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Motorola Electronic Components Datasheet

1N4388 Datasheet

Silicon varactor diode

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1N4388 (SILICON)
(MV1806)
CASE 44
(00·4)
Silicon varactor diode for high-frequency harmonic
generation applications.
cathode connected to stud
MAXIMUM RATINGS
Rating
Reverse Voltage
Forward Current
RF Power Input
Total Device Dissipation @ TC = 75°C
Derate above 75° C
Operating and Storage Junction
Temperature Range
Symbol
VR
IF
P.m
PD
T J , T stg
Value
100
1.0
25
10
0.10
Unit
Vdc
Amp
Watts
Watts
W;OC
-65 to +175
°c
ELECTRICAL CHARACTERISTICS (TA = 25"C unless otherwise noted)
Characteristic
Reverse Breakdown Voltage
(IR = 10 !lAdc)
Reverse Current
(VR =75Vde)
(VR =75Vde, T A =150°C)
Diode Capacitance
(VR = 6.0 Vde, f =l.OMHz)
(VR =90Vde, f=l.OMHz)
Series Resistance
(VR = 6.0 Vdc, f = 50 MHz)
Symbol
BVR
IR
CT *
RS
Figure of Merit
(VR = 10 Vdc, f = 50 MHz)
(VR = 90 Vdc, f = 50 MHz)
FUNCTIONAL TESTS
Power Output
Efficiency
Doubler Circuit
(Figure 1)
Pin = 20 W, fin = 500 MHz,
fout = 1000 MHz
Q
Pout
1)
Min
100
-
-
-
-
-
200
1000
11.0
55
Typ
150
0.5
-
10
5.0
1.2
300
-
12.0
60
Max Unit
Vdc
-
!lAde
2.0
100
pF
20
10
Ohms
2.0
-
-
-
- Watts
-%
1-99


Motorola Electronic Components Datasheet

1N4388 Datasheet

Silicon varactor diode

No Preview Available !

1N4388 (continued)
3000
2000
1000
SOO
I
i!; 200
tl
~ 100
d
FIGURE OF MERITversus REVERSE VOmGE
I=ISO ~HZ
,.. 2~oC:,...-
V'
/ '"
- -"8soc
50
'l
20
10
1.0 2.0
s.O 10 20
VR, REVERSE VOLTAGE (VOLTS)
50
100
POWER OUTPUTversus OUTPUT FREQUENCY
DOUBLING (X2)
20
IS r-1-1-
~
i; 10
p!, ~oJ
P,,~ lOW
¥,.~sw
r--1-1-
~
r""--
p,. 3W
o
100 200 300 400 500 700 10001200
I, OUTPUT FREQUENCY (MHz)
TRIPLING (X3)
0
-s r-
r-!'" ~ 20W
O r-I-........t-I-t--
P" lOW
S II
P,,-SW
Pi, 3W
0
100 200 300 400 SOO 700 1000 1200
I, OUTPUT FREQUENCY (MHz)
QUADRUPLING (X4)
0
s
......N:ri
0
r--r-....r-..,
- --s
~
p:,_~WI
.......... ........
1--
0 Pill 3W
100 200 300 400 500 700 1000 1200
I, OUTPUT FREQUENCY (MHz)
FIGURE 1 - HARMONIC DOUBLER EFFICIENCY TEST CIRCUIT
r - - - - - - - -500 MHz COAX CAVITY - - ,
r - - - - - - - - -1000 MHz COAX CAVITY - - - ,
o--f1500 MHz
Ilift 50 ohms.
P,,20W
I, - + ' - - - -....- - + - - - + - 1 ,
I MEGOHM
,
i( 01000 MHz
'I,
_..JL, ____ _
I 0.5·12pF
I,L __________ J,I
1-100


Part Number 1N4388
Description Silicon varactor diode
Maker Motorola
Total Page 2 Pages
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