MA43543 반도체 회로 부품 판매점
Step Recovery Diodes
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 Tyco |
Step Recovery
Diodes
Features
q Low Transition Times
q Tight Capacitance Ranges
q High Voltage and Low Thermal Resistance
for Higher Input Power
q Surface Mount Package Available (SOT-23)
Description
The MA44600 series of Step Recovery diodes is designed
for use in low and moderate power multipliers with out-
put frequencies of up to 20 GHz. These Step Recovery
diodes generate harmonics by storing a charge as the
diode is driven to forward conductance by the positive
voltage of the input signal. When the signal reverses
polarity, this charge is extracted. The Step Recovery diode
will appear as a low impedance current source until all the
charge is extracted, then it will “snap” to a higher imped-
ance. This causes a voltage pulse to form in the impulse
circuit of the multiplier. Step Recovery diodes make
excellent high order multipliers such as comb generators.
They are also useful as efficient moderate power X2- X4
multipliers.
Applications
High Order Narrow Band Moderate Power Multipliers
(MA44600 series)
Comb Generators (MA43592, MA43543)
High Power Circuit Tested Multiplier (MA43000 Series)
Surface Mount Low Power Multipliers (MA44700 Series)
MA43000, MA44600,
MA44700 Series
V3.00
Specifications Subject to Change Without Notice.
M/A-COM, Inc.
North America: Tel. (800) 366-2266
Fax (800) 618-8883
s Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
1
s Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
Step Recovery Diodes
Electrical Specifications @ 25°C
Snap Varactors
Model1
Number
Minimum2
Reverse
Voltage VR
(Volts)
Junction3
Capacitance
Range (Cj)
Min./Max.
(pF)
MA44621A
MA44621B
MA44621C
MA44622A
MA44622B
MA44631A
MA44631B
MA44631C
MA44641A
MA44641B
MA44641C
MA44652A
MA44652B
MA44652C
MA44663A
MA44663B
MA44663C
MA44663D
20
20
20
20
20
30
30
30
40
40
40
50
50
50
60
60
60
60
0.2 / 0.3
0.3 / 0.4
0.4 / 0.5
0.5 / 0.7
0.7 / 0.9
0.3 / 0.5
0.5 / 0.7
0.7 / 0.9
0.4 / 0.6
0.6 / 0.8
0.8 / 1.1
0.5 / 0.7
0.7 / 0.9
0.9 / 1.1
0.7 / 0.9
0.9 / 1.1
1.1 / 1.5
1.5 / 2.0
Notes:
1. When ordering, specify the desired case style by adding the case des-
ignation as a suffix to the model number. Case styles for the MA44600
series are 30, 91 and 93. To order in chip form, add the suffix “134” to
the model number. The nominal chip size for the MA44600 series is
15 mils.
MA43000, MA44600, MA44700 Series
V3.00
Minimum
Lifetime
10 mA/6 mA
TI (ns)
7
7
7
7
7
8
8
8
12
12
12
15
15
15
20
20
20
20
Transition Time TS4
(ps)
Nominal
Max.
50 100
50 100
50 100
50 100
50 100
70 100
70 100
70 100
90 150
90 150
90 150
150 200
150 200
150 200
250 300
250 300
250 300
250 300
2. Reverse voltage (VR) is measured at a reverse bias current of 10 µA.
3. Junction capacitance is measured at a reverse voltage of 6 volts and a
frequency of 1 MHz.
4. Transition time is measured between 20% and 80% points on the volt-
age recovery trace. Test conditions are +10 mA and -10 volts.
Case Styles (See appendix for complete dimensions)
30 91 93 134
Specifications Subject to Change Without Notice.
2
North America: Tel. (800) 366-2266
Fax (800) 618-8883
s Asia/Pacific: Tel. +81 (03) 3226-1671
Fax +81 (03) 3226-1451
M/A-COM, Inc.
s Europe: Tel. +44 (1344) 869 595
Fax +44 (1344) 300 020
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전화번호 : 051-319-2877
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