EL4501C End Datasheet

EL4501C Datasheet, PDF, Equivalent


Part Number

EL4501C

Description

Video Front End

Manufacture

Elantec Semiconductor

Total Page 10 Pages
Datasheet
Download EL4501C Datasheet


EL4501C
EL4501C - Preliminary
Video Front End
Features
• DC restore and sync separator
• Wideband (100MHz) DC restore
• Advanced sync separator
• Programmable data slicer
• Single 5 volt operation
• Differential Gain = 0.1%
• Differential Phase = 0.1°
Low power (<75mW)
Applications
Video Capture & Editing
Video Projectors
Set Top Boxes
Security Video
Embedded data recovery
Ordering Information
Part No.
EL4501CS
EL4501CU
Temp. Range
-40°C to +85°C
-40°C to +85°C
Package
24-Pin SOIC
24-Pin QSOP
Outline #
MDP0027
MDP0031
General Description
The EL4501C Video Front End (VFE) is an integrated solution that
provides the key analog signal conditioning functions for analog video
signals. It forms the front end interface for either an analog or ana-
log/digital video system. The VFE contains a high bandwidth DC
Restore, a sophisticated Sync Separator, and a Data Slicer for embed-
ded data recovery.
The VFE will perform the restoration of the DC reference level
(blanking level) and the extraction of all of the necessary timing sig-
nals needed for synchronization and control. The sync separator is
designed for very good noise immunity by incorporating a signal qual-
ification scheme and internal brick wall filter. A data slicer is also
included to help decode data embedded in the active video or VBI
areas of the signal.
The VFE operates from a single 5 volt supply and is available in a
small 24 pin QSOP package that takes only 0.08in2(54mm2) of board
area, as well as a standard 24 pin SOIC.
Connection Diagram
VFB 1
VIDEO_IN 2
DS_MODE 3
DS_ENAB 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 NC
15 BACK_PORCH
14 ODD/EVEN
13 VERTICAL
© 2000 Elantec Semiconductor, Inc.

EL4501C
EL4501C - Preliminary
Video Front End
Absolute Maximum Ratings (TA = 25°C)
Values beyond absolute maximum ratings can cause the device to be pre-
maturely damaged. Absolute maximum ratings are stress ratings only and
functional device operation is not implied.
Supply Voltage (VS to GND)
+6V
Input Voltage
GND - 0.3V, VS +0.3V
Storage Temperature Range
Ambient Operating Temperature
Operating Junction Temperature
Power Dissipation
-65°C to +150°C
-40°C to +85°C
125°C
See Curves
Important Note:
All parameters having Min/Max specifications are guaranteed. Typ values are for information purposes only. Unless otherwise noted, all tests are at the
specified temperature and are pulsed tests, therefore: TJ = TC = TA.
Electrical Characteristics
VS = +5V, GND = 0V, TA = 25°C, Input Video = 1VP-P unless otherwise specified.
Parameter
Description
Conditions
Min Typ Max Unit
IS Supply Current
No Load, VIN = 0V
20 mA
Video Amplifier Section
VOP Positive Output Voltage Swing
RL = 150to VS/2
RL = 150to GND
4.70 4.85
4.20 4.60
V
V
VON Negative Output Voltage Swing
+IOUT
-IOUT
dG
dP
BW
Positive Output Current
Negative Output Current
Differential Gain Error [1]
Differential Phase Error [1]
Bandwidth
RL = 1k to VS/2
4.95 4.97
V
RL = 150to VS/2
0.15 0.30
V
RL = 150to GND
0V
RL = 1k to VS/2
0.03 0.05
V
RL = 10to VS/2
60 80 120 mA
RL = 10to VS/2
-50 -60 -80 mA
Standard NTSC test, AV = 2, RL = 150
0.1
%
Standard NTSC test, AV = 2, RL = 150
0.1
°
-3dB, G = 1, RL = 10kto GND
100 MHz
-3dB, G = 1, RL = 150to GND
60 MHz
BW1
Bandwidth
+/-0.1dB, G = 2, RL = 150to GND
8 MHz
SR Slew Rate
25% to 75%, 3.5VP-P, RL = 150
150 200
V/µ s
VRL Ref Level Range
ts Settling Time
RIN Input Resistance (VIDEO_IN)
to 0.1%, VIN = 0V to 3V
0 3.5 V
35 ns
90 115 140 k
CIN Input Capacitance (VIDEO_IN)
1.5 pF
AVOL
Open Loop Voltage Gain
RL = no load, VOUT = 0.5V to 3V
RL = 150to GND, VOUT = 0.5V to 3V
54
40
65
50
dB
dB
DC Restore Section
CMIR
Common Mode Input Range (REF_IN)
CMRR TBD dB
0 3.5 V
VOS
TCVOS
Input Offset Voltage
Input Offset Voltage Temperature Coefficient
DC restored
-20 +20 mV
10 µV/°C
IB Input Bias Current (REF_IN)
VCM = 0V to 3.5V
1 100 nA
Data Slicer Section
IIH Input High Current (DS_MODE & DS_ENAB) VIH = 5V
4 6 µA
IIL Input Low Current (DS_MODE & DS_ENAB) VIL = 0V
1 100 nA
VIH Input High Voltage (DS_MODE & DS_ENAB)
4.5 V
VIL Input Low Voltage (DS_MODE & DS_ENAB)
0.5 V
VOH Output High Voltage (DS_OUT)
IOUT = -1mA
4.75 4.9
V
VOL
IOUT
Output Low Voltage (DS_OUT)
Short Circuit Current (DS_OUT)
IOUT = 1mA
RL = 10to 2.5V
0.1 0.25
V
15 20
mA
2


Features EL4501C - Preliminary EL4501C - Prelimi nary Video Front End Features • • • • • • • • DC restore and sync separator Wideband (100MHz) DC res tore Advanced sync separator Programmab le data slicer Single 5 volt operation Differential Gain = 0.1% Differential P hase = 0.1° Low power (<75mW) General Description The EL4501C Video Front En d (VFE) is an integrated solution that provides the key analog signal conditio ning functions for analog video signals . It forms the front end interface for either an analog or analog/digital vide o system. The VFE contains a high bandw idth DC Restore, a sophisticated Sync S eparator, and a Data Slicer for embedde d data recovery. The VFE will perform t he restoration of the DC reference leve l (blanking level) and the extraction o f all of the necessary timing signals n eeded for synchronization and control. The sync separator is designed for very good noise immunity by incorporating a signal qualification scheme and internal brick wall filter. A data slicer is al.
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