MEMS based voltage controlled temperature
compensated oscillator from SiTime
SiTime Corporation has introduced ±0.5 PPM stable
MEMS VCTCXO (Voltage Controlled, Temperature Compensated
Oscillator) products that are targeted at Telecom, Networking
and Wireless applications like SONET and Synchronous Ethernet
based equipment, cellular base stations and repeaters, GPS
and instrumentation.
SiTime says this new, programmable, Encore-based VCTCXO
family consists of four devices, SiT5001, SiT5002, SiT5003
and SiT5004, all of which support frequencies up to 220
MHz, and 500 femtoseconds of integrated RMS phase jitter
(12 kHz to 20 MHz).
"SiTime has used its Silicon MEMS technology and programmable
analog expertise to accelerate innovation in the timing
components industry," said Piyush Sevalia, vice president
of marketing at SiTime. "Unlike the quartz industry,
SiTime offers web-enabled software development tools that
allow engineers to customize a SiTime device exactly for
their application, request samples, and receive them within
a week. This flexibility, along with unique features, 3
- 5 week lead times and 10 times better reliability than
quartz, is accelerating the electronics industry's move
to MEMS-based timing."
The SiT500x family consists of the following devices:
SiT5001: High Performance MEMS VCTCXO (1-80 MHz, ±1
to ±5 PPM)
SiT5002: High Performance, High Frequency MEMS VCTCXO (80-220
MHz, ±1 to ±5 PPM)
SiT5003: Ultra-Stable MEMS VCTCXO (1-80 MHz, ±0.5
PPM)
SiT5004: Ultra-Stable, High Frequency MEMS VCTCXO (80-220
MHz, ±0.5 PPM)
Key features and benefits of SiT500x family includes:
Any frequency within the operating range without any frequency
gaps that occur with existing quartz TCXOs
Up to 6 decimal places of frequency accuracy, that is just
not available from quartz TCXOs
Optional voltage control function, with pull range of ±12.5
PPM to ±50 PPM, provides the ability to fine-tune
frequencies after soldering on the board, and increases
system performance
SoftEdge programmable drive strength for optimal line impedance
matching, better signal integrity and EMI reduction
Industrial (-40 to +85°C) and commercial temperature
(-20 to +70°C) operation
1.8V and continuous 2.5-3.3V operation
500 million hour MTBF for best-in-class reliability, 10
times better than quartz
50,000 g shock and 70 g vibration immunity, 10 times better
than quartz
100% drop in replacement for existing solutions, available
in 4-pin 3225, 5032 and 7050 packages
Samples of the SiT500x devices are available now with production
in late Q3, 2011. Pricing is available upon request.
For more info visit: www.sitime.com