The AD2S99 programmable sinusoidal oscillator provides sine wave excitation for resolvers and a wide variety of ac transducers.
The AD2S99 also provides a synchronous reference output signal (3 V p-p square wave) that is phase locked to its SIN and COS inputs. In an application, the SIN and COS inputs are connected to the transducer’s secondary windings. The synchronous reference output compensates for temperature and cabling dependent phase shifts and eliminates the need for external preset phase compensation circuits. The synchronous reference output can be used as a zero crossing reference for resolver-to-digital converters such as Analog Devices’ AD2S80A, AD2S82A, AD2S83 and AD2S90.
The AD2S99 is packaged in a 20-pin PLCC and operates over –40ºC to +85ºC.
|Title||Content Type||File Type|
|AD2S99: Programmable Oscillator Data Sheet (Rev B, 06/1995) (pdf, 317 kB)||Data Sheets|
|AN-264: Dynamic Characteristics of Tracking Converter (pdf, 205 kB)||Application Notes|
|AN-263: Resolver to Digital Conversion; Simple Alternative to Optical Shaft Encoders (pdf, 520 kB)||Application Notes|
Single Chip DSP Motor Control Systems Catching on in Home Appliances
(pdf, 18 kB)
An article by David Krakauer of Analog Devices, reprinted from the October 2000 issue of Appliance Magazine. This article addresses how Embedded DSP motor control is revolutionizing the appliance industry, not only by delivering the highest levels of motor performance, but also by the method employed to deliver that high performance.
DSP Motor Control in Domestic Appliance Applications
(pdf, 161 kB)
An article by Dr. Aengus Murray of Analog Devices printed in ECN Magazine, May 2000 issue. The article addresses DSP-based motor control systems offering the control bandwidth required to make possible the development of advanced motor drive systems for domestic appliance applications.
(Analog Dialogue, Vol. 30, No. 2, 1996)
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