Abracon ATXK-H15 32.768 kHz Crystal Oscillator

Introduction

The Abracon ATXK-H15-E-32.768KHZ-E50-T3 is a miniature temperature-compensated crystal oscillator designed to provide a precise 32.768 kHz timing reference. Its low power consumption, CMOS output, and compact SMD footprint make it well suited to battery-operated and space-constrained electronic designs.

Part Description

The ATXK-H15 is a temperature-compensated crystal oscillator (TCXO) operating at the standard 32.768 kHz frequency commonly used for real-time clock (RTC) functions. Temperature compensation helps maintain timing accuracy across changing environmental conditions, with specified frequency stability of ±5 ppm.

Housed in a very small 1.6 mm × 1.2 mm × 0.57 mm surface-mount package, the device is intended for modern compact PCB layouts. It supports common low-voltage supply options including 1.8 V, 2.5 V, and 3.3 V, and provides a CMOS output suitable for direct connection to compatible logic, microcontrollers, RTC circuits, and timing inputs.

The oscillator is rated for operation from -40 °C to +85 °C, allowing use in both consumer and industrial temperature environments.

Applications

Potential applications include:

• Real-time clock frequency references
• Battery-backed timing circuits
• Wearable electronics
• Smart watches and fitness trackers
• IoT sensors and wireless nodes
• Portable medical devices
• Handheld consumer electronics
• Data loggers
• Low-power microcontroller systems
• Industrial monitoring equipment
• Timing references for embedded controllers
• Smart meters and utility monitoring devices

Industries

The ATXK-H15 can be used across a range of industries, including:

• Consumer electronics
• Internet of Things
• Industrial automation
• Medical electronics
• Telecommunications
• Smart home technology
• Energy and utilities
• Building automation
• Wearable technology
• Portable instrumentation
• Security and access-control systems
• Environmental monitoring

Usage Ideas

1. Low-Power Environmental Logger
   Use the oscillator as an accurate RTC reference in a battery-powered temperature, humidity, or air-quality logger.

2. Wearable Activity Tracker
   Integrate it into a compact wearable device to maintain timekeeping during sleep modes while minimizing power consumption.

3. Industrial Sensor Node
   Pair it with a low-power microcontroller and wireless module to schedule periodic measurements and communications in an industrial IoT sensor.

Conclusion

The Abracon ATXK-H15 32.768 kHz crystal oscillator provides a compact and accurate timing solution for RTC-based embedded systems. Its ±5 ppm stability, low-current design, CMOS output, wide operating temperature range, and miniature SMD package make it a practical choice for portable, connected, consumer, and industrial electronics.