LT1251 Linear Technology, LT1251 Datasheet - Page 18

• Manufacturer Part Number: LT1251
• Description: 40MHz Video Fader and DC Gain Controlled Amplifier
• Manufacturer: Linear Technology

LT1251/LT1256
18
TYPICAL APPLICATIONS
V
IN
470
470
R1
R3
0.001 F
470
C
R
''
''
0.001 F
1
3
C1
R
1k
R4
1k
''
4
–
+
–
+
LT1253
LT1253
1/2
1/2
R
1k
R2
1k
''
R
1.5k
R9
1.5k
R
150
2
R
1.5k
R11
150
R10
1.5k
''
''
''
9
C
0.002 F
C4
0.002 F
10
11
14
13
14
''
13
150
150
1
2
4
1
2
R
''
R7
7
V
V
V
V
+
–
+
–
+
–
+
–
C
C
C
C
3
1
3
2
1
R
2
R12, 10k
''
100pF
430
100pF
R
12, 10k
430
R
R
C
LT1256
R5
C
U
C2
LT1256
C
''
''
5
5
5
2
C
C3, 100pF
''
R
R
3, 100pF
FS
FS
10
10
2.5V
V
2.5V
C5
50pF
V
C
50pF
430
FS
430
FS
R
''
12
12
R6
5
''
6
8
8
R
910
R8
910
3.58MHz Phase Shifter
''
8
1000pF
1251/56 TA14a
0.001 F
470
C
R
'
'
1
3
10k
R
1k
'
1k
4
–
+
LT1253
+
–
1/2
LT1253
1/2
R
1k
'
R
1.5k
1k
2
R
1.5k
R
150
'
9
'
'
10
11
C
0.002 F
14
13
'
150
4
1
2
R
'
7
V
V
+
–
+
–
C
C
3
1
2
R
'
1.00
0.98
0.96
0.94
100pF
430
12, 10k
75
R
R
C
LT1256
C
'
'
5
5
2
C
0
'
R
3, 100pF
FS
V
10
OUT
0.5
2.5V
V
C
50pF
430
FS
'
CONTROL VOLTAGE, V
12
R
5
'
6
8
GAIN
1.0
R
910
PHASE
'
8
1.5
C
(V)
2.0
1251/56 TA14b
2.5
420
360
300
240
180
120
60
0