Spectra Engineering MX800 - Circuit Diagram: MX800 PA CIRCUIT DIAGRAM; PA Circuit Diagram Details

1 2 3 4 5 6 7 8
A B C D
8
7654321
D
C B A
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MALAGA 6062
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ETH
C25
1n
ETH
CN2-1
ETH
C43
1n
ETH
C42
1n
ETH
C20
1n
ETH
C23
1n
ETH
C36
1n
CN4-3
ETH
C10
1n
ETHETH
C4 100n
ETH
C13
1n
ETH
C12
1n
ETH
C37
1n
ETH
C31
100n
L4 L3 L2
L1
ETH
R3 820R
R2
5R6
ETH
R18
10K
R17
10K
R16
1K
R19
1K
CN4-1
ETH
D3
BZW03C18
CN4-8
ETH
IC3 *78L05
VCC
8
TST
7
CLK
6
DATA
5
A0
1
A1
2
A2
3
VEE
4
IC4
* X24C04
C35
100n
CN4-7 CN4-10
ETH
ETH
ETH
C8 100n
R7 10R
ETH
C38
1n
ETH
C39
1n
CN4-4
C3 3u3/16V
ETH
C40
1n
TS1
KTY10-5
TR2 FZT751
ETH
C11
1n
ETHETH
C1 1n
ETH
C24
1n
ETH
C29
470u
ETH
C26
1n
ETH
C30
100n
L7 RFC
ETH
C32
1n
CN2-2
L5
RFC
L6 RFC
L9 RFC
ETHETH
C22
470n
C21
1n
ETH
ETH
ETH
ETH
ETH
R11
56R
R10
68R
ETH
CN3
CT2 1-7.5pF
TR1 MRF847
L8
C47
15p
C46
15p
R6 10R L10
43nH
C16
33p
D1
HSMS-2800
C18
1n
ETH
ETH
C19
1n
D2
HSMS-2800
R8 68R R9 56R
ETH
CN4-5
C17
1n
ETH
C41
1n
ETH
ETH ETH
C44
10p
C45
10p
ETH ETH
CT1 1-7.5pF
ETH
C9 3u3/16V
ETH
R4 10K
R5
1K8
C15
1n
ETH
CN4-2
ETH
CN4-6
C14
1n
CN1
ETH
CN4-9
ETH
R1
820R
ETH
SK2-3
C34
1n
C33
100n
ETHETH
C5 1n
ETH
C7 3u3/16V
ETH
C2 100n C6 100n
ETH
PA800960 REVB
APPLICATION2. * DEPENDS ON
COMPONENTS FITTED1. NOT ALL
NOTE:
IC1
U T S R 805-825MHz
824-849MHz
872-905MHz
BAND
850-870MHz
FREQ RANGE
PA COMPONENT VALUES
S8 S9 S10 S11 S12
CLOCK
DATA
S7
S6
S5
S4
S3
S2
S1
RF IN
RF IN
+VE
+VE
+VE
RF OUT
2K (IN HEATSINK)
PTT IN
TEMP SENSOR
+12V IN
FWD VOLTS
REFL VOLTS
RF OUTPUTIC1
RF POWER HYBRID
MHW820-2
MHW820-2
MHW820-3
MHW820-2
N.F.
(C) Copyright
ENGINEERING SPECTRA
GJ GJ
APP
APPROVED
CHECKED
DRAWN
DESIGNED
DATEBY
PCB
REF
REVSHEETDRAWING No
TITLEREVISIONDATE
AMPLIFIER MODULE
CS010-1A A
10-2-97
12-5-97
1 OF 1
MX800 35 WATT POWER
BANDS R-X 805-960MHz
MHW820-3
MHW820-3890-915MHz
817-950MHz
V W X 925-960MHz MHW820-3