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S974T Schematic ( PDF Datasheet ) - Vishay Telefunken

Teilenummer S974T
Beschreibung MOSMIC for TV-Tuner Prestage with 9 V Supply Voltage
Hersteller Vishay Telefunken
Logo Vishay Telefunken Logo 




Gesamt 6 Seiten
S974T Datasheet, Funktion
S974T/S974TR/S974TRW
Vishay Telefunken
MOSMIC® for TV–Tuner Prestage with 9 V Supply
Voltage
MOSMIC - MOS Monolithic Integrated Circuit
Electrostatic sensitive device.
Observe precautions for handling.
Applications
Low noise gain controlled input stages in UHF-and
VHF- tuner with 9 V supply voltage.
Features
D Easy Gate 1 switch-off with PNP switching tran-
sistors inside PLL
D High AGC-range with less steep slope
D Integrated gate protection diodes
C block
AGC
G2
RF in
G1
C block
RFC
D
S C block
VDD
RF out
94 9296
D Low noise figure
D High gain
D Improved cross modulation at gain reduction
D SMD package
21
12
94 9279
13 579
34
S974T Marking: 974
Plastic case (SOT 143)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
12
94 9278
43
95 10831
S974TR Marking: 97R
Plastic case (SOT 143R)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
13 654
13 566
43
S974TRW Marking: W97
Plastic case (SOT 343R)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
Document Number 85063
Rev. 3, 20-Jan-99
www.vishay.de FaxBack +1-408-970-5600
1 (6)






S974T Datasheet, Funktion
S974T/S974TR/S974TRW
Vishay Telefunken
Ozone Depleting Substances Policy Statement
It is the policy of Vishay Semiconductor GmbH to
1. Meet all present and future national and international statutory requirements.
2. Regularly and continuously improve the performance of our products, processes, distribution and operating
systems with respect to their impact on the health and safety of our employees and the public, as well as their
impact on the environment.
It is particular concern to control or eliminate releases of those substances into the atmosphere which are known as
ozone depleting substances ( ODSs ).
The Montreal Protocol ( 1987 ) and its London Amendments ( 1990 ) intend to severely restrict the use of ODSs and
forbid their use within the next ten years. Various national and international initiatives are pressing for an earlier ban
on these substances.
Vishay Semiconductor GmbH has been able to use its policy of continuous improvements to eliminate the use of
ODSs listed in the following documents.
1. Annex A, B and list of transitional substances of the Montreal Protocol and the London Amendments respectively
2 . Class I and II ozone depleting substances in the Clean Air Act Amendments of 1990 by the Environmental
Protection Agency ( EPA ) in the USA
3. Council Decision 88/540/EEC and 91/690/EEC Annex A, B and C ( transitional substances ) respectively.
Vishay Semiconductor GmbH can certify that our semiconductors are not manufactured with ozone depleting
substances and do not contain such substances.
We reserve the right to make changes to improve technical design and may do so without further notice.
Parameters can vary in different applications. All operating parameters must be validated for each customer application
by the customer. Should the buyer use Vishay-Telefunken products for any unintended or unauthorized application, the
buyer shall indemnify Vishay-Telefunken against all claims, costs, damages, and expenses, arising out of, directly or
indirectly, any claim of personal damage, injury or death associated with such unintended or unauthorized use.
Vishay Semiconductor GmbH, P.O.B. 3535, D-74025 Heilbronn, Germany
Telephone: 49 ( 0 ) 7131 67 2831, Fax number: 49 ( 0 ) 7131 67 2423
www.vishay.de FaxBack +1-408-970-5600
6 (6)
Document Number 85063
Rev. 3, 20-Jan-99

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