SD1490 查看數據表（PDF） - STMicroelectronics
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SD1490 Datasheet PDF : 6 Pages
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TEST CIRCUIT
SD1490
C1
:
C2, C’2 :
C3, C12 :
C4, C5 :
C6
:
C7
:
C8
:
C9
:
C10, C’10 :
C11, C’11 :
1.5pF ATC 100A
100pF ATC 100A
.5 - 4.5pF Airtronic Adjustable
2.7pF ATC 100A
10pF ATC 100A
18pF ATC 100A
6.8pF ATC 100A
1.5pF ATC 100A + 1.8pF ATC 100A
100pF ATC 100A
120pF ATC 100A
Cd1
: 100pF ATC 100A
Cd2
: 47pF AATC 100B + 1000pF ATC 100B
Cd3
: 500µF 25V
Cd4
: 100pF ATC 100A
Cd5
: 22µF 35V
Cd6
: 1000pF ATC 100B
Cd7
: 47µF 63V
L
: Coaxial Cable Zo = 50Ω Length λ/4 at 680 MHz
L1
: Printed Transmission Line Zo = 25Ω Length 12mm
L2
: Printed Transmission Line Zo = 25Ω Length 12mm
L3
: Printed Transmission Line Zo = 25Ω Length 10mm
L4
: Printed Transmission Line Zo = 25Ω Length 9mm
L5
: Printed Transmission Line Zo = 25Ω Length 5.5mm
L6
: Printed Transmission Line Zo = 25Ω Length 6mm
L7
: Printed Transmission Line Zo = 25Ω Length 14.5mm
L8
: Printed Transmission Line Zo = 25Ω Length 10mm
L9
: Printed Transmission Line Zo = 25Ω Length 7mm
R1 : 150 Ω 1/4 W
R2 : 51 Ω 1/4 W
S1, S’1 :
S2 :
S3 :
S4 :
10 Turns of .35mm Wire on 2mm Diameter
9 Turns of .35mm Wire on R1
2 Turns of .8mm Wire on 4mm Diater
5 Turns of .8mm Wire on R2
Board: Er = 2.55, .020” Thick
TEST CIRCUIT LAYOUT
5/6
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