Oscilloscopes & Spectrum Analyzers


As technologies advance across all sectors, test and measurement equipment is called upon to analyze and validate device performance with increasing precision. This requires an accurate and robust timing reference to measure against. SiTime MEMS timing solutions provide the stability engine needed for clock synthesis. In addition to proving better stability and lower wander, SiTime MEMS-based TCXOs and OCXOs have better aging specifications, extending equipment accuracy over the long term and increasing its value.

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SiTime MEMS Timing Benefits

Complete MEMS clock tree

Precision MEMS OCXO

Stratum 3 Super-TCXO

10 Output Clock Generator

Most robust in real world conditions

Stable over a lifetime: ±70 ppb over 10 years

I2C monitoring for simplified compensation

Integrated MEMS saves space, simplifies BOM

Easy to use, built to last

Custom configured solution

No quartz reliability issues

1 billion hour MTBF

Typical Vector Signal Analyzer Block Diagram


Digital Oscilloscope Block Diagram

MEMS Timing Solutions for Oscilloscopes & Spectrum Analyzers

Devices Key Features Key Values
Single Ended Oscillator
SiT8208  1 to 80 MHz
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SiT8209  80 to 220 MHz
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  • Low jitter: < 0.5 ps RMS [1]
  • ±10 ppm to 50 ppm frequency stability
  • Any frequency output
  • FlexEdge™ configurable output drive strength
  • 1.8 V, 2.5 V, 3.3 V
  • Better frequency and jitter margin enhance system stability and robustness
  • Easy availability of any device configuration
  • Minimizes EMI from the oscillator
Differential Oscillator
SiT9366  1 to 220 MHz
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SiT9367  220 to 725 MHz
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  • Low jitter: 0.23 ps RMS [1]
  • 2.5 to 3.3 V
  • -40°C to 105°C
  • 3.2 x 2.5 mm package
  • Meets demanding jitter requirements
  • Small PCB footprint, easier layout
  • Easy design due to flexibility
  • MEMS reliability
SiT3921  1 to 220 MHz
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SiT3922  220 to 625 MHz
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  • Digital frequency control
  • 1 ppb resolution
  • Eliminates need for external DAC to control a VCXO
  • Better accuracy, lower noise due to digital control
SiT5356  1 to 60 MHz
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SiT5357  60 to 220 MHz
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  • Low jitter: 0.31 ps RMS [1]
  • ±0.1 ppm stability
  • 1 ppb/°C 
  • -40°C to 105°C
  • Minimizes link drops due to shock, vibration, or temperature change
SiT57xx  1 to 60 MHz
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  • ±0.005 ppm stability
  • -40°C to +85°C
  • I2C digital frequency tuning eliminates board noise
  • 10 times better dynamic stability (150 ppt/°C ΔF/ΔT), resistant to airflow and thermal shock
Clock Generator
SiT9514x  8 kHz to 2.1 GHz​
  • up to 11 outputs
  • 125 fs RMS [1] phase jitter
  • Integration and performance

1 12 kHz to 20 MHz integration range

MEMS Timing Outperforms Quartz

Better Stability

Better Frequency Slope

SiTime – Better Stability
SiTime – Better Frequency Slope


Faster Warm Up

Better Vibration Resistance

SiTime – Faster Warm Up
SiTime – Better Vibration Resistance


Better Allan Deviation

Better Aging

SiTime – Better Allan Deviation
SiTime – Better Aging
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