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

MEMS Timing for Endoscopes

Devices	Key Features	Key Values
Jitter cleaner SiT95145 8 kHz to 2.1 GHz	-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 SiT1602 52 std freqs from 3.57 to 77.76 MHz	-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	-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 SiT1552	±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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Endoscopes