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PDF TDA6151-5 Data sheet ( Hoja de datos )
| Número de pieza | TDA6151-5 | |
| Descripción | Satellite-Video IC | |
| Fabricantes | Siemens Semiconductor | |
| Logotipo |  |
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Satellite-Video IC
TDA 6151-5
TDA 6151-5X
Preliminary Data
Features
q Adjustable gain for different FM deviations
q Video buffer and special baseband output for the sound
processor SDA 6102-5X are available
q Clamping circuit for elimination of "Energy Dispersal"
signal
q Built-in video switch for external applied video signal
q Application in satellite receiving systems.
P-DIP-20-1
Bipolar IC
P-DSO-20-1
Type
TDA 6151-5
TDA 6151-5X
Ordering Code
Q67000-A5175
Q67000-A5074
Package
P-DIP-20-1
P-DSO-20-1 (SMD)
The video circuit for a satellite application consists of a voltage controlled AGC-amplifier, driver for
two external de-emphasis networks, followed by a three-stage switch. An additional baseband
output is available via a driver. The output signal of the video switch is applied to a video clamping
circuit, this clamping circuit removes the energy dispersal signal from the video signal. The clamped
signal is applied via a video switch to the SCART-output.
Circuit Description
The demodulated FM-satellite video signal is fed via a buffer amplifier to a gain controlled amplifier.
The gain control is done using an external applied DC-voltage. The output signal of this amplifier is
used to drive three separate signal pathes. First of all the baseband is fed via a high pass filter with
a cut off frequency of approx. 4 MHz to the input of a SAT-TV-sound processor, e.g. TDA 6160 X.
A second output with a buffer amplifier is used to drive two external de-emphasis networks. After
passing through the de-emphasis networks the baseband signals are fed into two inputs of the de-
Semiconductor Group
1
04.95
1 page  
Pin Functions
TDA 6151-5
TDA 6151-5X
CVBS (Pin 1)
SOUND (Pin 18)
GAIN (Pin 19)
Semiconductor Group
CVBS IN (Pin 20)
5
5 Page 
TDA 6151-5
TDA 6151-5X
DC-Characteristics (cont’d)
Parameter
Symbol
Switching level for
de-emphasis
L = de-emphasis 2
M (or open) = de-emphasis 1
H = linear
V2
Switching level for video switch V13
L = RF-mode
H (or open) = external
Input current of the switches
H
L
I2,13,8,10
Switching level for setting the
clamping level
L = high level (Mac operation)
H (or open) = low clamping
level (CVBS operation)
V8
Switching level for setting the
clamping mode
L = external clamping (Mac
operation)
H (or open) = internal (CVBS-
operation)
V10
Limit Values
min. typ. max.
01
2.3 2.8 3.3
4.0 5
01
25
– 300 – 200 – 100
100 200 330
01
25
01
25
Unit Test Condition
V
V
V
V
V
µA
µA
V
V
V
V
Semiconductor Group
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet TDA6151-5.PDF ] | |
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