EL4101C - Preliminary
EL4101C - Preliminary
500MHz Video Front End - 4:1MUX + DC-Restore
Features
•
•
•
•
4:1 multiplexer with monitor out
DC-restore amplifier
±5V operation
500MHz bandwidth
General Description
The EL4101C VFE (Video Front End) is designed to perform the basic
input processing functions in an analog video system as well as provide
analog input processing for digital video systems. The EL4101C VFE
contains a 4:1 MUX input and a DC-restore amplifier. The MUX input
can be used to select which input to use. The DC-restore allows the
input signal to be positioned to the correct voltage level for either ana-
log or digital processing. A buffered output of the MUX selection is
also available for use as a monitor output.
With a 500MHz bandwidth and only 40mA supply current, the
EL4101C is ideal for use in portable and fixed projectors, as well as
HDTV, DTV and other high performance video applications.
The EL4101C is available in the 24-pin QSOP package and is specified
for operation over the full -40°C to +85°C temperature range.
Applications
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•
•
•
•
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HDTV/DTV analog inputs
Video projectors
Computer monitors
Set top boxes
Security video
Broadcast video equipment
Ordering Information
Part No.
EL4101CU
Package
24-Pin QSOP
Tape & Reel
Outline #
MDP0040
Connection Diagram
HPULSE
1 HOLD
2 GNDL2
SIG0
3 IN0
+5V
SIG1
5 IN1
6 GNDI
SIG2
7 IN2
-5V
SIG3
9 IN3
10 N.C.
LOGICD0
LOGICD1
11 D0
12 D1
MFDBK 16
GNDL 15
PDWN 14
N.C. 13
LOGICPD
8 VS1-
VS2- 18
MOUT 17
-5V
R
FM
R
GM
Monitor Out
R
LM
=150Ω
VOUT 20
VS2+ 19
+5V
4 VS1+
DCFDBK 22
VFDBK 21
R
FV
Video Out
R
LV
=150Ω
R
GV
CAP 24
DCREF 23
DCV
0.33µF
August 9, 2001
Note: Pin #6 should be a good high frequency ground
Note:
All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
© 2001 Elantec Semiconductor, Inc.
ELANTEC [ ELANTEC SEMICONDUCTOR ]
