descriptions
PIN
NUMBER
1
PIN NAME
VFB
PIN TYPE
PIN DESCRIPTION
Input
Connection for gain and feedback resistors, RF and
RG
EQUIVALENT CIRCUIT
VS
2
VIDEO IN
Input Input to DC-restore amplifier; input coupling capacitor
connects from here to video source
GND
CIRCUIT 1
VS
3
DS MODE
Input Sets the mode of the DS comparator; logic low selects
a standard logic output; logic high selects an open
drain/collector
GND
CIRCUIT 2
VS
4
DS ENABLE
Input Enables the output of the comparator; a logic high
enables the comparator; a logic low three-states it
GND
CIRCUIT 3
VS
5
GND
Input Analog ground
6
GNDD
Input Digital ground
7
RFREQ
Input Connection for bias resistor that sets the overall timing
GND
CIRCUIT 4
VS
GND
CIRCUIT 5
12

12 Page





SeitenGesamt 19 Seiten
PDF Download[ EL4501 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
EL4501Video Front EndIntersil Corporation
Intersil Corporation
EL4501CVideo Front EndElantec Semiconductor
Elantec Semiconductor

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche