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TAN-005 Datasheet High-quality Function Generator System

Manufacturer: Exar (now MaxLinear)

Overview: www.DataSheet4U.com TAN-005 ...the analog plus company TM High-Quality Function Generator System with the XR-2206 June 1997-3 INTRODUCTION Waveform or function generators capable of producing AM/FM modulated sine wave outputs find a wide range of applications in electrical measurement and laboratory instrumentation. This application note describes the design, construction and performance of such a complete function generator system suitable for laboratory usage or hobbyist applications. The entire function generator is comprised of a single XR-2206 monolithic IC and a limited number of passive circuit components. It provides the engineer, student, or hobbyist with a highly versatile laboratory instrument for waveform generation, at a very small fraction of the cost of conventional function generators available today. However, they represent the typical performance characteristics measured by EXAR’s application engineers during the laboratory evaluation of the function generator system shown in Figure 1.

General Description

The basic circuit configuration and the external components necessary for the high-quality function generator system is shown in Figure 1.

The circuit shown is designed to operate with either a 12V single power supply, or with 16V split supplies.

For most applications, split-supply operation is preferred since it results in an output dc level which is nearly at ground potential.

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