Page 1
S904T/S904TR
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
Integrated gate protection diodes
D
Low noise figure
D
20mS forward transadmittance
D
Biasing network on chip
21
94 9279
43
S904T Marking: 904
Plastic case (SOT 143)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
13 579
D
RFC
C block
V
DD
RF out
94 9296
C block
AGC
RF in
C block
D
Improved cross modulation at gain reduction
D
High AGC-range
D
SMD package
G2
G1
S
21
94 9278
95 10831
43
S904TR Marking: 90R
Plastic case (SOT 143R)
1 = Source, 2 = Drain, 3 = Gate 2, 4 = Gate 1
Absolute Maximum Ratings
T
= 25_C, unless otherwise specified
amb
Parameter Test Conditions Symbol Value Unit
Drain - source voltage V
Drain current I
Gate 1/Gate 2 - source peak current ±I
Gate 1/Gate 2 - source voltage ±V
Total power dissipation T
≤ 60 °C P
amb
G1/G2SM
G1/G2SM
Channel temperature T
Storage temperature range T
DS
D
tot
Ch
stg
12 V
30 mA
10 mA
6 V
200 mW
150
–55 to +150
Maximum Thermal Resistance
T
= 25_C, unless otherwise specified
amb
Parameter T est Conditions Symbol Value Unit
Channel ambient on glass fibre printed board (25 x 20 x 1.5) mm
plated with 35mm Cu
Document Number 85068
Rev. 3, 20-Jan-99
3
R
thChA
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450 K/W
°
°
C
C
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Page 2
S904T/S904TR
g
g
Vishay Telefunken
Electrical DC Characteristics
T
= 25_C, unless otherwise specified
amb
Parameter Test Conditions Symbol Min Typ Max Unit
Gate 1 - source
breakdown voltage
Gate 2 - source
breakdown voltage
Gate 1 - source +V
leakage current
Gate 2 - source
leakage current
Drain current VDS = 9 V, V
Self-biased
operating current
Gate 2 - source
cut-off voltage
Electrical AC Characteristics
±I
= 10 mA, V
G1S
±I
= 10 mA, V
G2S
= 5 V, V
G1S
–V
= 5 V, V
G1S
±V
= 5 V, V
G2S
VDS = 9 V, V
VDS = 9 V, V
= VDS = 0 ±V
G2S
= VDS = 0 ±V
G1S
= VDS = 0 +I
G2S
= VDS = 0 –I
G2S
= VDS = 0 ±I
G1S
= 0, V
G1S
= nc, V
G1S
= nc, ID = 20 mA V
G1S
= 4 V I
G2S
= 4 V I
G2S
(BR)G1SS
(BR)G2SS
G1SS
G1SS
G2SS
DSS
DSP
G2S(OFF)
7 10 V
7 10 V
50 500mA
7 10 14 mA
1.0 V
50
m
100mA
20 nA
A
VDS = 9 V, V
= 4 V, f = 1 MHz , T
G2S
= 25_C, unless otherwise specified
amb
Parameter Test Conditions Symbol Min Typ Max Unit
Forward transadmittance y
Gate 1 input capacitance C
Feedback capacitance C
Output capacitance C
Power gain GS = 2 mS, GL = 0.5 mS, f = 200 MHz G
GS = 3,3 mS, GL = 1 mS, f = 800 MHz G
AGC range VDS = 9 V, V
= 1 to 4 V, f = 800 MHz
G2S
17 20 23 mS
21s
2.0 2.5 pF
20 fF
0.9 pF
26 dB
40 dB
D
issg1
rss
oss
ps
ps
G
ps
16.5 20 dB
Noise figure GS = 2 mS, GL = 0.5 mS, f = 200 MHz F 1 dB
GS = 3,3 mS, GL = 1 mS, f = 800 MHz F 1.6 2.5 dB
Caution for Gate 1 switch-off mode:
No external DC-voltage on Gate 1 in active mode!
Switch-off at Gate 1 with V
Using open collector switching transistor (inside of PLL), insert 10 kW collector resistor.
< 0.7 V is feasible.
G1S
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Document Number 85068
Rev. 3, 20-Jan-99
Page 3
Dimensions of S904T in mm
S904T/S904TR
Vishay Telefunken
Dimensions of S904TR in mm
96 12240
Document Number 85068
Rev. 3, 20-Jan-99
96 12239
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Page 4
S904T/S904TR
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. V arious 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
4 (4)
Document Number 85068
Rev. 3, 20-Jan-99
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