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

1 2 3 4 5 6 7 8
A B C D
8
7654321
D
C B A
9 TRADE ROAD
MALAGA 6062
WESTERN AUSTRALIA
PHONE +618-92482755
C13
100n
L8 220nH
ETH
CR1
L6 390nH
L7
390nH
L3
L5 L4
SKT-4
ETH
C15
1n
ETH
C3 1n
R1 270R
R2 270R
L2 390nH
L1 390nH
ETH ETH
ETH
ETH
C4 1n
R3 560R R4 100R
ETH
C11
ETH
SKU-2 SKU-3
ETH
C14
1n
ETH
SKT-5
SKT-6 SKU-1
C2 1n C1 1n
C7 1n C6 1n
ETH ETH
3
2 1
4
IC2 MAR-6SM
3
2 1
4
IC1 MAR-6SM
C20
1n
ETH
ETH
R6 100R
ETH
C9
R10
2K2
R7 2K2
C21
1n
C18
1n
ETH
ETH
ETH
D3 BB131
C22
1n
SKT-1
ETH
TR1 2SC3583
R8 3K3 R9 1K5
ETH
C12
ETH
D1 BB131 C10
C8 1n
R5 220R
C17
C19
ETH
D2 BB131
ETH
C28
D6 BB131 D7 BB131
ETH
ETH
ETH
R13
2K2
R14
NF
R15
NF
ETH ETH
D6,D7 NF
D1,D2,D3=BB149
R13=2K2
120nH5p61p01p03p31p81p8940MHz, ER37746-764MHzR2
D1,D2,D3=BB149
BB131 UNLESS NOTED
1.09GHz,ER37850-870MHzT
NIL D6,D7
R13=2K2
C28=1n
NIL D6,D7
R13=2K2,
120nH4p71p1p2p21p52p71.1GHz, C5900-925MHzV2
R13=2K2
120nH4p7
NOTES
0p470p471p81p22p21.15GHz, C5
TV2 REVB
3p91p1p2p71p5 3p9
33nH
120nH
L3,4,5
T 850-870MHz 1.1GHz, C5
APPLICATION2. * DEPENDS ON
COMPONENTS FITTED1. NOT ALL
NOTE:
COAXIAL
RESONATOR
CERAMIC
ETH
4p73p3 1p 1p1p51p51.1GHz, C3
C19C10C17 C9C12C11CR1
+7.4V SWITCHED
16/3/97
11/6/96
CS011-1E
E
ENGINEERING SPECTRA
(C) Copyright
GJ GJ
11
APP
APPROVED
CHECKED
DRAWN
DESIGNED
DATEBY
PCB
REF
REV
OF
SHEETDRAWING No
TITLEREVISIONDATE
TO PRE-SCALER
RF OUT
VCO CONTROL
VCO MODULATION
+7.4
+7.4V
VCO COMPONENT VALUES
FREQ RANGE
850-870MHz
BAND
925-960MHz
917-950MHz
890-915MHz
872-905MHz
824-849MHz
805-825MHzR
S T U V W X
CCT DIAGRAM, BAND
MX800 TX VCO
R TO X (746-960 MHz)
12-9-01 GJB: ADD NEW BAND
R2 746-764MHz 950MHz, C3 2p2 1p8 3p3 1p0 1p0 5p6 56nH
R13=2K2
R4=100R
1p5 1p0 4p7 1p0 1p0 3p3 120nH
D6,D7 NF
D6,D7=BB131
R13=2K2
120nH2p71p1p1.210Hz, ER37917-950MHzW 1p5 1p 3p9
D1=BB149