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Product Detailed Parameters
- Description：XTAL OSC XO 38.4000MHZ CMOS SMD
- Series：QTM252E
- Mfr：QST
- Package：Tape & Reel (TR)
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：38.4 MHz
- Function：Enable/Disable
- Output：CMOS (Low EMI)
- Voltage - Supply：3.3V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 125°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：10mA
- Ratings：-
- Mounting Type：Surface Mount
- Package / Case：4-SMD, No Lead
- Size / Dimension：0.098" L x 0.079" W (2.50mm x 2.00mm)
- Height - Seated (Max)：0.035" (0.90mm)
- Supplier Device Package：-
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Overview
The QTM252E-38.400MBM-T is a spread spectrum quartz oscillator manufactured by QST Products LLC. It operates at a nominal frequency of 38.400 MHz with CMOS output levels. The device utilizes a 3.3V supply voltage and features an enable/disable control function. It offers a frequency stability of 50 ppm and functions within a temperature range of -40°C to +125°C. The component is housed in a compact SMD2520-4P package, designed for surface mount applications requiring low electromagnetic interference.
Feature Summary
- Spread spectrum modulation capability for reduced electromagnetic interference
- Integrated enable and disable control functionality
- CMOS output signal compatibility
- Extended industrial operating temperature range
Applications
- Timing and clock generation in electronic devices
- Systems requiring low EMI performance
- Embedded circuits needing precise frequency references
Procurement Notes
Verify the specific suffix 'T' indicates tape and reel packaging configuration when sourcing. Confirm that the 38.400MHz frequency matches system requirements exactly. Ensure the 3.3V logic level aligns with target circuit interfaces. Check RoHS compliance status if environmental regulations apply to the final assembly process.
Selection Notes
Select this model when spread spectrum technology is required to minimize radiated emissions. The wide temperature range suits harsh environments. The small SMD2520 footprint aids in space-constrained designs. CMOS outputs simplify interface design compared to LVDS or HCSL alternatives.
Part Context
This part belongs to the QTM252E series of quartz oscillators from QST. The series includes various frequencies such as 24.576 MHz and 37.400 MHz. All variants share similar package dimensions and electrical characteristics, differing primarily in output frequency and specific stability ratings.
Replacement Considerations
Direct substitutes include other QTM252E series parts like QTM252E-37.400MBM-T or QTM252E-24.576MBM-T if frequency differences are acceptable. Cross-brand replacements require matching package size, voltage, and output type specifications.
