Precision Micropower Oscillators Offer 99.91% Accuracy
The LTC6930 has significant advantages in battery and portable applications. Drawing only 105uA at 32 kHz and requiring only a single 1.7V to 5.5V supply, the LTC6930 can operate from two unregulated NiCad batteries. Battery life is also extended, using the fast startup, where minimal power is lost during the clock power-up. Most oscillators exhibit a startup time greater than a millisecond. By contrast, the LTC6930 has a guaranteed startup time of less than 110usec.
The 0.09% frequency tolerance makes the LTC6930 suitable for many applications, including serial port communications and microprocessor clocks. The LTC6930 is fully specified for operation from -40°C to 125°C and offers rugged, reliable operation in environments unsuitable for crystal-based oscillators. These parts are available in a compact 2x3mm DFN and an 8-lead MSOP package.
"The LTC6930 combines the unique features of Linear Technology's silicon oscillators with next-generation frequency accuracy. Industrial and handheld devices will especially have an advantage with these clocks," says Doug LaPorte, design manager for Linear Technology.
All versions are in full production, with prices starting at $1.31 each in 1,000-piece quantities.
Summary of Features: LTC6930
Startup Time <110us at All Frequencies
105uA Typical Supply Current at 32kHz
490uA Typical Supply Current at 8MHz
Frequency Error <0.09%, Max @ 25°C
1.7V to 5.5V Single Supply Operation
Typical RMS Period Jitter <0.15%
No External Components Required to Set Frequency 5 Options Cover 32kHz to 8.192MHz:
- LTC6930-4.19: 32.768kHz to 4.194MHz
- LTC6930-5.00: 39.1kHz to 5.000MHz
- LTC6930-7.37: 57.6kHZ to 7.373MHz
- LTC6930-8.00: 62.5kHz to 8.000MHz
- LTC6930-8.19: 64.0kHz to 8.192MHz
-40°C to 125°C Operating Temperature Range Tiny 2mm × 3mm DFN or MS8 Package
LINEAR TECHNOLOGY GmbH
Linear Technology Corporation, a manufacturer of high performance linear integrated circuits, was founded in 1981, became a public company in 1986 and joined the S&P 500 index of major public companies in 2000. Linear Technology products include high performance amplifiers, comparators, voltage references, monolithic filters, linear regulators, DC-DC converters, battery chargers, data converters, communications interface circuits, RF signal conditioning circuits, uModule(TM) products, and many other analog functions. Applications for Linear Technology's high performance circuits include telecommunications, cellular telephones, networking products such as optical switches, notebook and desktop computers, computer peripherals, video/multimedia, industrial instrumentation, security monitoring devices, high-end consumer products such as digital cameras and MP3 players, complex medical devices, automotive electronics, factory automation, process control, and military and space systems. For more information, visit www.linear.com.
LT, LTC, LTM, Burst Mode and are registered trademarks and uModule is a trademark of Linear Technology Corp. All other trademarks are the property of their respective owners.