Decoder. LM567C Datasheet

LM567C Datasheet PDF


Part Number

LM567C

Description

Tone Decoder

Manufacture

etcTI

Total Page 29 Pages
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LM567C Datasheet
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LM567x Tone Decoder
LM567, LM567C
SNOSBQ4E – MAY 1999 – REVISED DECEMBER 2014
1 Features
1 20 to 1 Frequency Range With an External
Resistor
• Logic Compatible Output With 100-mA Current
Sinking Capability
• Bandwidth Adjustable From 0 to 14%
• High Rejection of Out of Band Signals and Noise
• Immunity to False Signals
• Highly Stable Center Frequency
• Center Frequency Adjustable from 0.01 Hz to
500 kHz
2 Applications
• Touch Tone Decoding
• Precision Oscillator
• Frequency Monitoring and Control
• Wide Band FSK Demodulation
• Ultrasonic Controls
• Carrier Current Remote Controls
• Communications Paging Decoders
3 Description
The LM567 and LM567C are general purpose tone
decoders designed to provide a saturated transistor
switch to ground when an input signal is present
within the passband. 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.
Device Information(1)
PART NUMBER PACKAGE
BODY SIZE (NOM)
LM567C
SOIC (8)
PDIP (8)
4.90 mm × 3.91 mm
9.81 mm × 6.35 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Diagram
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.

LM567C Datasheet
LM567, LM567C
SNOSBQ4E – MAY 1999 – REVISED DECEMBER 2014
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Simplified Diagram ................................................ 1
5 Revision History..................................................... 2
6 Device Comparison Table..................................... 3
7 Pin Configuration and Functions ......................... 3
8 Specifications......................................................... 4
8.1 Absolute Maximum Ratings ...................................... 4
8.2 Recommended Operating Conditions....................... 4
8.3 Thermal Information .................................................. 4
8.4 Electrical Characteristics........................................... 5
8.5 Typical Characteristics .............................................. 6
9 Parameter Measurement Information .................. 8
10 Detailed Description ............................................. 8
10.1 Overview ................................................................. 8
10.2 Functional Block Diagram ....................................... 8
10.3 Feature Description................................................. 9
10.4 Device Functional Modes...................................... 10
11 Application and Implementation........................ 12
11.1 Application Information.......................................... 12
11.2 Typical Applications .............................................. 13
12 Power Supply Recommendations ..................... 19
13 Layout................................................................... 19
13.1 Layout Guidelines ................................................. 19
13.2 Layout Example .................................................... 19
14 Device and Documentation Support ................. 20
14.1 Related Links ........................................................ 20
14.2 Trademarks ........................................................... 20
14.3 Electrostatic Discharge Caution ............................ 20
14.4 Glossary ................................................................ 20
15 Mechanical, Packaging, and Orderable
Information ........................................................... 20
5 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision D (March 2013) to Revision E
Page
• Added Pin Configuration and Functions section, ESD Ratings table, Feature Description section, Device Functional
Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device
and Documentation Support section, and Mechanical, Packaging, and Orderable Information section .............................. 1
Changes from Revision C (March 2013) to Revision D
Page
• Changed layout of National Data Sheet to TI format ............................................................................................................. 9
2 Submit Documentation Feedback
Copyright © 1999–2014, Texas Instruments Incorporated
Product Folder Links: LM567 LM567C


Features Datasheet pdf Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LM567x Tone Decoder LM567, LM567C SNOSBQ4E – MAY 1999 – REVISE D DECEMBER 2014 1 Features •1 20 to 1 Frequency Range With an External Resi stor • Logic Compatible Output With 1 00-mA Current Sinking Capability • Ba ndwidth Adjustable From 0 to 14% • Hi gh Rejection of Out of Band Signals and Noise • Immunity to False Signals Highly Stable Center Frequency • Ce nter Frequency Adjustable from 0.01 Hz to 500 kHz 2 Applications • Touch Ton e Decoding • Precision Oscillator • Frequency Monitoring and Control • W ide Band FSK Demodulation • Ultrasoni c Controls • Carrier Current Remote C ontrols • Communications Paging Decod ers 3 Description The LM567 and LM567C are general purpose tone decoders desi gned to provide a saturated transistor switch to ground when an input signal i s present within the passband. The circ uit consists of an I and Q detector driven by a voltage controlled oscillator which determines .
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