SATURATED POWER CAPABILITY26 VOLT,
900 MHz PERFORMANCE
ν P
ν INHERENT RUGGEDNESS:
ν ESDSENSITIVITY, CLASS 3 (MIL STD-883D
DESCRIPTION
The SD4590 is designed for both analog and
digital cellular base stations over the 800 to 960
MHz frequency range, specifically those systems
requiring the high linearity and efficiency afforded
by class AB operation. Integrated input/output
pre-matchingsimplifiesamplifierdesign.
Ruggedness, MTTF, and linearity are enhanced
usingdiffusedemitterresistorsand
refractory/goldmetallization.
=150WMIN.
OUT
GAIN = 8.5 dB MIN.
IMD
=-28dB MAX. @ P
3
=150W PEP
OUT
LOADMISMATCH TOLERANCE OF
5:1 MIN. VSWR
3 dB OVERDRIVECAPABILITY
METHOD3015)
SD4590
RF POWER TRANSISTORS
M208
epoxy sealed
ORDERCODEBRANDING
SD4590SD4590
PIN CONNECTION
1. Collector3.Base
2. Emitter
ABSOLUTE MAXIMUM RATINGS (T
Symb o lParameterVal u eUni t
V
V
V
P
DISS
T
Collector-Base Voltage65V
CBO
Collector-Em it ter Voltage28V
CEO
Emitter-Bas e Voltage3.5V
EBO
Device Current25A
I
C
Power Diss ip at ion300W
Max. Oper ating J unc t i on Tem pe r at ure200
transmissionlines (see photomaster)
C1, C2, C23, C2575pFCeramicChip ATC B
C3, C4, C21, C222 x 47pF Ceramic Chip, ATC B
C5, C160.8- 8pFVariable, JOHANSONGiga - Trim
C6, C9750pF Ceramic Chip, ATC B
C7, C1039nFCeramicChip, ATCB
C8, C11, C24,C26 47µF, 50V Electrolytic
C13, C17100µF,50V Electrolytic
C129.1pF, CeramicChip, ATC A
C14, C1839nF CeramicChip (OPTIONAL)
C15, C19750pFCeramicChip (OPTIONAL)
C201.3pFCeramicChip, ATC B
L1, L4, L5, L812 Turns,#200AWG, 0.15” I.D. (Tight)
L2, L3, L6, L74 Turns, #20AWG,0.13” I.D.(1:1)
R1, R2, R3, R45 X 50 Ω ChipResistor
εr = 2.55, Height= 31.25 mil 1 oz. Cu.
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SD4590
TESTCIRCUIT PHOTOMASTER
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SD4590
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SD4590
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.
The ST logo is a trademark of STMicroelectronics
2000 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronicsGROUPOF COMPANIES
Australia - Brazil - China - Finland - France - Germany- Hong Kong - India - Italy- Japan - Malaysia - Malta - Morocco -
Singapore- Spain - Sweden - Switzerland -United Kingdom - U.S.A.
http://www.st.com
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