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Product Detailed Parameters
- Description：2.5X2.0 XO 1.8V 50PPM
- Series：QTM252J
- Mfr：QST
- Package：Tape & Reel (TR)
- Base Resonator：Crystal
- Type：XO (Standard)
- Frequency：48 MHz
- Function：Enable/Disable
- Output：CMOS
- Voltage - Supply：1.8V
- Frequency Stability：±50ppm
- Absolute Pull Range (APR)：-
- Operating Temperature：-40°C ~ 105°C
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：22mA
- Ratings：AEC-Q100
- 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 QTM252J-48.000MDJ-T is a standard clock oscillator manufactured by TXC Corporation (QST). It features a 48.000 MHz frequency with a stability of +/-50ppm over an operating temperature range of -40°C to +105°C. The device utilizes a CMOS output type and operates at a supply voltage of 1.8V. It is housed in a compact 2.5x2.0mm surface-mount package with four solder pads and no leads, designed for low jitter and phase noise performance.
Feature Summary
- Low jitter and phase noise characteristics
- Compact 2.5x2.0mm surface-mount footprint
- CMOS output signal compatibility
Applications
- Standard clock generation for digital circuits
- Embedded systems requiring precise timing
- Consumer electronics with space constraints
Procurement Notes
Verify the manufacturer designation carefully, as this component is listed under both TXC Corporation and QST in various databases. Confirm the specific suffix 'MDJ' aligns with the required 1.8V supply voltage and 48MHz frequency before ordering. Ensure the requested quantity matches the reel packaging specifications provided by the supplier.
Selection Notes
Select this part when a small form factor is critical for the PCB layout. The 1.8V operating voltage makes it suitable for modern low-power logic families. Consider the +/-50ppm stability requirement against the system's clock tolerance needs. The wide industrial temperature range supports operation in demanding environments without additional thermal management.
Part Context
This oscillator belongs to the QTM252J series, which is characterized by its small 2.5x2.0mm package size. The series offers various frequencies and voltage options, with the 'J' suffix typically indicating the specific package style. It serves as a direct replacement for larger oscillators where board space is limited.
Replacement Considerations
Compatible substitutes include other 48MHz CMOS oscillators in a 2.5x2.0mm package from manufacturers such as Epson or SiTime, provided they match the 1.8V supply and pinout configuration.
