LM567

·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

·Touch tone decoding
·Precision oscillator
· Frequency monitoring and control
·Wide band FSK demodulation
·Ultrasonic controls
· Carrier current remote controls
· Communications paging decoders

Supply Voltage Pin ......................................................................9V
Power Dissipation (Note 2) ...............................................1100 mW
V8 ..............................................................................................15V
V3 ............................................................................................−10V
V3 .....................................................................................V₄ + 0.5V
Storage Temperature Range ..............................−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

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 the decoder. External components are used to independently set center frequency, bandwidth and output delay.