High-precision positioning terminals have deeply empowered fields such as automotive navigation, drone surveying, smart logistics, and emergency rescue. Their hardware architecture requires centimeter-level positioning and nanosecond-level time synchronization in complex environments. The mainstream solution adopts a combined architecture of "GNSS chipset + IMU + high-stability clock source," where the performance of the clock source directly determines positioning errors—a 1ns clock deviation leads to ~30cm positioning offset. Traditional crystal oscillators struggle with temperature drift (typically ±20ppm), while Temperature-Compensated Crystal Oscillators (TCXO) use built-in thermistors and compensation circuits to achieve ±0.5ppm frequency stability across full temperature ranges. In environments from -40°C to 85°C, frequency deviation is controlled within ±2ppm. For example, in automotive navigation, TCXO's vibration-resistant design (withstanding 50G impacts) suppresses signal jitter on bumpy roads, reducing positioning errors from meters to sub-meters and resolving drift in weak-signal scenarios like tunnels or urban canyons.
Within the 10~52MHz frequency band, TCXOs act as the "heart" of high-precision terminals, delivering three breakthrough capabilities:
· Signal Processing Foundation: At 26MHz, TCXOs enable carrier stripping and pseudo-code alignment. With phase noise ≤-150dBc/Hz@1kHz , coherent integration time extends beyond 100ms, significantly enhancing weak-signal capture.
· Environmental Adaptability: Digital compensation algorithms correct temperature drift from -40°C to 125°C , maintaining ±0.5ppm stability . This ensures centimeter-level RTK accuracy for drones in extreme cold or desert heat.
· Power-Size Balance: Wide voltage input ( 1.8V–3.3V ) and standby currents as low as 1.5mA (@26MHz) reduce energy consumption by 30%, critical for portable devices.
KDS's DSA535SGA TCXO sets new benchmarks with automotive-grade parameters:
Parameter | DSA535SGA | Industrial Peers | Advantage |
Frequency Stability | ±0.5ppm (-40°C~85°C) | ±2ppm | 300% higher precision |
Phase Noise | -155dBc/Hz@1kHz | -145dBc/Hz | 90% lower jitter |
Vibration Resistance | 50G certified | 20G | Zero failure in turbulence |
Startup Time | ≤2ms | ≤5ms | 60% faster cold start |
Size | 5.0×3.2×1.5mm | 7.0×5.0×1.8mm | 40% smaller PCB area |
The device uses all-ceramic packaging with an H-shaped cross-section and built-in EMI shielding, certified by AEC-Q200 . Its 52MHz frequency drives multi-mode satellite signals (GPS/BeiDou/GLONASS), while ≤±0.5ppm/year aging ensures calibration-free operation over the device lifecycle.
As an authorized KDS agent, Mandu Technology offers end-to-end support:
· Precision Selection: Matches frequencies/voltages with mainstream GNSS chipsets (e.g., u-blox ZED-F9P, AT6558).
· Rapid Validation: Delivers samples in 48 hours, assists in -40°C~125°C thermal cycling and 50G vibration tests .
· Mass-Production Optimization : Provides High-Precision Clock PCB Layout Guidelines and compensation curve tuning, cutting R&D cycles by 30%.
Amid BeiDou-3 global deployment and smart transportation upgrades, KDS DSA535SGA addresses three core challenges:
1. All-Scenario Stability : ±0.5ppm stability + anti-EMI design ensures continuity from polar expeditions to desert operations.
2. Localization Advantage : 20% lower cost vs. NDK, 4-week lead times , and mitigated supply-chain risks.
3. Seamless Compatibility : Pins align with 3225 standards, directly interfacing with TI/NXP MCUs—zero hardware/software redesign.
Mandu Technology’s local FAE team and smart warehousing provide 24/7 failure analysis and emergency stocking, safeguarding projects from prototyping to mass production. Choosing KDS TCXOs means redefining terminal performance with nanometer-level precision, anchoring the smart era in unparalleled spatiotemporal perception.
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.
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Website: www.manduic.com
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