CMD281C3
DC-22 GHz (L, S, C, X, Ku, K Band) 2-bit Digital Attenuator
End of Life announced October 31, 2023 (PCN 23-0160).
Last Time Buy: May 10, 2024
Contact your local sales representative for assistance.
Key Features
- Wideband performance
- Low insertion loss
- 6 dB attenuation range
- Pb-free RoHs compliant 3x3 QFN package
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Qorvo's CMD281C3 is a negative controlled, wideband GaAs MMIC 2-bit digital attenuator housed in a leadless 3x3 mm surface mount package. Each bit of the attenuator is controlled by a single voltage of either 0 V or -5 V. The attenuator bit values are 2 dB and 4 dB, for a total attenuation of 6 dB. The CMD281C3 has a low insertion loss of 1.5 dB at 10 GHz and the attenuation accuracy is typically 0.1 dB step error. The CMD281C3 is a 50 ohm matched design which eliminates the need for RF port matching.
Typical Applications
- Electronic Warfare (EW)
- Radar
- Space
- Satellite Communications (Satcom)
- Test & Measurement
- Phased Arrays
Product Categories
| Frequency Min(MHz) | DC |
| Frequency Max(MHz) | 22,000 |
| Insertion Loss(dB) | 1.5 |
| Attenuation Range(dB) | 6 |
| IP0.1dB(dBm) | 28 |
| IIP3(dBm) | 42 |
| Interface | Parallel |
| Bits | 2 |
| Step Size(dB) | 2 |
| Voltage(V) | -5 |
| Package Type | Ceramic QFN |
| Package(mm) | 3.0 x 3.0 |
| RoHS | Yes |
| Lead Free | Yes |
| ITAR Restricted | No |
| ECCN | EAR99 |
X-Microwave Design System
This product is available as an X-Microwave Block (X-MWblock) for evaluation.
X-MWblocks are RF and microwave "drop-in" components that can be used individually for prototyping or in production assemblies. X-MWblocks are easy to test, integrate, align, and configure to 60 GHz and beyond. No messy sweat soldering or silver epoxy processes are required. X-MWblocks are highly characterized with S-parameter models and connect with a patented solder-less interconnect technology.