Endoscopes

Endoscopes

A growing preference for minimally invasive procedures has boosted the use of endoscopes. These devices require stable, reliable timing solutions. SiTime MEMS timing products meet the challenge with better stability, excellent immunity to system noise, smaller size, and lower power. Additionally, SiTime oscillators are available in a wide range of configurations and custom frequencies.

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SiTime MEMS Timing Benefits

Environmentally robust

Excellent stability over temperature

Shock and vibration resistance

EMI resistance

Size and power efficient

Small footprints

Ultra-low power consumption

Drives multiple loads

Easy to use, built to last

Flexible frequency options

No quartz reliability issues

>1 billion hour MTBF

With minimal downtime for patients compared to invasive surgical procedures, endoscopy has found use in a wide variety specialties. An aging population, sport injuries, rising cases of chronic diseases and the large number of specialties using endoscopes are major contributors to the growth of this segment.

Endoscopes come in different shapes and sizes as indicated below. All types require a camera, a DSP, and a display. Additionally, capsule endoscopes require a wireless interface.

  • Rigid endoscopes
  • Robot assisted endoscopes
  • Disposable endoscopes
  • Capsule endoscopes
  • Flexible endoscopes

Endoscopes Block Diagram

Endoscopes Block DiagramSiT95145SiT8008SiT1602SiT8021SiT1603SiT1811SiT1552sitime.com

MEMS Timing for Endoscopes

Devices Key Features Key Values
Jitter cleaner
SiT95145  8 kHz to 2.1 GHz​
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  • -40°C to +85°C
  • ±45 ppm stability
  • Fully configurable outputs
  • 10 differential or 20 LVCMOS outputs
  • 4 differential inputs
  • High reliability
  • Stable output, no frequency jumps
  • Excellent immunity to system noise
  • Integrated resonator avoids XTAL capacitive matching issues
MHz oscillator
SiT8008  1 to 110 MHz
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SiT1602  52 std freqs from 3.57 to 77.76 MHz
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  • -40°C to +85°C
  • ±20 ppm stability
  • 5 std package sizes
  • High reliability
  • Flexible frequency options
  • Excellent stability over temperature
MHz oscillator
SiT8021  1 to 26 MHz
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  • -40°C to +85°C
  • ±20 ppm stability
  • 1.5 x 0.8 CSP package
  • High reliability
  • Extended temperature range
  • Small footprint
  • Wide programmable frequency range
MHz oscillator
SiT1603 [1] 8 to 76.8 MHz (various specific frequencies)
  • -40°C to +85°C
  • ±25 ppm stability
  • 2 mA current consumption
  • 0.75 fs rms phase jitter
  • High reliability
  • Low power
  • Various standard package options
32.768 kHz oscillator
SiT1811 [1]
  • ±20, ±50 ppm stability
  • 1.14 to 3.3 V supply
  • 490 nA current consumption
  • Up to -40°C to +105°C
  • 1.2 x 1.1 mm QFN
  • Low power
  • Small footprint
  • Excellent stability
32.768 kHz TCXO
  • ±5, ±10. ±20 ppm stability
  • 1 uA current consumption
  • Up to -40°C to +85°C
  • 1.5 x 0.8 CSP package
  • Small footprint
  • Excellent stability

[1] Please contact SiTime for availability

SiTime Advantages

SiTime devices offer the following advantages over quartz, which are particularly important for medical:

  • Up to 2x better stability, 10x lower jitter in the presence of PCB noise
  • Performance with EMI up to 50x better
  • 30x better shock and vibration resistance
  • Industry-leading small package sizes down to 1508 CSP

MEMS Timing Outperforms Quartz

Higher Reliability

Smallest Size, Lower BOM

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SiTime timing devices are up to 50x more reliable than legacy quartz
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SiTime MEMS Oscillators – Smallest size, Lower BOM
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