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Ultra-Small, Low-Power, Low-Jitter, 1 Hz to 2.5 MHz Oscillator
LoginSiTime's TempFlat MEMS™ technology, coupled with our mixed-signal capability, enables ±50 ppm all-inclusive frequency stability in an ultra-small 1.2mm² chip-scale package. These devices use MEMS resonators that are manufactured using the latest generation of EpiSeal™ technology which hermetically seals the resonator, making it impervious to all small-molecule gases. Additionally, the SiT1581 has a high shock and vibration survivability. Typical supply current is only 6.0 μA at 100 kHz and only 13 μA at 1MHz. And unlike standard oscillators, the SiT1579 is factory programmable between 1 Hz and 2.5 MHz, enabling new architectural options with its wide frequency range.
| "Specs" | "Value" |
|---|---|
| Oscillator Type | Hz to MHz XO |
| Frequency | 1 Hz to 2.5 MHz |
| Frequency Stability (ppm) | ±50 |
| Output Type | LVCMOS |
| Operating Temperature Range (°C) | -20 to +70, -40 to +85 |
| Voltage Supply (V) | 1.62 to 3.63 |
| Package Type (mm²) | 1.5x0.8 |
| Features | Low jitter, Robustness against shock, vibration, and small molecule gases |
| Availability | Production |
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Image: SiT1581 5-pin 1508 chip-scale package, top & bottom
Factory-programmable frequency range from 1 Hz to 2.0 MHz
- Creates new architectural alternatives for ultra-low power frequencies
Ultra-low power: 6.0 µA (typ.) at 100 kHz, 13 µA at 1 MHz
- Maximizes battery life
Smallest footprint in chip-scale (CSP): 1.5 x 0.8 mm
- Saves board space
±50 ppm frequency stability all-inclusive over temperature
- Improved local timekeeping and improved system power with less dependency on network timekeeping updates
Robust against shock, vibration, and small molecule gasses
- Industrial sensors
- Industrial data loggers
- Portable data loggers
- Industrial logistics trackers
- Industrial automation
- Oil and gas exploration
Reliability Calculator – Get FIT/MTBF data for various operating conditions
Time Machine II Programmer – Program frequency, voltage, stability & more
| Resource Name | Type |
|---|---|
| Time Machine II MEMS Oscillator Programmer | Product Briefs |
| AN10006 Best Design and Layout Practices | Application Notes |
| AN10025 Reliability Calculations for SiTime Oscillators | Application Notes |
| Timing Solutions for Mobile & IoT | Brochures/Fliers |
| Silicon Replaces Quartz (Japanese Subtitles) | Videos |
| Silicon Replaces Quartz (Chinese Subtitles) | Videos |
| SiT1581 Datasheet | Datasheets |
| SiTime MEMS First 工艺 | Technology Papers |
| SiTime MEMS First 工艺 | Misc. Resources |
| AN10073 How to Setup a Real-time Oscilloscope to Measure Jitter | Application Notes |
| AN10071 Computing TIE Crest Factors for Telecom Applications | Application Notes |
| AN10070 Computing TIE Crest Factors for Non-telecom Applications | Application Notes |
| AN10072 Determine the Dominant Source of Phase Noise, by Inspection | Application Notes |
| AN10074 Removing Oscilloscope Noise from RMS Jitter Measurements | Application Notes |
| Blood Pressure Monitors | Application Briefs |
