Mixed-Signal Devices (MSD) has launched the MS4022 frequency synthesizer for next-generation radar, wireless infrastructure, phased array, and instrumentation systems. Claiming to set a new benchmark in RF performance, the new RF synthesizer offers output frequencies up to 21.6 GHz and ultra-low jitter of 25 fs RMS.
The MS4022 meets the demands for higher data rates, tighter timing precision, and greater spectral efficiency in RF, defense, and emerging 6G systems with ultra-low phase noise, wideband frequency synthesis, and programmable versatility in a compact form factor, MSD said. It uses digital synthesis to enable cleaner signals and tighter phase alignment.
(Source: Mixed-Signal Devices)
The MS4022 frequency synthesizer supports seamless locking to external reference sources, including OCXOs, GPS-disciplined oscillators (GPSDOs), and master clock trees, which enables precise synchronization with system-level timing requirements. Other features include dual coherent outputs for phase-aligned signal generation, making it well-suited for applications such as beamforming, MIMO, and multi-channel instrumentation; and integrated jitter attenuation, which enhances performance by suppressing reference noise.
The MS4022 leverages MSD’s new Virtual Crystal (XO or jitter attenuator) digital architecture that provides a high-frequency, high-performance reference frequency that is programmable, and the frequency can be changed in sub-Hz steps (parts per billion resolution). This maintains all the benefits of an Integer-N PLL and any output frequency can be generated, the company said.
Key MS4022 specifications include a frequency range from 675 MHz to 22 GHz with dual phase-coherent outputs, ultra-low jitter of 25 fs RMS (12 kHz to 20 MHz), and support for internal and external reference clocking from 1 PPS up to 750 MHz. Interfaces include USB-C for user programmability and optional SPI.
The MS4022 also features integrated control for output frequency, sweep mode, power level, and step size, simplifying the development of RF systems that require precise, wideband signal generation, and minimal phase noise distortion, the company said.
The RF synthesizer can be used in both stand-alone and distributed architectures where deterministic and high-integrity timing is critical. Key applications include FMCW, doppler, and SAR radar; phased array and MIMO RF front-ends; and 5G/6G transceiver development, as well as test and measurement systems, requiring wideband LO sources and low-noise clock generation for high-speed converters.
The MS4022, housed in a 103 × 58 × 31.2 mm footprint, is sampling now. Mixed-Signal Device will showcase the RF synthesizer at IEEE MTT-S International Microwave Symposium (IMS), June 15-20, 2025, San Francisco, at booth 361.
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