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NDK TCXOs address temperature drift challenges in outdoor communications

As outdoor 4G modules become widely used in IoT applications such as smart security, environmental monitoring, and remote control, their communication stability is crucial for reliable data transmission. The mainstream architecture typically consists of a baseband chip, RF front-end, memory unit, and a clock circuit, where the clock component must provide an accurate frequency reference for the system. Temperature Compensated Crystal Oscillators (TCXOs), with their built-in temperature compensation mechanism, effectively suppress frequency drift caused by environmental temperature changes. Compared to standard crystal oscillators, TCXOs improve frequency stability by an order of magnitude, ensuring communication quality and signal integrity for modules operating across a wide temperature range from -40°C to 85°C.

Within outdoor 4G modules, the 19.200MHz TCXO serves as the clock source, providing the timing reference for core frequency synthesis and data transmission. Its core value lies in high frequency stability and low phase noise, maintaining a frequency deviation within ±2.5ppm even under extreme temperature fluctuations. This prevents signal synchronization errors or data packet loss caused by clock jitter. For example, in environments ranging from intense sun exposure to freezing temperatures, the TCXO can output a stable frequency through real-time compensation, enabling the module to maintain a high signal-to-noise ratio connection and support various communication standards from LTE-Cat1 to Cat4. Furthermore, its low power consumption helps extend the battery life of solar or battery-powered devices, while its compact package fits the tight layouts of modern modules, significantly enhancing system integration and reliability.

NDK's NT2016SB is a high-precision 19.200MHz TCXO featuring an ultra-compact 2.0×1.6×0.8mm package and a wide operating voltage range of 1.7V to 3.3V, meeting both industrial and automotive-grade temperature requirements. This device demonstrates significant advantages in outdoor 4G module applications:

Key Parameter

NT2016SB (NDK)

Typical TCXO Values

Core Value for Outdoor 4G Modules

Frequency Stability

±2.5ppm (-40℃~+85℃)

±5ppm~±10ppm

Ensures minimal frequency deviation under extreme temperatures, preventing base station handover failures or signal loss of synchronization.

Phase Noise

-150dBc/Hz @1kHz offset

-130dBc/Hz ~ -140dBc/Hz

Reduces signal jitter, improves SNR, and ensures high-quality video streaming and real-time data transmission.

Operating Voltage

1.7V~3.3V

3.0V~3.6V

Wide-voltage design is suitable for battery-powered scenarios and compatible with module power management circuits.

Package Size

2.0×1.6×0.8mm

3.2×2.5×1.0mm

Ultra-small footprint saves PCB space, facilitating sleek module design.

Start-up Time

< 2ms

5ms~10ms

Fast wake-up reduces standby power consumption, meeting the needs of low-power IoT devices.

The chip incorporates NDK's patented temperature compensation algorithm and high-performance crystal material, achieving precise frequency control across the full -40°C to 85°C temperature range. Its clipped sine wave output further optimizes electromagnetic compatibility (EMC). As an official authorized partner of NDK, MANDU provides comprehensive technical support for the NT2016SB, including component selection guidance, reference designs, free sample applications, and volume production assurance, helping customers quickly pass carrier certification tests.

For outdoor 4G module manufacturers, the NDK NT2016SB TCXO, with its industrial-grade reliability, low power consumption, and high integration, is an ideal choice for building highly stable communication systems. Its excellent environmental adaptability precisely meets the stringent demands of outdoor applications, helping customers enhance their product competitiveness.


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