EL4501C 데이터 시트보기 (PDF) - Elantec -> Intersil
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EL4501C Datasheet PDF : 10 Pages
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EL4501C - Preliminary
Video Front End
Pin Description
Pin
Number
1
2
3
Pin Name
VFB
VIDEO_IN
DS_MODE
4
DS_ENAB
5
GND
6
GNDD
7
RFREQ
8
FSEL
9
SYNC_IN
10 LOS
11 COMPOSITE
12 HORIZONTAL
13 VERTICAL
14 ODD/EVEN
15 BACK_PORCH
17 SYNC_AMP
18
VSD
19
VS
20 REF-OUT
21 REF_IN
22 DS_REF
23 DS_OUT
24 VIDEO_OUT
Pin Type
Input
Input
Input
Input
Input
Input
Input
Input
Input
Output
Output
Output
Output
Output
Output
Output
Input
Input
Output
Input
Input
Output
Output
Pin Description
Connection for gain and feedback resistors, RF and RG.
Input to DC restore amplifier. Input coupling capacitor connects from here to video source.
Sets the mode of the DS comparator. Logic high selects a standard logic output. Logic low selects an open
drain/collector.
Enables the output of the comparator. A logic high enables the comparator. A logic low tri-states it.
Analog ground.
Digital ground
Connection for bias resistor that sets the overall timing.
Enable/ bypass internal brick wall filter. A logic high is used to enable the filter, a logic low to disable it.
Input to the sync separator. Connects to the video source via a coupling capacitor, or to a color burst input filter.
Loss of signal output. Goes high if no input video signal is detected.
Composite sync output.
Horizontal sync output.
Vertical sync output.
Odd/Even field indicator output.
Back porch output.
Amplitude of sync tip. Can be used to control AGC circuit.
Digital power supply. Nominally +5V
Analog power supply. Nominally +5V.
Voltage reference for use as blanking level in low cost system
Dc voltage on this pin sets the DC restore voltage and output blanking level.
Sets the slicing level or reference level for the comparator.
Output of the data slicing comparator. The output is either open drain/collector or standard symmetrical logic
depending on the DS_MODE pin.
Output of DC restore amplifier.
7
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