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Numéro de référence | SE567 | ||
Description | Tone decoder/phase-locked loop | ||
Fabricant | Philips | ||
Logo | |||
1 Page
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
CAPACITOR C3
LOW-PASS FILTER
CAPACITOR C2
INPUT
SUPPLY VOLTAGE V+
1
2
3
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
VCC 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
INPUT
V1
3 PHASE
DETECTOR
4
R2
3.9k
2
R1 5
6
C1
CURRENT
CONTROLLED
OSCILLATOR
QUADRATURE
PHASE
DETECTOR
AMP
R3
VREF
+
– AMP
®Touch-Tone is a registered trademark of AT&T.
71
C3 OUTPUT
FILTER
LOOP
LOW
PASS
FILTER
C2
8
RL
+V
April 15, 1992
403 853-0124 06456
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Pages | Pages 13 | ||
Télécharger | [ SE567 ] |
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