LM567 DATASHEET PDF

The circuit consists of an I and Q detector driven by a voltage controlled oscillator which determines the center frequency of the decoder. External components are used to independently set center frequency, bandwidth and output delay. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings.

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The circuit consists of an I and Q detector driven by a voltage controlled oscillator which determines the center frequency of the decoder. External components are used to independently set center frequency, bandwidth and output delay. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits.

Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guarantee specific performance limits. This assumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given, however, the typical value is a good indication of device performance.

As used herein: 1. Life support devices or systems are devices or systems which, a are intended for surgical implant into the body, or b support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user.

A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Tel: Fax: National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.

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LM567 National Semiconductor, LM567 Datasheet - Page 8

The circuit consists of an I and Q detector driven by a voltage controlled oscillator which determines the center frequency of the decoder. External components are used to independently set center frequency, bandwidth and output delay. Small Outline Package Vapor Phase 60 sec. Infrared 15 sec. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits.

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LM567 Tone Decoder IC Features, Datasheet and Applications

Needless to say this chip can be used for a number of different applications, the most common being in the field of remote controls, and security systems. Pin 3 is the sensing input of the input, which is used for detecting a given phase-locked loop frequency, in other words this pin will lock-on with the matching center frequency which may be set inside the IC through a pair of external RC network. The Pin 5 and 6 are used for creating the center frequency by setting up the values of R1, C1 as required, and this frequency is used by the sensing input pin 3 to lock-in and create a logic zero at pin 8 which is the output pin of the IC. Output Pin 8 is normally logic high and becomes logic zero as soon as a matching frequency is detected at pin 3 of the IC. Pin 1 and pin 2 are used for ensuring proper filtration of the involved frequencies so that the IC does not create any false output due to any existing spurious or stray noise interferences. Main Features of LM Extensive settable frequency range 0. Highly stable of center frequency, which assures precise passband limits making the unit very reliable with the detection functions.

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LM567 National Semiconductor, LM567 Datasheet

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