Qorvo Introduces Ultra-Wideband 6-Bit Digital Step Attenuator Operating up to 48 GHz
Qorvo has introduced the QPC0045, an ultra-wideband SOI 6-bit digital step attenuator (DSA) designed for precision signal control across a wide range of RF and microwave systems. The attenuator operates from 0.01 to 48 GHz, providing an attenuation range of 31.5 dB with a fine 0.5 dB step size and a typical step error of less than 0.1 dB.
The QPC0045 supports multiple control interfaces, including parallel, SPI, and I²C, and enables simultaneous control of multiple DSAs through addressing or daisy-chaining. This flexibility makes it suitable for complex, multi-channel system architectures where synchronization and precision are critical.
Built using silicon-on-insulator (SOI) technology, the device offers low insertion loss and fast switching characteristics, achieving a typical switching time of 140 ns and RF settling time of 250 ns. It operates with 1.8 V logic control (up to 5.5 V max) and consumes minimal DC power, supporting efficient integration into compact, power-sensitive designs.
Housed in a 3.5 x 3.5 mm laminate-based QFN package, the QPC0045 combines wide frequency coverage, compact size, and excellent linearity – ideal for use in test and measurement equipment, communications infrastructure, and defense systems operating at microwave and millimeter-wave frequencies.
Key Specifications:
- Frequency Range: 0.01 to 48 GHz
- Attenuation Range: 31.5 dB (0.5 dB LSB)
- Step Error: 0.1 dB (typ.)
- Insertion Loss: 4.8 dB (typ. @ 35 GHz)
- RF Settling Time: 250 ns (typ.)
- Switching Time: 140 ns (typ.)
- Control Interfaces: Parallel, SPI, I²C
- Package: 3.5 × 3.5 × 0.912 mm QFN
Click here to learn more about QPC0045 6-bit digital step attenuator.
Get in touch for orders or any queries: sales@rfdesign.co.za / +27 21 555 8400
Courtesy of Qorvo
