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PDF EL4101CU Data sheet ( Hoja de datos )
| Número de pieza | EL4101CU | |
| Descripción | 500MHz Video Front End - 4:1MUX + DC-Restore | |
| Fabricantes | Elantec Semiconductor | |
| Logotipo |  |
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EL4101C - Preliminary
500MHz Video Front End - 4:1MUX + DC-Restore
Features
• 4:1 multiplexer with monitor out
• DC-restore amplifier
• ±5V operation
• 500MHz bandwidth
Applications
• 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
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.
Connection Diagram
SIG0
SIG1
SIG2
SIG3
LOGICD0
LOGICD1
HPULSE
1 HOLD
2 GNDL2
CAP 24
DCREF 23 DCV
0.33µF
3 IN0
+5V 4 VS1+
5 IN1
6 GNDI
7 IN2
-5V 8 VS1-
9 IN3
DCFDBK 22
VFDBK 21
VOUT 20
VS2+ 19 +5V
VS2- 18 -5V
MOUT 17
MFDBK 16
RGV
RFV
Video Out
RLV=150Ω
Monitor Out
RLM=150Ω
RFM
RGM
10 N.C.
GNDL 15
11 D0
PDWN 14 LOGICPD
12 D1
N.C. 13
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.
1 page  
EL4101C - Preliminary
500MHz Video Front End - 4:1MUX + DC-Restore
Block Diagram (Gain of 1)
Input Video
IN0
Input Video
IN1
Input Video
IN2
Input Video
IN3
D0
D1
VS+ MFDBK
-
+
+
-
+
-
GNDL
GND GNDL2
VS-
PDWN
MOUT
750Ω
VOUT
VFDBK
750Ω
DCFDBK
DCREF
HOLD
CAP
CH
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet EL4101CU.PDF ] | |
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