MSTM MEMS crystals reinforce the performance foundation of BeiDou-GPS dual-mode receivers.

As a core hub in the intelligent positioning field, BeiDou-GPS dual-mode receivers are widely used in autonomous driving domain controllers, drone navigation modules, intelligent inspection terminals, and industrial IoT devices. These devices need to simultaneously parse signals from the BeiDou B1/C1 and GPS L1 frequency bands to achieve nanosecond-level time synchronization and centimeter-level positioning accuracy. Their hardware design poses strict challenges in terms of clock source stability, anti-interference capability, and environmental adaptability.

In mainstream hardware solutions, the selection of the clock module directly determines the performance ceiling of the signal processing chain. Traditional quartz crystals, limited by their mechanical resonance principle, are prone to frequency offsets of more than ±20ppm in vibrating environments, and their size is difficult to break through the 2.0mm×1.6mm bottleneck. Full-silicon MEMS crystals, which reconstruct the clock generation mechanism through silicon-based semiconductor processes, have become the key to breaking this deadlock. They use bulk silicon etching technology to manufacture micro-mechanical resonators, with anti-vibration performance enhanced to withstand 1000g impacts, a working temperature range covering -40℃ to +105℃, and a size that can be reduced to 1.6mm×1.2mm, meeting the dual demands of compact layout and extreme environments in automotive and aerospace scenarios.

In the signal processing architecture of BeiDou-GPS dual-mode receivers, full-silicon MEMS crystals play a core role in distributing the reference clock. The receiver's RF front end needs to coherently demodulate dual-frequency signals, which requires the clock source to have a phase noise lower than -150dBc/Hz@10kHz to suppress carrier leakage. Full-silicon MEMS crystals, based on silicon wafer batch manufacturing processes, achieve a frequency accuracy uniformity of ±8ppm, a 60% improvement over traditional quartz devices. Their unique silicon-glass bonding packaging forms an electromagnetic shielding cavity, with frequency drift of less than ±3ppm in a 1GHz RF interference environment, significantly better than the ±15ppm performance of quartz crystals. Moreover, the zero temperature coefficient design of silicon-based materials ensures that the frequency temperature drift is only ±5ppm in the -40℃ to +85℃ range, providing a continuously stable clock reference for surveying equipment used in long-term outdoor operations and fundamentally reducing positioning errors caused by multipath effects.

The MSTM MST1011 full-silicon MEMS crystal, custom-developed for GNSS receiver scenarios, features a wide frequency band design of 32kHz to 200MHz to meet the clock input requirements of mainstream baseband chips (such as AT6558 from CAST and u-blox M10). It is designed for multi-voltage domain architectures of 3.3V/2.5V/1.8V and offers full-scene support capabilities with LVCMOS/LVDS/HCSL tri-mode output interfaces. In electrical performance tests, the device demonstrates a jitter performance of 45fs RMS and a phase noise level of -155dBc/Hz@10kHz, providing reliable low-noise clock assurance for the RF local oscillator signal chain. In terms of physical characteristics, it has passed the AEC-Q100 Grade 2 automotive qualification, capable of continuous operation under a vibration load of 10g RMS, suitable for the vibration environment of in-vehicle navigation. As the authorized agent of MSTM in China, MANDU has built a service system covering the entire R&D cycle: in the early stage, it provides clock topology optimization suggestions through the ClockTree simulation tool; in the middle stage, it opens the MST1011 sample testing laboratory (supporting Keysight signal analyzer testing); and in the later stage, it relies on the ISO9001 supply chain management system to ensure delivery schedules. R&D engineers can submit technical requirements through the MANDU website and obtain customized solutions, including phase noise curves and temperature drift test reports, within 48 hours.

With the full networking of the BeiDou-3 global system and the third-generation GPS satellites, intelligent positioning devices are accelerating towards sub-meter and centimeter-level accuracy upgrades. The full-silicon MEMS crystals from MSTM, with their revolutionary silicon-based process breakthroughs, provide a performance leap path from the clock source to the system level for BeiDou-GPS dual-mode receivers: their high-precision clock output capability can reduce signal acquisition time by more than 15%, and their anti-vibration design reduces the positioning failure probability of devices in complex working conditions to 0.01 times per thousand hours. MANDU's full-process technical support shortens the R&D cycle by 30%. For engineers engaged in GNSS terminal development, choosing the MST1011 series of full-silicon MEMS crystals is not only an upgrade in hardware performance but also a strategic investment in product reliability and market competitiveness. To accelerate the popularization of intelligent positioning devices in scenarios such as intelligent transportation and precision agriculture, the new-generation dual-mode receiver design should prioritize the introduction of this solution. At the same time, through MANDU's professional empowerment system, the efficient transformation of silicon-based innovation technology can be realized.

About Mandu Technology

Shenzhen Mandu Technology Co., Ltd. has steadfastly centered its operations on the distribution of high-performance, high-quality, and highly reliable integrated circuit products. Its portfolio encompasses memory chips, differential crystal oscillators, and MCU microcontrollers, while progressively integrating analog signal chain products. The company prides itself on delivering comprehensive and cost-effective solutions to its customers. Its products find applications across a broad spectrum of industries, including but not limited to network communication, industrial control, robotics, medical equipment, personal health, and numerous other fields.

Business: sales@manduic.com

Website: www.manduic.com

Sales: +86 150-1290-5940