Electronics & Computers

Volume Production of Optimized Combination Gyro-Sensor

September 2, 2010

Epson Toyocom Timing Products Division has launched volume production of its XV-3700CB QMEMS gyro-sensor with a wide sensing range, high stability and low noise characteristics.

EL SEGUNDO, CA--(Marketwire -) - Epson Toyocom Corporation's U.S.-based Timing Products Division announced it has completed commercial development and launched volume production of its newest high-sensitivity gyro-sensor. The critically enhanced XV-3700CB is the industry's first to combine a high-sensitivity gyro-sensor with a wide detection range that has been optimized as an input device for motion user interfaces. Production level samples are available now.

To-date, existing sensor products have not been able to simultaneously provide both a wide sensing range and good stability and noise characteristics. To facilitate this demand to sense the motion of persons or objects more accurately requires that angular velocity be sensed over a wide range, from slow speeds to fast. The XV-3700CB not only retains the low noise level and outstanding bias stability of Epson Toyocom's current XV-3500CB but, in addition, accurately senses motion over a wide range by simultaneously outputting two modes, a high-speed mode (sensing range: ±1500°/s) with a nominal scale factor of 0.8 mV/(° s–1), and a low-speed mode (sensing range: ±300°/s) with a nominal scale factor of 3.624 mV/ (° s–1).

Used for analyzing human motion or as an input device for a motion user interface that accurately senses, for example, the altitude of a radio-controlled helicopter, the new gyro-sensor will help improve the performance of devices designed for even the most critical and intuitive motion sensing applications, such as controllers and 3D mice.

Main Features
1) Capable of sensing both slow and fast motion, with low-speed and high-speed modes in a single package
2) Supports simultaneous dual signal output thanks to Epson Toyocom's analog circuit technology
3) Achieves a low noise level yet retains the performance of the XV-3500CB
4) High-precision QMEMS gyro element provides outstanding bias stability

Main Specifications

Item Unit Specifications
Supply voltage V 2.7~3.3  
Operating temperature °C –20 ~ +80  
Scale factor Output 1 mV/(° s–1) 0.8  
Scale factor Output 2 mV/(° s–1) 3.624  
Rate range output 1 °/s ±1500  
Rate range output 2 °/s ±300  
Scale factor tolerance % ±8 Ta=25°C
Scale factor variation with temperature % ±5 VDD=3.0 V, Ta=25°C based
Bias output mV 1500 Ta=25°C
Bias variation with temperature output 1 mV ±50 VDD=3.0 V Ta=25°C based
Bias variation with temperature output 2 mV ±100 VDD=3.0 V Ta=25°C based
Reference voltage mV 1500 Ta=25°C
Size mm 5.0 x 3.2 x t1.3  

About Epson Toyocom
Epson Toyocom Corporation is the global leader in crystal devices, which serve as the heart and pulse for a wide range of electronic products for consumers and industry. Utilizing its innovative hybrid quartz microfabrication technology, QMEMS, Epson Toyocom offers technological expertise in timing, sensing, and optical devices, and maintains its leadership position by providing customer-specific combinations and solutions.

About Epson Electronics America, Inc.
The Timing Products Business Unit of Epson Electronics America, Inc. (EEA) is the North American sales, marketing, and engineering arm of Epson Toyocom Corporation (Epson Toyocom) and provides a wide array of crystals, oscillators, real-time clock modules, SAW products, optical devices and gyro and pressure sensors. Based in El Segundo, CA, the EEA group has more than 40 sales representative offices nationwide and a growing network of exclusive distributors. For more information, please visit www.eea.epson.com and click on the Epson Toyocom center box. Both Epson Toyocom and EEA are part of the Seiko Epson Group, which consists of 108 companies around the world.

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