Philips NE567
The NE/SE567 tone and frequency decoder is a highly stable phase-locked loop with synchronous AM lock detection and power output circuitry. Its primary function is to drive a load whenever a sustained frequency within its detection band is present at the self-biased input.DESCRIPTION
The bandwidth center frequency and output delay are independently determined by means of four external components. PIN CONFIGURATIONS FE, D, N Packages OUTPUT FILTER CAPACITOR C3 LOW-PASS FILTER CAPACITOR C2 INPUT SUPPLY VOLTAGE V+ 1 2 3 4 TOP VIEW 8 7 6 5 OUTPUT GROUND TIMING ELEMENTS R1 AND C1 TIMING ELEMENT R1FEATURES
● Wide frequency range (.01Hz to 500kHz)● High stability of center frequency
● Independently controllable bandwidth (up to 14%)
● High out-band signal and noise rejection
● Logic-compatible output with 100mA current sinking capability
● Inherent immunity to false signals
● Frequency adjustment over a 20-to-1 range with an external resistor F Package OUTPUT 1 C3 2 NC 3 C2 4 INPUT 5 NC 6 VCC 7 TOP VIEW 14 GND 13 NC 12 NC 11 R1C1 10 R1 9 8 NC NC
● Military processing available
APPLICATIONS
● Touch-Tone® decoding● Carrier current remote controls
● Ultrasonic controls (remote TV, etc.)
● Communications paging BLOCK DIAGRAM 4
● Frequency monitoring and control...