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参数资料
| 型号： | EL4102CU |
| 英文描述： | 500MHz Video Front End: 4-1 MUX, VGA & DC-Restore |
| 中文描述： | 500MHz的前端视频：4-1多路复用器，VGA端口 |
| 文件页数： | 1/9页 |
| 文件大小： | 272K |
| 代理商： | EL4102CU |
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.
EL
4102C
-
Preliminary
General Description
The EL4102C VFE (Video Front End) is designed to perform all of the
input processing functions in an analog video system as well as provide
analog input processing for digital video systems. The EL4102C VFE
contains a 4:1 MUX input, a DC-restore amplifier and a variable gain
amplifier. The MUX input can be used to select which input to use. In a
digital system, the DC-restore and variable gain amplifiers allow the
input signal to be positioned and scaled to give optimum A-to-D con-
versions results. In an analog system these perform the brightness and
contrast operations. A buffered output of the MUX selection is also
available for use as a monitor output.
With a 500MHz bandwidth and only 50mA supply current, the
EL4102C is ideal for use in portable and fixed projectors, as well as
HDTV, DTV and other high performance video applications.
A 3-wire digital interface enables full control of the input selection, as
well as 0 to -18dB of gain and blanking operations.
The EL4102C is available in the QSOP24 package and is specified for
operation over the -40°C to +85°C temperature range.
Connection Diagram
1
2
3
4
16
15
14
13
5
6
7
12
11
9
8
10
20
19
18
17
24
23
22
21
HOLD
GNDL2
IN0
VS1+
IN1
GNDI
IN2
VS-
IN3
ENB
SDI
SCLK
CAP
DCREF
DCFDBK
VFDBK
VOUT
VS2+
VS-
MOUT
MFDBK
GNDL
PDWN
SDO
SAMPLE PULSE
VI/P0
+5V
VI/P1
VI/P2
-5V
VI/P3
SDI
SCLK
Video Out
RL=150
Monitor Out
RL=150
PDWN
0.33nF
DCV
RGV
RFV
+5V
-5V
RFM
RGM
DATAOUT
CH
ENB
0V
Features
4:1 multiplexer with monitor out
18dB variable gain amplifier
DC-restore amplifier
Digital control serial interface
±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.
Package
Tape & Reel
Outline #
EL4102CU
24-Pin QSOP
MDP0040
EL4102C - Preliminary
500MHz Video Front End: 4-1 MUX, VGA & DC-Restore
Augu
st
30,
2001
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