NE567 Datasheet, PDF (1/13 Pages) NXP Semiconductors – Tone decoder/phase-locked loop

Philips Semiconductors Linear Products
Tone decoder/phase-locked loop
Product specification
NE/SE567
DESCRIPTION
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. The bandwidth center frequency and output delay
are independently determined by means of four external
components.
FEATURES
• 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
• Military processing available
APPLICATIONS
• Touch-Tone® decoding
• Carrier current remote controls
• Ultrasonic controls (remote TV, etc.)
• Communications paging
PIN CONFIGURATIONS
FE, D, N Packages
OUTPUT FILTER ₁
CAPACITOR C3
LOW-PASS FILTER 2
CAPACITOR C2
INPUT ³
SUPPLY VOLTAGE V+ ⁴
8 OUTPUT
7 _GROUND
6
TIMING
ELEMENTS R1
AND C1
5 _{TIMING ELEMENT R1}
TOP VIEW
F Package
OUTPUT ¹
C3 ²
NC ³
C2 ⁴
INPUT ⁵
NC ⁶
V_CC 7
14 _GND
13 _NC
12 _NC
11 _R1C1
10 _R1
9 _NC
8 NC
TOP VIEW
• Frequency monitoring and control
• Wireless intercom
• Precision oscillator
BLOCK DIAGRAM
4
R₂
3.9k
INPUT
3
PHASE
2
V1
DETECTOR
R_{1 5}
6
C₁
CURRENT
CONTROLLED
OSCILLATOR
QUADRATURE
PHASE
DETECTOR
AMP
R₃
V_REF
+
– AMP
®Touch-Tone is a registered trademark of AT&T.
7
1
C₃ OUTPUT
FILTER
LOOP
LOW
PASS
FILTER
C₂
8
R_L
+V
April 15, 1992
403
853-0124 06456