Tone Decoder. LM567C Datasheet

LM567C Datasheet PDF, Equivalent


Part Number

LM567C

Description

Tone Decoder

Manufacture

National Semiconductor

Total Page 8 Pages
PDF Download
Download LM567C Datasheet


LM567C Datasheet
May 1999
LM567/LM567C
Tone Decoder
General 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 cir-
cuit consists of an I and Q detector driven by a voltage con-
trolled oscillator which determines the center frequency of
the decoder. External components are used to indepen-
dently set center frequency, bandwidth and output delay.
Features
n 20 to 1 frequency range with an external resistor
n Logic compatible output with 100 mA current sinking
capability
n Bandwidth adjustable from 0 to 14%
n High rejection of out of band signals and noise
n Immunity to false signals
n Highly stable center frequency
n Center frequency adjustable from 0.01 Hz to 500 kHz
Applications
n Touch tone decoding
n Precision oscillator
n Frequency monitoring and control
n Wide band FSK demodulation
n Ultrasonic controls
n Carrier current remote controls
n Communications paging decoders
Connection Diagrams
Metal Can Package
Dual-In-Line and Small Outline Packages
DS006975-1
Top View
Order Number LM567H or LM567CH
See NS Package Number H08C
DS006975-2
Top View
Order Number LM567CM
See NS Package Number M08A
Order Number LM567CN
See NS Package Number N08E
© 1999 National Semiconductor Corporation DS006975
www.national.com

LM567C Datasheet
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage Pin
Power Dissipation (Note 2)
V8
V3
V3
Storage Temperature Range
9V
1100 mW
15V
−10V
V4 + 0.5V
−65˚C to +150˚C
Operating Temperature Range
LM567H
−55˚C to +125˚C
LM567CH, LM567CM, LM567CN
0˚C to +70˚C
Soldering Information
Dual-In-Line Package
Soldering (10 sec.)
260˚C
Small Outline Package
Vapor Phase (60 sec.)
215˚C
Infrared (15 sec.)
220˚C
See AN-450 “Surface Mounting Methods and Their Effect
on Product Reliability” for other methods of soldering
surface mount devices.
Electrical Characteristics
AC Test Circuit, TA = 25˚C, V+ = 5V
Parameters
Conditions
LM567
LM567C/LM567CM
Units
Min Typ Max Min Typ Max
Power Supply Voltage Range
4.75 5.0
9.0 4.75
5.0
9.0
V
Power Supply Current Quiescent
Power Supply Current Activated
Input Resistance
RL = 20k
RL = 20k
68
7 10 mA
11 13
12 15 mA
18 20
15 20
k
Smallest Detectable Input Voltage
Largest No Output Input Voltage
Largest Simultaneous Outband Signal to
Inband Signal Ratio
IL = 100 mA, fi = fo
IC = 100 mA, fi = fo
20 25
20 25 mVrms
10 15
10 15
mVrms
6 6 dB
Minimum Input Signal to Wideband Noise Bn = 140 kHz −6 −6 dB
Ratio
Largest Detection Bandwidth
Largest Detection Bandwidth Skew
Largest Detection Bandwidth Variation
with Temperature
12 14 16 10
12
±0.1
14
2
±0.1
18 % of fo
3 % of fo
%/˚C
Largest Detection Bandwidth Variation
with Supply Voltage
4.75–6.75V
±1 ±2
±1 ±5 %V
Highest Center Frequency
Center Frequency Stability (4.75–5.75V)
0 < TA < 70
−55 < TA < +125
100 500
35 ± 60
35 ±
140
100 500
35 ± 60
35 ±
140
kHz
ppm/˚C
ppm/˚C
Center Frequency Shift with Supply
Voltage
4.75V–6.75V
4.75V–9V
0.5 1.0
2.0
0.4 2.0 %/V
2.0 %/V
Fastest ON-OFF Cycling Rate
Output Leakage Current
Output Saturation Voltage
Output Fall Time
V8 = 15V
ei = 25 mV, I8 = 30 mA
ei = 25 mV, I8 = 100 mA
fo/20
0.01
0.2
0.6
30
25
0.4
1.0
fo/20
0.01 25 µA
0.2
0.6
0.4
1.0
V
30 ns
Output Rise Time
150 150 ns
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is func-
tional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifications under particular test conditions which guar-
antee 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.
Note 2: The maximum junction temperature of the LM567 and LM567C is 150˚C. For operating at elevated temperatures, devices in the TO-5 package must be de-
rated based on a thermal resistance of 150˚C/W, junction to ambient or 45˚C/W, junction to case. For the DIP the device must be derated based on a thermal resis-
tance of 110˚C/W, junction to ambient. For the Small Outline package, the device must be derated based on a thermal resistance of 160˚C/W, junction to ambient.
Note 3: Refer to RETS567X drawing for specifications of military LM567H version.
www.national.com
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Features Datasheet pdf LM567/LM567C Tone Decoder May 1999 LM5 67/LM567C Tone Decoder General Descript ion The LM567 and LM567C are general pu rpose tone decoders designed to provide a saturated transistor switch to groun d when an input signal is present withi n the passband. The circuit consists of an I and Q detector driven by a voltag e controlled oscillator which determine s the center frequency of the decoder. External components are used to indepen dently set center frequency, bandwidth and output delay. n n n n High rejectio n of out of band signals and noise Immu nity to false signals Highly stable cen ter frequency Center frequency adjustab le from 0.01 Hz to 500 kHz Application s n n n n n n n Touch tone decoding Pre cision oscillator Frequency monitoring and control Wide band FSK demodulation Ultrasonic controls Carrier current rem ote controls Communications paging deco ders Features n 20 to 1 frequency rang e with an external resistor n Logic com patible output with 100 mA current sinking capability n Bandwid.
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