1
Surface Mount Low Power Step Recovery Diodes
Features
• Surface Mount Packages (SOT-23,SC-79)
• Low transition times
• SPC Process for Superior C-V Repeatability
• Tape and Reel Packaging
• Designed for Commercial Wireless Applications
• Also Offering RoHS Compliant Equivalent Parts
Description
The MA44700 series of Step Recovery diodes is
designed for use in low power multipliers with output
frequencies of up to 5 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 cur-
rentsource until all the charge is extracted, then it
will “snap” to a higher impedance. This causes a
voltage
circuit of the multiplier. Step Recovery diodes make
excellent high order multipliers such as comb gen-
erators. They are also useful as efficient moderate
power X2-X4 multipliers.
Applications
The MA44700 series step recovery are useful for
surface mount low power applications.
ADVANCED: Data Sheets contain information regarding a product MA-COM Technical Solutions is
considering for development. Performance is based on target specifications, simulated results, and/
or prototype measurements. Commitment to develop is not guaranteed.
PRELIMINARY: Data Sheets contain information regarding a product MA-COM Technical Solutions
has under development. Performance is based on engineering tests. Specifications are typical.
Mechanical outline has been fixed. Engineering samples and/or test data may be available. Commit-
ment to produce in volume is not guaranteed.
MA44700 Series
1.
2.
MA44767-287T
MA44768-287T
MA44769-287T
Part Number
(non-RoHS)
The prefix defines package style, configuration and packaging information. Contact representative for complete part identification.
Capacitance @ 1 MHz
pulse
1
MAVR-044767-0287AT
MAVR-044768-0287AT
MAVR-044768-12790T
MAVR-044769-12790T
RoHS Compliant
Part Numbers
to
MA144769-287T
form
1
in
the
Min.
3.0
1.6
0.8
f=1 MHz,
V
R
(pF)
=6.0 V
impulse
C
T
2
Max.
4.5
2.4
1.2
Ir =10 uA
Reverse
Voltage
Min.
(V)
8
7
6
5
4
3
2
1
0
30
30
30
MA-COM Technical Solutions and its affiliates reserve the right to make changes to the
product(s) or information contained herein without notice.
Absolute Maximum Ratings
@ T
1. Operation of this device above any one of these parameters
2. Please refer to application note M538 for surface mounting
0
• North America Tel: 800.366.2266 / Fax: 978.366.2266
• Europe Tel: 44.1908.574.200 / Fax: 44.1908.574.300
• Asia/Pacific Tel: 81.44.844.8296 / Fax: 81.44.844.8298
may cause permanent damage.
instructions
Visit www.macom.com for additional data sheets and product information.
Operating Temperature
A
Storage Temperature
Forward Bias Current
Typical Capacitance vs. Bias (V) freq=1MHz
=+25 °C (Unless Otherwise Noted)
Power Dissipation
Reverse Voltage
Parameter
5
Nominal
Typical
Carrier
250-500
75-225
20-50
(nS)
10
Transition
Time
Bias(V)
Max
(pS)
600
250
150
15
Absolute Maximum
M/A-COM Products
-65 °C to +125 °C
-65 °C to +125 °C
Nominal
20
(GHz)
Input
0.05-5
0.1-1
0.1-1
1,2
250 mW
50 mA
MA44768
MA44769
MA44767
30V
25
Nominal
Output
0.5-1.5
0.5-2.5
(GHz)
Rev. V6
1-5
30