QTM252-20.000MCE-T

Overview

The QTM252-20.000MCE-T is a CMOS quartz oscillator in a 2.5x2.0mm ceramic package, operating at 20 MHz with 2.5V supply and ±50ppm stability over -40°C to 85°C. It features AEC-Q100 automotive certification, 1ps RMS jitter (12kHz–5MHz), 10mA max current, and 5ms startup time.

Feature Summary

• AEC-Q100 certified for automotive reliability
• Ultra-low phase jitter for high-speed timing
• Compact 2.5x2.0mm surface-mount footprint
• CMOS output with enable/disable control

Applications

• Automotive infotainment systems
• Industrial SSD reference clocks
• Bluetooth/WLAN wireless modules
• IP camera and display interfaces

Procurement Notes

Verify the manufacturer designation on official documentation, as TXC Corporation also lists this part number in their catalog. Confirm that the specific suffix 'QST' aligns with your supply chain requirements and quality agreements before finalizing procurement orders.

Selection Notes

Select this component when AEC-Q100 compliance is mandatory for automotive applications. The 2.5V supply and ±50ppm stability suit general industrial needs, while the 1ps jitter specification supports high-speed data transmission without additional filtering.

Part Context

This model belongs to the QTM252 series of low-jitter CMOS oscillators. The series offers various frequency options and voltage levels within the same compact 2.5x2.0mm package, providing design flexibility for space-constrained electronic devices.

Replacement Considerations

Consider the QTM252E variant if EMI reduction via phase modulation is required. For higher stability needs, evaluate models with ±25ppm tolerance specifications from the same product family.

FAQ

What is the maximum RMS phase jitter specification?

The maximum RMS phase jitter is 1ps, measured within the 12kHz to 5MHz integration bandwidth.

How does the enable pin function?

Pin 1 controls output enable; it defaults to enabled when floating or at high logic levels, and disables output when pulled low.