ASTX-H11-24.576MHZ-T
Overview
The ASTX-H11-24.576MHZ-T is a high-precision Temperature Compensated Crystal Oscillator (TCXO) that provides a stable 24.576 MHz clock source with HCMOS output. It offers a tight frequency tolerance of +/-2.5 ppm, making it ideal for systems where timing accuracy is critical despite temperature fluctuations. This oscillator operates at a nominal 3.3V supply and is housed in a compact 3.2mm x 2.5mm SMD package.
Why Choose This Part
The primary advantage is the 2.5 ppm frequency tolerance, which is significantly more stable than standard crystal oscillators across its -30C to +75C operating range. Its 24.576 MHz frequency is specifically chosen for audio applications to allow integer division for standard sample rates. The 3.2 x 2.5mm footprint and low 17mW power consumption suit compact, battery-powered professional gear.
Applications
Getting Started
To integrate this TCXO, ensure a 0.1uF bypass capacitor is placed as close as possible to the VDD pin. When routing the 24.576 MHz HCMOS signal, keep the trace short and use a series termination resistor near the oscillator output to minimize EMI and signal reflections. Verify that the load capacitance of the receiving IC matches the HCMOS output drive capability to maintain signal integrity.
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