TDA4471 Datasheet, PDF (11/16 Pages) TEMIC Semiconductors – Multistandard Video-IF and Quasi Parallel Sound Processing

TELEFUNKEN Semiconductors
TDA4471
AF Intercarrier
(AM) (FM/NICAM) AFC
Loop
+V_S
comp.
n.c. n.c.
10 kW
AFC
switch
Loop
filter
6.8 pF
L_{VCO 150 W}
C_VCO
470 nF
Black
level
C_Ref
2.2 mF 470 nF
L’ and
VIF input
switch
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
TDA4471
1
2
SIF 1
3
4
5
6
7
8
9
n.c.
10 mF
AGC (SIF)
2.2 mF
AGC (VIF)
VIF 1
10 11 12 13 14 15
VIF 2
10 kW
Standard switch
Tuner
(neg/pos)
delay Tuner Video
AGC
*) External L/C circuit (VCO: 38.9 MHz) with TOKO coil 7KN (9 turns, 0.12mm)
Figure 3. Test circuit
Rev. A1: 18.08.1995
Preliminary Information
11 (16)