U4459B Datasheet, PDF (4/7 Pages) TEMIC Semiconductors – IF Amplifier for Cable DVB Processing

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