TDA4454 Datasheet, PDF (9/11 Pages) TEMIC Semiconductors – Multistandard VIF Amplifier and PLL Demodulator

TELEFUNKEN Semiconductors
TDA4454
Test Circuit
1:2
IF
in-
put
10 nF
16
200 kW
+V_S
22 mH
10 mF
10 mF
R₁ 1 kW
4.7 mF
C₁
470 nF
15
14
13
12
11
TDA 4454
Standard switch
10 mF
38.9 MHz
10
9
L_VCO
C_VCO
1
2
3
4
10 kW
Tuner AGC
take over
Tuner AGC
5
6
4.7 mF
IF AGC
Video
7
8
68 nF
93 7648
Application Circuit
V_S +12 V
Standard switch
10 mF
22 mH
22 mH
10 mF
1 kW
10 nF
10 nF
470 nF
38.9 MHz
IF
50 W ¹
8
SAW filter
16 15 14 13 12 11 10
9
2
7
4.7 nF _{U 4744}
3^B
6
10 nF
4
5
SAW driver
1
10 nF
TDA 4454
2
3
4
5
6
7
8
10 kW
4.7 mF ^{470 W} 68 nF
C_VCO
L_VCO
93 7649
Tuner AGC
take over
Tuner AGC IF AGC Video
Rev. A1: 04.05.1995
Preliminary Information
9 (11)