en.Wedoany.com Reported - Microchip Technology (Nasdaq: MCHP) has introduced the space-grade DSA504RT, a radiation-tolerant, programmable six-output clock generator designed to meet the complex timing requirements of aerospace and defense applications. Spacecraft timing systems need to provide highly stable, precise signals for navigation, communications, and scientific instruments, even when GNSS signals are weak or unavailable. Designers typically rely on multiple oscillators and buffers to deliver precise frequencies to various subsystems, which increases size, weight, and complexity.
The DSA504RT simplifies timing architecture by generating multiple clean, phase-aligned frequencies from a single master source, reducing the need for multiple discrete oscillators, thereby lowering overall component count and improving system failure-in-time (FIT) rates. The device also reduces power consumption and weight, simplifies the distribution network, and keeps all subsystems synchronized even during the harshest environments and GNSS outages or interference.
The DSA504RT features an analog phase-locked loop (APLL) with spread spectrum capability, two fractional dividers and two integer dividers, along with six highly configurable output buffers. Each buffer can be configured as a differential driver (LVPECL, LVDS, or HCSL) or a pair of single-ended CMOS outputs, delivering ultra-low jitter performance as low as 200 femtoseconds (12kHz to 20MHz) and compliance with PCIe Gen 1-7 standards. This integration allows engineers to replace multiple crystals, oscillators, and buffers with a single device, improving design reliability and reducing bill-of-materials costs and design complexity.
Maamoun Abou Seido, Vice President of Microchip's Timing and Communications Division, stated that the device can provide a comprehensive clock tree solution, generating three distinct clock families and up to six different frequencies, each buffered across various selectable output drive types. The DSA504RT replaces numerous oscillators, buffers, and synthesizers, saving board space and reducing component count, thereby improving system FIT rates in high-reliability applications.
The DSA504RT is available in QFN28 and CQFP32 packages, suitable for complex aerospace and defense systems, achieving a high degree of clock architecture integration within a single chip, distributing precise timing references to subsystems based on radiation-tolerant or radiation-hardened FPGAs and MCUs. The device introduces a cost-effective space-grade component into Microchip's established clock family, delivering timing performance at a lower overall bill-of-materials (BOM) and screening cost. Customers can remain within Microchip's radiation-qualified ecosystem, leveraging its space heritage, documentation, and global technical support to accelerate the design process and reduce project risk.
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