CDC7630 SKYWORKS | Alldatasheet
Document overview
- Manufacturer or author: powersgm
- PDF pages: 8
Technical content
Features
High sensitivity Low video impedance Packages rated MSL1, 260 C per JEDEC J-STD-020)
Description
The Isolink packaged, beam-lead and zero-bias Schottky barrier detector diodes are designed for applications through the K band. The choice of barrier metal and process techniques results in a group of diodes with a wide selection of video impedance ranges. Packaged diodes are suitable for use in waveguide, coaxial, and stripline applications. The CDC and DDC series of Schottky diodes are especially well suited for use in Microwave Integrated Circuit (MIC) applications.
Applications
The CDC and DDC series of zero-bias Schottky diodes are designed for detector applications through 26 GHz. They require no bias and operate efficiently even at tangential signal power levels. Since they require no bias, noise is at a minimum. A low video impedance means a short R-C time constant and, therefore, wide video bandwidth and excellent pulse fidelity. As power monitors, these diodes may also be used to directly drive metering circuits even at low power input levels. These diodes are categorized by Tangential Signal Sensitivity (TSS), voltage output, and video impedance for detector applications. TSS is a parameter that best describes the use of a diode as a video detector. It is defined as the amount of signal power, below a one milliwatt reference level, required to produce an output pulse with an amplitude sufficient to raise noise fluctuations by an amount equal to the average noise level. TSS is approximately 4 dB above the minimum detectable signal. Voltage output is another useful parameter since it can be used in the design of threshold detectors and power monitor circuits. Since voltage output is a function of the diode’s video impedance, a different minimum value is specified for each video impedance range. The absolute maximum ratings for the CDC and DDC series of Schottky diodes are provided in Table 1. Electrical and physical specifications are provided in Table 2. SPICE model parameters for the CDC7630/7631 series are defined in Table 3. Typical performance characteristics are shown in Figures 1 through 8. Typical video detector circuits are shown in Figure 9. The multi-octave, high-sensitivity circuit would be used in Electronic Countermeasures (ECM) and similar applications. An RF matching structure that presents maximum power at the diode junction must be incorporated to ensure maximum sensitivity. The broadband low-sensitivity circuit would be used where a low input VSWR is required. In this circuit, low VSWR is accomplished by the use of the 50 Ω terminating resistor. Sensitivity, however, is degraded by typically 10 dB from the multi-octave, high-sensitivity circuit. The most common use for this circuit is in a broadband, flat detector used primarily in the laboratory. Package dimensions are provided in Figures 10 through 12.
Table 1. CDC7630/7631 and DDC2353/2354 Diode Series Absolute Maximum Ratings1 set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device. ESD HANDLING: Although this device is designed to be as robust as possible, electrostatic discharge (ESD) can damage this device. potentials of several kilovolts on the human body or equipment, which can discharge without detection. Industry-standard ESD handling precautions should be used at all times. Table 2. CDC7630/7631 and DDC2353/2354 Diode Series Electrical Specifications1 1 Performance is guaranteed only under the conditions listed in this table.
Table 4. SPICE Model Parameters
DATA SHEET • CDC AND DDC SERIES: ZERO BIAS SCHOTTKY DIODES Phone [408] 946-1968 • Fax [408] 946-1960 • hirel.sales@skyworksinc.com • www.skyworksinc.com 203256C • Isolink Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 28, 2019 8 Copyright © 2014, 2017, 2019 Isolink, Inc. All Rights Reserved. Information in this document is provided in connection with Isolink, Inc. (“Isolink”), a wholly-owned subsidiary of Skyworks Solutions, Inc. These materials, including the information contained herein, are provided by Isolink as a service to its customers and may be used for informational purposes only by the customer. Isolink assumes no responsibility for errors or omissions in these materials or the information contained herein. Isolink may change its documentation, products, services, specifications or product descriptions at any time, without notice. Isolink makes no commitment to update the materials or information and shall have no responsibility whatsoever for conflicts, incompatibilities, or other difficulties arising from any future changes. No license, whether express, implied, by estoppel or otherwise, is granted to any intellectual property rights by this document. Isolink assumes no liability for any materials, products or information provided hereunder, including the sale, distribution, reproduction or use of Isolink products, information or materials, except as may be provided in Isolink Terms and Conditions of Sale. THE MATERIALS, PRODUCTS AND INFORMATION ARE PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, INCLUDING FITNESS FOR A PARTICULAR PURPOSE OR USE, MERCHANTABILITY, PERFORMANCE, QUALITY OR NON-INFRINGEMENT OF ANY INTELLECTUAL PROPERTY RIGHT; ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED. ISOLINK DOES NOT WARRANT THE ACCURACY OR COMPLETENESS OF THE INFORMATION, TEXT, GRAPHICS OR OTHER ITEMS CONTAINED WITHIN THESE MATERIALS. ISOLINK SHALL NOT BE LIABLE FOR ANY DAMAGES, INCLUDING BUT NOT LIMITED TO ANY SPECIAL, INDIRECT, INCIDENTAL, STATUTORY, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOST REVENUES OR LOST PROFITS THAT MAY RESULT FROM THE USE OF THE MATERIALS OR INFORMATION, WHETHER OR NOT THE RECIPIENT OF MATERIALS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. Customers are responsible for their products and applications using Isolink products, which may deviate from published specifications as a result of design defects, errors, or operation of products outside of published parameters or design specifications. Customers should include design and operating safeguards to minimize these and other risks. Isolink assumes no liability for applications assistance, customer product design, or damage to any equipment resulting from the use of Isolink products outside of stated published specifications or parameters. Isolink is a trademark of Isolink Inc. in the United States and other countries. Skyworks and the Skyworks symbol 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.