IN Brief:
- ArcadiumNano supports frequencies from 10kHz to 125MHz in packages down to 1.2 × 1.0mm.
- Larger packages operate to +125°C with AEC-Q100 Grade 1 qualification; the smallest reaches +105°C.
- Integrated spread-spectrum clocking, a 1.62–3.63V supply range, and production availability target automotive, robotics, and industrial designs.
Aeonsemi has introduced the ArcadiumNano family of all-silicon oscillators, extending its electronic-resonator timing architecture into packages as small as 1.2 × 1.0mm for automotive, robotics, industrial, and other space-constrained electronics.
The devices support output frequencies from 10kHz to 125MHz and are offered in 1.2 × 1.0mm, 2.0 × 1.6mm, 2.5 × 2.0mm, and 3.2 × 2.5mm packages. The three larger formats are specified from -40°C to +125°C and carry AEC-Q100 Grade 1 qualification, while the smallest package operates from -40°C to +105°C as an extended-industrial device.
ArcadiumNano uses Aeonsemi’s Arcadium architecture, which replaces quartz or MEMS mechanical resonators with an electronic LC resonator implemented in standard CMOS. On-chip DSP, sensing, and compensation are used to maintain output frequency as temperature and operating conditions change, allowing the timing device to be produced through a semiconductor process rather than around a separate mechanical resonator.
The Nano generation concentrates on footprint, power, and system integration rather than extending the maximum frequency of the earlier family. Aeonsemi says power consumption is reduced by up to 80% compared with previous-generation Arcadium devices, while the smallest package substantially reduces board area for clocks placed close to processors, interfaces, sensors, or communications devices.
The family operates from a continuous 1.62V to 3.63V supply and incorporates an LDO intended to improve power-supply noise rejection. That is useful in compact embedded systems where oscillators can share boards with switching regulators, processors, radios, motor-control electronics, and other sources of conducted noise, although local decoupling and power-integrity design remain part of the application.
Aeonsemi has also integrated programmable spread-spectrum clocking with centre or down spread of up to ±3.9%. Spread spectrum deliberately varies the clock frequency over a narrow range so that spectral energy is distributed rather than concentrated at the fundamental and its harmonics, potentially reducing troublesome EMI peaks without adding a separate PLL-based clock generator.
That feature is relevant to dense automotive and robotics platforms where digital interfaces, DC-DC converters, motors, radios, sensors, and multiple clock domains operate inside limited mechanical space. A timing component occupies little board area, but its harmonics can couple into traces, cables, connectors, and enclosures, turning an otherwise functional design into an EMC problem during compliance testing.
The smallest 1.2 × 1.0mm package brings a thermal trade-off because it stops at +105°C rather than the +125°C Grade 1 rating of the larger options. Designers therefore have to choose between minimum footprint and the higher temperature envelope according to component location and application requirements, particularly in automotive electronics where local temperatures can vary substantially across the vehicle.
Aeonsemi specifies ±50ppm total frequency stability across the operating temperature range and says custom frequencies can be sampled within two weeks. Samples and production quantities are available through the company and its distribution partners, moving ArcadiumNano beyond a preview device and giving engineers hardware that can be assessed against active designs.
The new family should not be treated as a universal replacement for Aeonsemi’s earlier Arcadium oscillators. Existing devices extend to 350MHz in larger formats, while ArcadiumNano tops out at 125MHz. Its proposition is instead built around smaller packages, lower power, wider high-temperature options, integrated spread-spectrum control, and a broad supply range.
Oscillator selection still depends on specifications not captured by package size alone. Jitter and phase noise, startup behaviour, ageing, supply sensitivity, output format, frequency tolerance, qualification, and EMC performance all have to match the interface being clocked. The public ArcadiumNano release emphasises total frequency stability and integration, so designers targeting particularly jitter-sensitive links will still need the full device data before making a substitution.
Aeonsemi says more than 50 million earlier Arcadium oscillators have shipped into networking, data-centre, and industrial applications, with zero reported field-return failures to date. That reliability figure is company-reported and should be read as such, but the installed base gives the new family a more established starting point than an entirely new timing technology.
ArcadiumNano ultimately addresses a familiar electronics compromise: timing devices are being asked to occupy less area and consume less power while the systems around them become faster, hotter, and harder to pass through EMC testing. The new family removes some external clock-generation circuitry and offers a wide temperature range, but the final decision will still be made on the less photogenic measurements — jitter, stability, thermal margin, and the behaviour of the complete board.
