Microchip Advances Space-Grade Timing with Enhanced Radiation Tolerance
Microchip Technology has introduced the Space CSAC-SA65, a Chip Scale Atomic Clock specifically engineered to provide precise timing capabilities for space systems. This new device expands Microchip's existing portfolio of atomic clocks and is designed to meet the increasing demand within the New Space market for more compact and cost-effective space hardware, particularly for short-duration missions.
The Space CSAC-SA65 offers a compact and low-power alternative to traditional, more robust radiation-hardened timing solutions. It aims to assist developers in reducing the size, weight, power, and overall cost of their systems while maintaining high accuracy. Building upon the legacy of Microchip’s Space CSAC-SA45, this enhanced version extends radiation tolerance to at least 30 kRad and operates across an extended temperature range of –40°C to +80°C.
With a power consumption of less than 120 mW and a volume under 17 cc, the device is optimized for satellite designs where size, weight, and power are critical constraints. It features built-in 1 PPS input and output capabilities, facilitating synchronization for satellite systems. Its inherent atomic stability allows for extended operational periods without constant reliance on external timing references like Global Navigation Satellite System (GNSS) signals.
Manufactured as a Commercial Off-The-Shelf (COTS) product using radiation-tolerant commercial electronic components, the CSAC-SA65 is specifically designed for Low Earth Orbit (LEO) missions. Microchip indicates that this COTS approach can lead to shorter lead times and lower overall costs compared to traditional space-grade oscillators. The CSAC-SA65 is available for purchase under part number 090-02789-007.
Specifications
| Product | Radiation Tolerance | Operating Temperature | Power Consumption | Volume | Part Number |
|---|---|---|---|---|---|
| Space CSAC-SA65 | At least 30 kRad | –40°C to +80°C | Less than 120 mW | Less than 17 cc | 090-02789-007 |
Key Features
- Chip Scale Atomic Clock designed to deliver precise timing for space systems.
- Radiation tolerance of at least 30 kRad.
- Extended operating temperature range from –40°C to +80°C.
- Power consumption of less than 120 mW.
- Volume of less than 17 cc.
- Built-in 1 PPS input capability.
- Built-in 1 PPS output capability.
- Atomic stability enables extended operation without continuous reliance on external timing references such as Global Navigation Satellite System (GNSS) signals.
- Manufactured as a Commercial Off-The-Shelf (COTS) product using radiation-tolerant commercial electronic components.
- Designed for Low Earth Orbit (LEO) missions.
- Supported by Microchip’s Clockstudio™ software for control and analysis of atomic clocks.
- Supported by a CSAC Developer Kit.
Applications
- Satellite timing and frequency control.
- Satellite clock reference.
- Assured positioning, navigation and timing (PNT).
- Satellite cross-linking.
- Satellite-to-cellular communications.
- Alternative navigation.
- Earth imaging.
Availability
The Microchip Space CSAC-SA65, part number 090-02789-007, is available for purchase. Microchip states that customers can obtain the device by contacting a Microchip sales representative or an authorised worldwide distributor.
