Monday, August 21, 2006
Watch crystals handle real-time-clock duties
Watch crystals are available housed in a wide range of surface mount package styles for use in a variety of applications.
Frequency control specialist Euroquartz now offers watch crystals housed in a wide range of surface mount package styles for use in a variety of applications. The crystals all feature a nominal frequency of 32.768kHz making them ideal for use in real time clock (RTC) applications with calibration tolerance of +/-20ppm as standard on most devices (+/-50ppm standard on AG and FC series parts with +/-20ppm also available). Package sizes include 6 x 2, 8.7 x 3.8, 10.4 x 4, 7 x 1.5, 5 x 1.9 and ultraminiature 3.2 x 1.2mm.
Low power consumption types are available for portable, battery-powered applications while low cost crystals manufactured in epoxy resin are suitable for mass-market devices.
Typical specifications include maximum drive levels of 1W, ageing of +/-3ppm maximum in first year, load capacitance of 12.5pF (7pF available on some models) and operating temperature range from -40 to +85C (-55 to +125C storage temperature range).
Euroquartz's surface mount watch crystals are supplied in standard EIA 16mm tape and reel packaging and are suitable for reflow soldering.
Frequency control specialist Euroquartz now offers watch crystals housed in a wide range of surface mount package styles for use in a variety of applications. The crystals all feature a nominal frequency of 32.768kHz making them ideal for use in real time clock (RTC) applications with calibration tolerance of +/-20ppm as standard on most devices (+/-50ppm standard on AG and FC series parts with +/-20ppm also available). Package sizes include 6 x 2, 8.7 x 3.8, 10.4 x 4, 7 x 1.5, 5 x 1.9 and ultraminiature 3.2 x 1.2mm.
Low power consumption types are available for portable, battery-powered applications while low cost crystals manufactured in epoxy resin are suitable for mass-market devices.
Typical specifications include maximum drive levels of 1W, ageing of +/-3ppm maximum in first year, load capacitance of 12.5pF (7pF available on some models) and operating temperature range from -40 to +85C (-55 to +125C storage temperature range).
Euroquartz's surface mount watch crystals are supplied in standard EIA 16mm tape and reel packaging and are suitable for reflow soldering.
# posted by Swathi @ 2:19 AM 
