TDA4470-M Datasheet, PDF (10/16 Pages) TEMIC Semiconductors – Multistandard Video-IF and Quasi Parallel Sound Processing

TDA4470-M
SIF 2
28 27
AF Intercarrier
(AM) (FM/NICAM)
Loop
+V_S
comp.
10 kW
26 25 24 23
AFC
22
AFC
switch
Loop
filter
W ^*)
L_VCO 150
8.2 pF
C_VCO
470 nF
22 mF
C_Ref
Black
level
470 nF
21 20 19 18 17 16 15
1
2
3
4
5
6
7
8
9 10 11 12 13 14
10 mF
22 K
2.2 mF ^{10 kW}
SIF
Input switch
SIF 1
AGC (SIF)
AGC (VIF)
VIF
*_{) external L/C circuit (VCO 38.9 MHz)}
with TOKO coil 7KM, 292 XNS – 4051Z
Video
Tuner
neg/pos
L’
delay Tuner Video
AGC
Figure 3. Test circuit
10 (16)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A2, 15-Oct-96