|
|
PDF EB105 Data sheet ( Hoja de datos )
| Número de pieza | EB105 | |
| Descripción | 800MHz AMPLIFIER | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de EB105 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
|
No Preview Available !
MOTOROLA
SEMICONDUCTOR
ENGINEERING BULLETIN
Order this document
by EB105/D
EB105
A 30 WATT, 800 MHz AMPLIFIER DESIGN
Prepared by: Alan Wood
Semiconductor Product Sector
INTRODUCTION
Simplicity and compactness mark the design of this
30 Watt amplifier des igned for the 800 MHz mobile
communications band. The amplifier uses the internally
matched MRF844 transistor in a common base Class C
configuration providing a minimum of 5.0 dB gain over a fixed
tuned bandwidth of 800 to 870 MHz at 12.5 volts. Lower
manufacturing costs are of prime concern to land mobile
equipment suppliers and single-board, fixed tuned transmit-
ter amplifier designs are becoming increasingly common.
Two versions are therefore presented, one using glass teflon
laminate and the second using less expensive G-10 board.
(Figure 1).
CIRCUIT DESCRIPTION
The circuit is designed to be driven from a 50 ohm source
and be terminated in a nominal 50 ohm load. Both input and
output matching networks are similar in design and consist
of two element short-step Chebyshev transmission line
transformations fabricated as microstrip lines (Reference 1).
Mini-Underwood mica capacitors are used at the input and
output of the transistor transforming the complex inductive
impedance to an essentially non-reactive real impedance
over most of the band. A minimum of additional components
provide the dc biasing and RF decoupling. Refer to Figure
2 for a schematic diagram of the amplifier .
b. Circuit Using G–10 Board
a. Circuit Using Glass Teflon Laminate
Figure 1. Two Versions of MRF844 Broadband Circuit
©RMFotAoroplap, lInicc.a1t9i9o3n Reports
1
http://www.Datasheet4U.com
1 page  
EB105
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
and specifically disclaims any and all liabilit,yincluding without limitation consequential or incidental damages. y“pTical” parameters can and do vary in dfief rent
applications. All operating parameters, including “Typicals” must be validated for each customer application by custome’rs technical experts. Motorola does
not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or auothrized for use as components in
systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of
the Motorola product could create a situation where personal injury or death may occur . Should Buyer purchase or use Motorola products for any such
unintended or unauthorized application, Buyer shall indemnify and hold Motorolaand its oficers, employees, subsidiaries, afiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly , any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the desnigor manufacture of the part.
Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Afirmative Action Employer.
Literature Distribution Centers:
USA: Motorola Literature Distribution; P.O. Box 20912; Phoenix, Arizona 85036.
EUROPE: Motorola Ltd.; European Literature Centre; 88 Tanners Drive, Blakelands, Milton Keynes, MK14 5BP, England.
JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan.
ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong.
RF Application Reports
◊
EB1055/D
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet EB105.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| EB102 | Transistor |  SYS Semiconductors |
| EB102DL | Transistor |  SY Semiconductors |
| EB102H | EB SERIES TRANSISTORS |  Shengyuan |
| EB105 | 800MHz AMPLIFIER | Motorola Semiconductors |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |