Vishay Telefunken
BIPMIC – Cascadable Silicon Bipolar Amplifier
Electrostatic sensitive device.
Observe precautions for handling.
Applications
General purpose 50 W gain block for narrow and broad
band IF and RF amplifiers in commercial and industrial
applications. The 50 W level allows directly to cascade
Features
D
Broadband amplification
D
50 W cascadable gain block
D
High gain (19 dB @900 MHz)
D
Low noise figure (2.9 db @900 Mhz)
this amplifier with minimal external circuitry, thus providing a simple, cost effective way to achieve high level
amplification.
D
High output level
D
Low cost surface mount plastic package
D
Few external components
S868T
21
94 9279
13 579
43
S868T Marking: 868
Plastic case (SOT 143)
1 = RF-output, 2 = Ground,
3 = RF-input, 4 = Ground
Typical biasing configuration
Absolute Maximum Ratings
T
= 25_C, unless otherwise specified
amb
Parameter Test Conditions Symbol Value Unit
Device current I
RF input power P
Total power dissipation T
Junction temperature T
Storage temperature range T
≤ 25 °C P
amb
bias
in
tot
stg
55 mA
20 dBm
275 mW
j
150
–65 to +150
°
C
°
C
Maximum Thermal Resistance
T
= 25_C, unless otherwise specified
amb
Parameter T est Conditions Symbol Value Unit
Junction ambient on glass fibre printed board (25 x 20 x 1.5) mm
plated with 35mm Cu
Document Number 85056
Rev. 3, 20-Jan-99
3
R
thJA
www.vishay.de • FaxBack +1-408-970-5600
450 K/W
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S868T
Vishay Telefunken
Electrical AC Characteristics
I
= 45 mA, f = 900 MHz , Z0 = 50 W, T
bias
Parameter Test Conditions Symbol Min Typ Max Unit
Power gain G
3 dB bandwidth f
Input VSWR f = 0.1 to 2.5 GHz VSWR 1.8:1
Output VSWR f = 0.1 to 2.5 GHz VSWR 1.8:1
Noise figure f = 900 MHz F 2.9 dB
Intermodulation distortion 22.5 mV input voltage IM
Output power @1dB gain compression P
Device voltage V
Dimensions of S868T in mm
= 25_C, unless otherwise specified
amb
p
3dB
3
–1dB
d
17 19 dB
0.5 GHz
55 dB
13 dBm
5 V
www.vishay.de • FaxBack +1-408-970-5600
2 (3)
96 12240
Document Number 85056
Rev. 3, 20-Jan-99
S868T
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.
Document Number 85056
Rev. 3, 20-Jan-99
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
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