Industrial IoT Timing Solution

Application

Description

Complete timing solution for industrial IoT applications featuring low-power TCXOs, robust SAW filters, and high-gain LNAs for reliable wireless connectivity.

Core Advantages

Proven reliability in industrial environments
Optimized for battery-powered sensors
Extended wireless communication range
Complete timing and RF solution

Recommended Bill of Materials (BOM)

Item Part Number Description Quantity Datasheet
1 TCXO3225-26M-05 26MHz ±0.5ppm TCXO for precision clocking 1 📄 Download
2 SF2012-915M 915MHz SAW filter for RF selectivity 1 📄 Download
3 LNA2012-24G 2.4GHz LNA for RF amplification 1 📄 Download
4 10μF Ceramic Capacitor Decoupling capacitor for TCXO VCC 2 📄 Download
5 100nF Ceramic Capacitor RF bypass capacitor 3 📄 Download

Applications

Industrial wireless sensors
Smart factory monitoring
Asset tracking systems
Environmental monitoring
Predictive maintenance

Technical Specifications

Frequency Stability
±0.5ppm (-40°C to +85°C)
R F Bandwidth
26MHz @ 915MHz center
L N A Gain
15dB with 1.8dB NF
Operating Temperature
-40°C to +85°C
T C X O Current
2.5mA max
L N A Current
5mA active, <1μA shutdown

Customer Success Stories

Smart Factory Solutions Inc.

Industrial Automation |

Challenge

Needed reliable wireless sensors for factory monitoring with 5-year battery life

Solution

Implemented Dapu Industrial IoT Timing Solution with TCXO, SAW filter, and LNA

Results

Achieved 99.5% communication reliability and 7-year battery life in harsh factory environment

Environmental Monitoring Systems

Environmental Monitoring |

Challenge

Required long-range wireless sensors for remote environmental monitoring stations

Solution

Used Dapu solution with high-gain LNA for extended range

Results

Extended communication range from 500m to 2km, enabling fewer gateway installations

FAE Expert Insights

R

Robert Zhang

Senior FAE - Industrial Solutions

Professional Insights

This Industrial IoT Timing Solution addresses the unique challenges of industrial wireless deployments. The TCXO3225-26M-05 provides the frequency stability needed for reliable wireless communication, while the SF2012-915M SAW filter ensures clean spectrum usage in crowded industrial environments. The LNA2012-24G significantly extends range, which is critical when sensors are distributed across large factory floors. Key design tips: Place the TCXO close to the transceiver IC with short, matched traces. Use proper grounding and shielding for the RF section. Implement power sequencing to avoid current spikes. For antenna matching, follow the reference design or consult with LiTong FAEs for custom optimization.

Key Takeaways

  • TCXO placement critical for clock signal integrity
  • Proper RF grounding essential for performance
  • LNA shutdown mode saves significant power
  • Antenna matching affects range significantly

Decision Framework

Solution Selection Decision Framework
Steps:
  1. Define wireless protocol and frequency band
  2. Determine required communication range
  3. Evaluate environmental conditions
  4. Calculate power budget and battery life
  5. Select appropriate TCXO, filter, and LNA combination

Ready to Implement This Solution?

Contact our FAE team for design support and quotes

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Frequently Asked Questions

What wireless protocols are supported?

This solution supports multiple wireless protocols: (1) LoRaWAN - 915MHz ISM band for long-range, low-data-rate applications. (2) Zigbee/Thread - 2.4GHz for mesh networking applications. (3) Proprietary ISM - Custom protocols in 433MHz, 868MHz, or 915MHz bands. (4) WiFi HaLow - Sub-GHz WiFi for IoT. The TCXO provides stable clocking for all protocols, while SAW filters can be selected for specific bands. LNAs are available for both sub-GHz and 2.4GHz bands. Contact LiTong for protocol-specific recommendations and reference designs.

Contact LiTong for wireless protocol selection guidance.

How do I maximize battery life?

Battery life optimization strategies: (1) Duty Cycling - Keep radio off when not transmitting/receiving. Use the TCXO standby mode (<10μA) between transmissions. (2) LNA Shutdown - Disable LNA when not receiving to save 5mA. (3) Transmission Power - Use minimum power needed for reliable communication. (4) Data Aggregation - Batch sensor readings to reduce transmission frequency. (5) Sleep Modes - Put microcontroller in deep sleep between measurements. (6) Power Supply - Use high-efficiency DC-DC converters. Example: With 1-minute sampling, 100ms transmission time, and proper power management: 5-7 years on 2400mAh battery. LiTong provides power analysis tools and optimization guidance.

Contact LiTong for battery life optimization support.

What is the maximum communication range?

Communication range depends on multiple factors: (1) Frequency Band - Sub-GHz (433/915MHz) provides longer range than 2.4GHz. (2) LNA Gain - The LNA2012-24G provides 15dB gain, extending range by 40-60%. (3) Antenna - High-gain antennas significantly extend range. (4) Environment - Open field vs. indoor/obstructed. (5) Data Rate - Lower rates provide longer range. Typical ranges with this solution: Urban environment: 500m-1km, Suburban: 1-2km, Open field: 2-5km, Indoor: 50-200m (depending on walls). For extended range, consider using external high-gain antennas or implementing mesh networking. LiTong can provide range estimation for your specific application.

Contact LiTong for range estimation and optimization.

How do I handle interference in industrial environments?

Industrial interference mitigation: (1) Frequency Selection - Use SAW filters for sharp bandpass filtering. The SF2012-915M provides 35dB rejection at ±50MHz. (2) Shielding - Use metal shields for RF sections to prevent EMI. (3) Grounding - Implement proper ground planes and minimize ground loops. (4) Spacing - Keep RF circuits away from motor drives and power electronics. (5) Protocol Selection - Use spread spectrum or frequency hopping protocols. (6) Filtering - Add ferrite beads on power lines to conducted noise. (7) Testing - Conduct site surveys to identify interference sources. This solution's high-selectivity SAW filter and stable TCXO provide excellent immunity to interference. LiTong offers EMI/EMC consulting services.

Contact LiTong for interference mitigation support.

Can this solution be used for outdoor applications?

Yes, this solution is suitable for outdoor applications with proper packaging: (1) Temperature Range - Components rated for -40°C to +85°C industrial range. Extended range (-40°C to +105°C) available for some products. (2) Humidity - Use conformal coating on PCB for moisture protection. (3) Enclosure - IP65 or higher rated enclosure recommended for outdoor use. (4) Antenna - Use weatherproof external antennas. (5) Power - Solar panel with battery backup is common for outdoor sensors. (6) Mounting - Ensure secure mounting for wind resistance. (7) Maintenance - Design for remote diagnostics to minimize site visits. This solution has been deployed in outdoor environmental monitoring, agricultural, and smart city applications. LiTong provides outdoor deployment guidelines.

Contact LiTong for outdoor application design support.