U4459B TEMIC Semiconductors, U4459B Datasheet - Page 4

• Manufacturer Part Number: U4459B
• Description: IF Amplifier
• Manufacturer: TEMIC Semiconductors

U4459B
input
IF1
IF1
4 (7)
95 9637
in
95 9638
1:2
SAW filter
10 nF
200
W
Tuner AGC
Tuner AGC
take over
take over
16
16
1
1
15
15
2
22
2
22
10
10 k
10 k
10 nF
m
m
Tuner AGC
H
m
H
Tuner AGC
F
Figure 4. Basic application circuit
W
W
14
14
3
3
10
10 nF
+V
+V
Figure 3. Test circuit
m
F
S
S
U4459B
U4459B
13
13
4
4
IF gain
control
IF gain
control
4.7
12
m
12
5
5
F
*)
*)
IF2 out
IF2 out
11
6
11
6
10
7
10
7
9
8
9
8
10 nF
10 nF
*) depends on application
*) depends on application
10 nF
10 nF
TELEFUNKEN Semiconductors
200
1
1
m
m
200
F to 10
F to 10
W
W
m
m
10 nF
F
F
10 nF
Rev. A1, 15-Jul-96
2:1
2:1
input
LO
95 9637
input
LO