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TDA4470-M 데이터 시트보기 (PDF) - Temic Semiconductors
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TDA4470-M
Multistandard Video-IF and Quasi Parallel Sound Processing
Temic Semiconductors
TDA4470-M Datasheet PDF : 16 Pages
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TDA4470-M
Block Diagram
Offset
comp.
(optional)
Loop
filter
VCO
ÏÏ
L’ switch
VIF
76
ÏÏÏ
C
AGC
8
ÏÏÏ
15
C
BL
Tuner
Take over
11
ÏÏÏÏ
10
point
SIF 2
27
ÏÏÏ
28
SIF input
ÏÏ
switch
3
ÏÏ
SIF 1
21
ÏÏÏ
Ï
5
C
AGC
Ï Ï ÏÏ ÏÏ
26
18
20
21
FPLL
VCO
0
°
+
90
°
phase shift
VIF amp
AGC
(VIF)
Tuner
AGC
SIF amp
Video det.
Supply
FM det.
AGC
(SIF)
AM det.
Figure 1. Block diagram
Ï
14
Control
AFC
19
AFC
Ï ÏÏ
switch
Ï ÏÏ
22
ÏÏ
AFC
ÏÏ
12
Video
13
ÏÏ ÏÏÏÏ
Standard
Standard
switch
23
Ï ÏÏ
V
S
Ï ÏÏ
17
ÏÏ
C
Ref
24
ÏÏ
Intercarrier
(FM / NICAM)
ÏÏ
25
AF
(AM)
Ï
4,9,16
95 10851
2 (16)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A2, 15-Oct-96
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