SiT30100

Four-Output Mobile Clock Generator with Integrated MEMS Resonator and Temperature Sensor

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SiTime Symphonic™ SiT30100 is an advanced, low-power, high-performance mobile clock generator with four clock outputs. The device integrates a MEMS resonator, temperature sensor and a temperature-to-digital converter (TDC), which eliminates the need for external crystal and temperature-sensing crystal resonators. The SiT30100 is packaged in a 10-pin chip-scale package (CSP) that occupies a tiny 2.22 mm2 area, enabling smaller, more dense systems. Each device is tested over temperature, with frequency-vs-temperature (FvT) characteristics saved to the device’s internal non-volatile memory (NVM) as polynomial coefficients and are accessible through a UART-compatible I/O interface. These features facilitate system stability as low as ±0.5 ppm which meets the requirements of modern 5G, RF and GNSS chipsets.

The excellent thermal coupling of resonator and TDC—combined with fast temperature conversions—deliver world-class dynamic performance in the presence of fast temperature ramp rates. This makes the SiT30100 the ideal choice for modern mobile applications.

Related Blog: Product Spotlight: A New, Smarter Clock Generator for 5G and GNSS Design Challenges.

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10-pin Mobile Clock Generator CSP (Top & Bottom Angled View)
"Specs" "Value"
Frequency 76.8 MHz
Frequency Stability (ppm) ±0.5
Operating Temperature Range (°C) -30 to +90
Package Type (mm²) 2.22
Voltage Supply (V) 1.5
  • 10-pin Mobile Clock Generator CSP (Top & Bottom Angled View)
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    10-pin Mobile Clock Generator CSP (Top & Bottom Angled View)

  • 4-output clock generator providing 76.8 MHz, 38.4 MHz, and 19.2 MHz for RF and GNSS applications.
  • Integrated 76.8 MHz MEMS resonator with ±45 ppm total frequency stability.
  • Integrated high precision temperature-to-digital converter (TDC) with single-wire UART interface.
  • Part specific factory calibrated compensation coefficients in NVM improve total frequency stability to ±0.5 ppm.
  • Superior dynamic stability under airflow and thermal shock (ramp rates of 5°C/s).
  • Individual output enables pins for EMI and power reduction.
  • Operating temperature range: -30°C to +90°C (Contact SiTime for wider temperature ranges).
  • Enables maximum PCB layout flexibility with tiny footprint: 2.22 mm2.
  • Smartphones
  • Tablets
  • Laptop Computers
  • Smartwatches
  • 5G Infrastructure
  • GNSS Receivers
  • Asset Tracking
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