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參數(shù)資料
| 型號(hào)： | TDA4439 |
| 英文描述： | Video IF Amplifier for Multistandard TV and VTR |
| 中文描述： | 視頻中頻多標(biāo)準(zhǔn)電視和錄像機(jī)放大器 |
| 文件頁(yè)數(shù)： | 4/7頁(yè) |
| 文件大小： | 105K |
| 代理商： | TDA4439 |
TELEFUNKEN Semiconductors
TDA4439
Rev. A1: 14.09.1995
4 (7)
Unit
mV
Max.
Typ.
10
20
Min.
Symbol
v
Test Conditions / Pins
f = 38.9 MHz Pin 14
f = 77.8 MHz Pin 14
Parameters
IF-residual voltage at the
video output in the AGC
area
Differential gain error
Differential phase error
Sound-chroma beat (1.07
MHz intermodulation) relat-
ing to demodulated auxiliary
colour carrier
Upsetting factor sync. pulse
Pin 14
Pin 14
d
3
3
50
5
5
%
degree
dB
Video carrier = 0 dB
Pin 14
Colour carrier = –6 dB
Sound carrier = –24 dB
IM
V
sync
V
sync
R
i
C
i
3
%
Input impedance
Pin 1–18
Pin 1–18
1.6
2
k
pF
Switch OFF voltage for
VTR-operation
Switch OFF current for
VTR-operation
DC voltage at the
AFC circuit
Scope of the AFC voltage
AFC current
AFC transconductance
Pin 4
V
4
8
10
V
Pin 4
I
4
150
A
Pins 9 and 10
Pin 12
Pin 12
Pin 12
V
V
i
12
g
5.0
V
V
1.0
V
S
–1.5
0.8
0.2
mA
mA
100kHz
A
AFC residual current
(AFC ”O(jiān)FF”)
AFC current – OFF
AFC polarity switching volt-
age
7)
V
12
=
V
S
/2
Pin 12
±
I
R
10
Pins 9 and 10
“AFC-up”
“AFC-down”
I
OFF
V
7
100
0
2
150
A
V
Pin 7
1.2
V
S
1)
2)
4)
5)
6)
All measurements Pin 14 without load
Residual carrier 10 %
3)
,
A peak white value for at least 10 s must be transmitted for each complete frame
Direct control of standard reversing switch with TTL level
Sync peak value standard B/G
AFC polarity switch may be directly matched to TTL-output (i.e. processor output)
Blanking level 30 % carrier amplitude
7)
Figure 2. AFC characteristics/polarity
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA4443 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MULTISTANDARD VIDEO IF AMPLIFIER |
| TDA4445 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SOUND IF AMPLIFIER |
| TDA4445A | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator |
| TDA4445B | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Quasi Parallel Sound Processing with Quadrature Intercarrier Demodulator |
| TDA4452 | 制造商:TEMIC 制造商全稱:TEMIC Semiconductors 功能描述:Video IF Amplifier for Multistandard TV Receiver and VTR Appliances |
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