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Product Detailed Parameters
- Description：XTAL OSC VCTCXO 60.0000MHZ SNWV
- Series：QTT252
- Mfr：QST
- Package：Tape & Reel (TR)
- Base Resonator：Crystal
- Type：VCTCXO
- Frequency：60 MHz
- Function：Amplitude Control
- Output：Clipped Sine Wave
- Voltage - Supply：2.5V
- Frequency Stability：-
- Absolute Pull Range (APR)：-
- Operating Temperature：-
- Spread Spectrum Bandwidth：-
- Current - Supply (Max)：2mA
- 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)：0.031" (0.80mm)
- Supplier Device Package：-
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Overview
The QTT252-60.000M-SPX is a Voltage-Controlled Temperature Compensated Crystal Oscillator (VCTCXO) manufactured by TXC Corporation under the QST brand designation. It operates at a nominal frequency of 60.000 MHz with a clipped sine wave output format. The device utilizes a quartz crystal resonator housed in a ceramic package with surface mount dimensions of 2.50mm x 2.00mm. It functions on a 2.5V supply voltage and incorporates AFC control capabilities.
Feature Summary
- Provides precise frequency stability through integrated temperature compensation mechanisms within a compact ceramic housing.
- Delivers a clipped sine wave output signal suitable for digital clock distribution applications.
- Supports voltage-controlled tuning via an external control interface for frequency adjustment.
Applications
- Wireless communication base stations requiring stable reference frequencies
- Portable electronic devices utilizing 2.5V power domains
- Test and measurement equipment needing low-phase noise sources
Procurement Notes
Verify that the specific suffix SPX aligns with the required AFC voltage range and tolerance specifications for your design. Confirm the 2.5V supply requirement matches your system power architecture. Ensure the clipped sine wave output is compatible with downstream logic levels or amplifiers. Check datasheet limits for operating temperature ranges to guarantee performance under environmental stress conditions.
Selection Notes
Select this component when a VCTCXO topology is required rather than a standard TCXO or OCXO. The 2.5V supply voltage dictates compatibility with low-voltage digital systems. The 2.5x2.0mm footprint is critical for space-constrained PCB layouts. Consider the clipped sine wave output if the application does not require CMOS square waves.
Part Context
This part belongs to the QTT252 series of oscillators from TXC Corporation. The series includes various frequency options and output formats. The QTT252 line generally targets applications demanding high stability in small form factors. Other variants may differ in supply voltage, frequency, or output type while sharing the same physical package.
Replacement Considerations
Direct substitutes must match the 60MHz frequency, 2.5V supply, VCTCXO functionality, and 2.5x2.0mm package. Verify equivalent clipping sine wave output characteristics. Cross-reference AFC control voltage ranges to ensure functional compatibility in existing designs.
