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Tone Decoder. LMC567 Datasheet

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Tone Decoder. LMC567 Datasheet






LMC567 Decoder. Datasheet pdf. Equivalent




LMC567 Decoder. Datasheet pdf. Equivalent





Part

LMC567

Description

Low-Power Tone Decoder



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMC567 SNOSBY1C – JUNE 199 9 – REVISED DECEMBER 2015 LMC567 Low- Power Tone Decoder 1 Features •1 Fun ctionally Similar to LM567 • 2-V to 9 -V Supply Voltage Range • Low Supply Current Drain • No Increase in Curren t With Output Activated • Operates to 500-kHz Input Frequency • High .
Manufacture

Texas Instruments

Datasheet
Download LMC567 Datasheet


Texas Instruments LMC567

LMC567; Oscillator Stability • Ground-Referenc ed Input • Hysteresis Added to Amplit ude Comparator • Out-of-Band Signals and Noise Rejected • 20-mA Output Cur rent Capability 2 Applications • Touc h-Tone Decoding • Precision Oscillato rs • Frequency Monitoring and Control • Wide-Band FSK Demodulation • Ult rasonic Controls • Carrier Current Re mote Controls • Communications Paging .


Texas Instruments LMC567

Decoders 3 Description The LMC567 devic e is a low-power, general-purpose LMCMO S tone decoder which is functionally si milar to the industry standard LM567. T he device consists of a twice frequency voltage-controlled oscillator (VCO) an d quadrature dividers which establish t he reference signals for phase and ampl itude detectors. The phase detector and VCO form a phase-.


Texas Instruments LMC567

locked loop (PLL) which locks to an inpu t signal frequency which is within the control range of the VCO. When the PLL is locked and the input signal amplitud e exceeds an internally pre-set thresho ld, a switch to ground is activated on the output pin. External components set up the oscillator to run at twice the input frequency and determine the phase and amplitude fil.

Part

LMC567

Description

Low-Power Tone Decoder



Feature


Product Folder Sample & Buy Technical Documents Tools & Software Support & Community LMC567 SNOSBY1C – JUNE 199 9 – REVISED DECEMBER 2015 LMC567 Low- Power Tone Decoder 1 Features •1 Fun ctionally Similar to LM567 • 2-V to 9 -V Supply Voltage Range • Low Supply Current Drain • No Increase in Curren t With Output Activated • Operates to 500-kHz Input Frequency • High .
Manufacture

Texas Instruments

Datasheet
Download LMC567 Datasheet




 LMC567
Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
LMC567
SNOSBY1C – JUNE 1999 – REVISED DECEMBER 2015
LMC567 Low-Power Tone Decoder
1 Features
1 Functionally Similar to LM567
• 2-V to 9-V Supply Voltage Range
• Low Supply Current Drain
• No Increase in Current With Output Activated
• Operates to 500-kHz Input Frequency
• High Oscillator Stability
• Ground-Referenced Input
• Hysteresis Added to Amplitude Comparator
• Out-of-Band Signals and Noise Rejected
• 20-mA Output Current Capability
2 Applications
• Touch-Tone Decoding
• Precision Oscillators
• Frequency Monitoring and Control
• Wide-Band FSK Demodulation
• Ultrasonic Controls
• Carrier Current Remote Controls
• Communications Paging Decoders
3 Description
The LMC567 device is a low-power, general-purpose
LMCMOS tone decoder which is functionally similar
to the industry standard LM567. The device consists
of a twice frequency voltage-controlled oscillator
(VCO) and quadrature dividers which establish the
reference signals for phase and amplitude detectors.
The phase detector and VCO form a phase-locked
loop (PLL) which locks to an input signal frequency
which is within the control range of the VCO. When
the PLL is locked and the input signal amplitude
exceeds an internally pre-set threshold, a switch to
ground is activated on the output pin. External
components set up the oscillator to run at twice the
input frequency and determine the phase and
amplitude filter time constants.
Device Information (1)
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMC567
SOIC (8)
4.90 mm × 3.91 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Diagram
1
Amplitude
Detector
2
3
Phase
Detector
4
8
7
÷2 ÷2
6
VCO
5
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.




 LMC567
LMC567
SNOSBY1C – JUNE 1999 – REVISED DECEMBER 2015
www.ti.com
Table of Contents
1 Features .................................................................. 1
2 Applications ........................................................... 1
3 Description ............................................................. 1
4 Revision History..................................................... 2
5 Device Comparison Table..................................... 3
6 Pin Configuration and Functions ......................... 3
7 Specifications......................................................... 4
7.1 Absolute Maximum Ratings ...................................... 4
7.2 Recommended Operating Conditions....................... 4
7.3 Thermal Information .................................................. 4
7.4 Electrical Characteristics........................................... 4
7.5 Typical Characteristics .............................................. 6
8 Parameter Measurement Information .................. 7
8.1 Test Circuit ................................................................ 7
9 Detailed Description .............................................. 8
9.1 Overview ................................................................... 8
9.2 Functional Block Diagram ......................................... 8
9.3 Feature Description................................................... 8
9.4 Device Functional Modes.......................................... 9
10 Application and Implementation........................ 10
10.1 Application Information.......................................... 10
10.2 Typical Application ............................................... 10
11 Power Supply Recommendations ..................... 12
12 Layout................................................................... 12
12.1 Layout Guidelines ................................................. 12
12.2 Layout Example ................................................... 12
13 Device and Documentation Support ................. 13
13.1 Device Support .................................................... 13
13.2 Community Resources.......................................... 13
13.3 Trademarks ........................................................... 13
13.4 Electrostatic Discharge Caution ............................ 13
13.5 Glossary ................................................................ 13
14 Mechanical, Packaging, and Orderable
Information ........................................................... 13
4 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision B (April 2013) to Revision C
Page
• Added ESD Ratings table, Feature Description section, Device Functional Modes section, 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 A (April 2013) to Revision B
Page
• Changed layout of National Data Sheet to TI format ............................................................................................................. 9
2
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Product Folder Links: LMC567
Copyright © 1999–2015, Texas Instruments Incorporated




 LMC567
www.ti.com
5 Device Comparison Table
LMC567
SNOSBY1C – JUNE 1999 – REVISED DECEMBER 2015
DEVICE NUMBER
LMC567
LM567, LM567C
DESCRIPTION
Low power tone decoder
General-purpose tone decoder with half oscillator frequency than
LMC567
6 Pin Configuration and Functions
D Package
8-Pin SOIC
Top View
1
8
2
7
3
6
4
5
PIN
NAME
NO.
GND
7
IN
3
LF_CAP
2
OF_CAP
1
OUT
8
T_CAP
5
T_RES
6
VCC
4
TYPE (1)
PWR
I
I
I
O
I
I
PWR
(1) I = input, O = output, PWR = power
Pin Functions
DESCRIPTION
Ground connection
Device input
Loop filter capacitor terminal
Output filter capacitor terminal
Device output
Timing capacitor connection terminal
Timing resistor connection terminal
Voltage supply connection
Copyright © 1999–2015, Texas Instruments Incorporated
Product Folder Links: LMC567
Submit Documentation Feedback
3






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