CMD279C3
2-18 GHz (S, C, X, Ku Band) 5-bit Digital Attenuator
End of Life announced December 6, 2023 (PCN 23-0168).
Last Time Buy: June 20, 2024
Contact your local sales representative for assistance.
Key Features
- Wideband performance
- Low insertion loss
- Wide attenuation range
- Pb-free RoHs compliant 3x3 QFN package
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Qorvo's CMD279C3 is a positive controlled, wideband GaAs MMIC 5-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 0.5 (LSB), 1, 2, 4, and 8 dB, for a total attenuation of 15.5 dB. The CMD279C3 has a low insertion loss of 3.5 at 9 GHz and the attenuation accuracy is typically 0.2 dB step error. The CMD279C3 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) | 2,000 |
| Frequency Max(MHz) | 18,000 |
| Insertion Loss(dB) | 3.5 |
| Attenuation Range(dB) | 15.5 |
| IP0.1dB(dBm) | 27 |
| IIP3(dBm) | 42 |
| Interface | Parallel |
| Bits | 5 |
| Step Size(dB) | 0.5 |
| 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.