HFA1103IB Просмотр технического описания (PDF) - Intersil
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HFA1103IB Datasheet PDF : 7 Pages
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HFA1103
TOP LAYOUT
VH
1
OUT
+IN
V+
VL V-
GND
BOTTOM LAYOUT
Typical Application
A circuit which performs the sync stripper and DC restore
functions is shown in Figure 4. Please reference Intersil
Application Note AN9514, titled “Video Amplifier with Sync
Stripper and DC Restore”, for details on this circuit.
FIGURE 3. EVALUATION BOARD ARTWORK
The standard output of a VM700 video measurement set is
shown in Figure 5. The output, after passing through the
Applications Schematic shown on the first page of this data
sheet, is shown in Figure 6.
R1
1K
VIN
OPT.
TO SYNC
SEPARATOR
S/H
CONTROL
IC1a
+
-
IC2
C1
0.1µF
+5V
R3
10K
R2
10K -5V
IC1b
+
-
R4
R5
1K
1K
IC1a + IC1b = CA5260 DUAL AMP
IC2 = 74HC4053 SWITCH
IC3 = HFA1103 VIDEO OP AMP
R7
750
R6
750
C2
47µF
IC3
-
+
R9
10K
R11
75
R10
75
R8
6.8K
FIGURE 4. VIDEO AMPLIFIER WITH SYNC STRIPPER AND DC RESTORE
VOLTS
0.6
IRE:FLT
100.0
0.4
50.0
0.2
0.0
0.0
-0.2
-50.0
-40.0
-30.0
-20.0
-10.0
0.0
10.0
525 LINE NTSC MICROSECONDS
FIGURE 5. OUTPUT OF VM700 VIDEO MEASUREMENT SET
4
+5VDC
VOUT
R12
75
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