Test & Measurement

IoT offering with high-integration MEMS oscillators

29th May 2019
Anna Flockett

AEL Crystals has added SiTime MEMS oscillators to its range. SiTime’s silicon-based MEMS oscillators join AEL’s existing range of products designed for the IoT. The Internet of Things (IoT) brings a new dimension to frequency control, as it uses multiple protocols (Bluetooth, ZigBee, Z-Wave, 6LoWPAN, CSR Mesh / Bluetooth Low Energy (LE), Sigfox and Thread).

Frequency control product manufacturers have to meet the demand for reliable, wireless frequency generation while, at the same time, increasing miniaturisation, reducing power consumption and providing consistent performance over a broad operating specification.

The SiT15xx 32.768kHz MEMS timing solutions are designed for mobile, IoT and wearable applications where space and power are critical.

SiTime MEMS oscillators offer high levels of integration, new packaging options and space savings, with surface mount and ultra-small chip-scale package (CSP) choices.

A particular benefit for IoT applications is the clocking for monitoring circuitry. The real-time clock (32.768kHz) is always-on, contributing to extending the life of the battery.

The MEMS oscillators are available in a 2.0x1.2mm (2012) SMD package for designs that require crystal resonator compatibility. The CSP MEMS oscillator reduces footprint by up to 80%, compared to existing 2012 SMD crystal packages and is 60% smaller than the 1610 crystal package (1.6x1.0mm).

In addition to real time clock (RTC) products, SiTime offers the SiT8021, the industry's smallest and the lowest power MHz oscillator in a 1.5 x 0.8 mm CSP. This µPower oscillator is ideal for battery-operated applications, with low operating power of 270µA (max) and ≤0.7µA in standby mode.  

The programmable technology ensures that samples are availability from stock in all frequencies.

AEL Crystals adds the SiTime MEMS oscillators to its existing range which includes: 1.6x1.6mm watch crystals (with ESR as low as 60kΩ); 1.6x1.2mm 32.768Hz oscillators; 1.6x1.0mm AT-cut crystal resonators; 1.2x1.0mm AT-cut crystal resonators and 1.6x1.2mm clock oscillators, all designed to support development for IoT applications.

AEL Crystals also supports customers with ultra-miniature TCXO, antenna and filter devices.   

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