Feature

Programmable SiTime MEMS Oscillators

Quartz Oscillators

Programmable Quartz Oscillators

Robustness

50,000 G shock resistance

Indestructible

2,000 G shock resistance

Brittle, can break

2,000 G shock resistance

Brittle, can break

Supply Chain

Short lead time, 3~4 weeks

Silicon infrastructure for fast, reliable ramp capability

12-16 weeks

Need to build new line to ramp up volume

12-16 weeks

Need to build new line to ramp up volume

Size

Smallest programmable Osc (2520)

Thinnest OSC <0.3mm

Small but expensive and limited frequency range

Thick, > 0.8mm

Small but expensive and limited frequency range

Thick, > 0.8mm

Qualification Effort

Only one product qual for different frequencies and features

Every individual XO needs to be qualified

Only one product qual for different frequencies

Flexibility

Programmability of features, frequencies, voltage, output driver strength etc.

Fixed, no flexibility

Programmability of frequency only

Quality and Reliability

2 FIT (500M hrs MTBF)

Zero returns

> 30FIT

> 30FIT

High Frequency Operation

Up to 800 MHz easily available

Not easily available / expensive

Not easily available / expensive

Period Jitter

Low (< 3ps RMS)

Varies (2 – 7ps RMS)

Generally high (20-40ps RMS)

Phase Noise

Meets most application requirements

Generally good

Does not meet most application requirements