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參數(shù)資料
| 型號(hào)： | TDA4472 |
| 英文描述： | Video-IF and Quasi Parallel Sound Processing |
| 中文描述： | 視頻- IF和準(zhǔn)并行聲音處理 |
| 文件頁數(shù)： | 8/14頁 |
| 文件大?。?/td> | 170K |
| 代理商： | TDA4472 |
TDA4472-M
TELEFUNKEN Semiconductors
Rev. A2, 15-Oct-96
Preliminary Information
8 (14)
Unit
V
V
A
Max.
V
S
0.8
Typ.
Min.
2.0
0
Symbol
V
SW
Test Conditions / Pins
See note 9
Parameters
Control voltage: – input 1 active
– input 2 active
Switching current
I
SW
±
100
Notes
1.)
2.)
3.)
4.)
This parameter is given as an application information and not tested during production.
In VCR mode the VIF- and SIF path is switched off.
Adjustment of turn over point (delayed tuner AGC) with external resistor R
top
or external voltage V
top
possible.
Resonance circuit of VCO (f
o
= 38.9 MHz): C
VCO
= 8.2 – 10 pF,
Coil L
VCO
with unloaded Q-factor Q
o
60 for an oscillator voltage
(e.g. TOKO coil 7 KM, 292 XNS - 4051Z)
The oscillator drift is related to the picture carrier frequency, at external temperature-compensated LC circuit.
1.07) = 20 log (4.43 MHz component/1.07 MHz component); (1.07) value related to black-white signal
input signal conditions:
picture carrier = 0 dB, colour carrier = –6 dB, sound carrier = –24 dB
Without control voltage at Pin 19 “AFC on” is automatically selected.
Picture carrier PC = 38.9 MHz; sound carrier SC
1
= 33.4 MHz, SC
2
= 33.16 MHz;
PC/SC
1
=13 dB; PC/SC
2
= 20 dB; PC unmodulated (equivalent to sync. peak level).
Without control voltage at Pin 3 the SIF input 1 is automatically selected.
100 mV
RMS
at Pin 20 – 21
5.)
6.)
7.)
8.)
9.)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
5
4
6
7
8
9
10
11
12
13
14
8.2 pF
L
VCO
C
VCO
Loop
filter
150
470 nF
AFC
switch
AFC
+V
S
Intercarrier
(FM/NICAM)
10 k
Loop
comp.
SIF 2
C
Ref
2.2 F
10 k
Tuner
delay
Tuner
AGC
Video
AGC (VIF)
VIF
AGC (SIF)
SIF
Input switch
SIF 1
9
NC
NC
10 F
2.2 F
NC
NC
*)
external L/C circuit (VCO 38.9 MHz)
with TOKO coil 7KM, 292XNS – 4051Z
Figure 3. Test circuit
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| TDA4472-MFLG3 | Video-IF and Quasi Parallel Sound Processing |
| TDA4472-M | Video-IF and Quasi Parallel Sound Processing |
| TDA4472-MSD | Video-IF and Quasi Parallel Sound Processing |
| TDA4480-C | Multi standard quasi parallel-sound processor for TV-sets |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA4472-A | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Video-IF (VIF) with FPLL Demodulation and Quasi Parallel Sound (QPS) Processing |
| TDA4472-M | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Video-IF and Quasi Parallel Sound Processing |
| TDA4472-MFLG3 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Video-IF and Quasi Parallel Sound Processing |
| TDA4472-MSD | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Video-IF and Quasi Parallel Sound Processing |
| TDA4474 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Multistandard Video-IF and Quasi Parallel Sound Processing |
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