DDB2503-000 Skyworks Solutions, Inc., DDB2503-000 Datasheet

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DDB2503-000

Manufacturer Part Number
DDB2503-000
Description
Silicon Schottky Barrier Diodes Packaged, Bondable Chips And Beam-leads
Manufacturer
Skyworks Solutions, Inc.
Datasheet

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data sheet
Silicon Schottky Barrier Diodes: Packaged, Bondable Chips
and Beam-Leads
Applications
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Features
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l
l
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Description
Skyworks packaged, beam-lead and chip Schottky barrier detector
diodes are designed for applications through 40 GHz in Ka band.
They are made by the deposition of a suitable barrier metal on an
epitaxial silicon substrate to form the junction. The process and
choice of materials result in low series resistance along with a
narrow spread of capacitance values for close impedance control.
p-type silicon is used to obtain superior 1/f noise characteristics.
n-type silicon is also available.
Packaged diodes are suitable for use in waveguide, coaxial, and
stripline applications.
Beam-lead and chip diodes can also be mounted in a variety of
packages or on special customer substrates.
Unmounted beam-lead diodes are especially well suited for use in
MIC applications. Mounted beam-lead diodes can be easily used in
MIC, stripline or other such circuitry.
The “Universal Chips” are designed for a high degree of device
reliability in both commercial and industrial uses. The offset
bond pad assures that no mechanical damage will occur at the
junction during the wire bonding. Additionally the 4 mil bond pad
eliminates performance variation due to bonding and is ideal for
automated assembly, and improves efficiency during manual
operations as well.
The choice on n- and p-type silicon allows for the designer to opti-
mize the silicon material for the intended application.
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Doppler mixers, high-sensitivity detectors will benefit from using
the low noise characteristics of the p-type silicon.
Low conversion loss mixers and biased detectors can be
designed using standard n-type material.
Detectors
Both P-type and N-type low barrier silicon available
Low 1/f noise
Bonded junctions for reliability
Planar passivated beam-lead and chip construction
See also zero bias silicon schottky barrier detector diodes
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200847 Rev. A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 3, 2008
Applications
These diodes are categorized by TSS (Tangential Signal Sensitivity)
for detector applications in four frequency ranges: S, X, Ku, and Ka
band. However, they can also be used as modulators, high-speed
switches and low-power limiters.
TSS is a parameter that describes a diode’s detector sensitivity. It
is defined as the amount of signal power, below a one-milliwatt
reference level, to produce an output pulse whose amplitude is
sufficient to raise the noise fluctuations by an amount equal to the
average noise level. TSS is approximately 4 dB above the Minimum
Detectable Signal.
The p-type Schottky diodes in this data sheet are optimized for
low noise, in the 1/f region. They require a small forward bias (to
reduce video resistance) if efficient operation is required. Bias not
only increases sensitivity but also reduces parameter variation
due to temperature change. Video impedance is a direct function
of bias and follows the 26/l (mA) relationship. This is important to
pulse fidelity, since the video impedance in conjunction with the
detector output capacitance affects the effective amplifier
bandwidth.
Bias does, however, increase typical noise, particularly in the 1/f
region. Therefore, it should be kept at as low a level as possible
(typically 5–50 microamps). Typical voltage output versus power
input as a function of load resistance and bias is shown in Figures
1a and 1b.
1

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DDB2503-000 Summary of contents

Page 1

... Low conversion loss mixers and biased detectors can be l designed using standard n-type material. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200847 Rev. A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 3, 2008 Applications ...

Page 2

... Frequency (mv) (V) (ghz) 200–350 2 10 200–350 2 16 300–450 3 24.15 hermetic Stripline 220 DDB2503-220 DDB2504-220 DDB2265-220 (W) (V) Drawing max. min 571–006 40 3 571–006 outline Drawing 491–006 491– ...

Page 3

... A 1e–05 1e–05 BV Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200847 Rev. A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 3, 2008 Hermetic Pill 203 CDB7620-203 ...

Page 4

... V (V) F cDB7619-000 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 4 October 3, 2008 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200847 Rev. A Typical Performance Data 10000.00 ...

Page 5

... Broadband–Low Sensitivity Figure 2. Typical Video Detector Circuits Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200847 Rev. A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 3, 2008 491– ...

Page 6

... Dia. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 6 October 3, 2008 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200847 Rev. A -220 Schematic ...

Page 7

... Diameter 0.0035–0.0045 0.013 (0.33 mm) 0.011 (0.28 mm) Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 200847 Rev. A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • October 3, 2008 -109 0.43 ± ...

Page 8

... Skyworks products outside of stated published specifications or parameters. Skyworks, the Skyworks symbol, and “Breakthrough Simplicity” are trademarks or registered trademarks of Skyworks Solutions, Inc., in the United States and other countries. Third-party brands and names are for identification purposes only, and are the property of their respective owners ...

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