NTE989
Integrated Circuit
General Purpose Phase Lock Loop (PLL)
Description:
The NTE989 is a general purpose Phase Locked Loop (PLL) in a 14–Lead DIP type package contain-
ing a stable, highly linear voltage controlled oscillator for low distortion FM demodulation, and a
double balanced phase detector with good carrier suppression. The VCO frequency is set with an
external resistor and capacitor, and tuning range of 10:1 can be obtained with the same capacitor.
The characteristics of the closed loop system–bandwidth, response speed, capture and pull in range–
may be adjusted over a wide range with an external resistor and capacitor. The loop may be broken
between the VCO and the phase detector for insertion of a digital frequency divider to obtain frequen-
cy multiplication.
Features:
D
200ppm/°C frequency stability of the VCO
D
Power supply range of
±5
to
±12
volts with 100ppm/% typical
D
0.2% linearity of demodulated output
D
Linear triangle wave with in phase zero crossings available
D
TTL and DTL compatible phase detector input and square wave output
D
Adjustable hold in range from
±1%
to
> ±60%
Applications:
D
Data and tape synchronization
D
Modems
D
FSK demodulation
D
FM demodulation
D
Frequency synthesizer
D
Tone decoding
D
D
D
D
D
Frequency multiplication and division
SCA demodulators
Telemetry receivers
Signal regeneration
Coherent demodulators
Absolute Maximum Ratings:
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±12V
Power Dissipation (Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mW
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±1V
Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to +70°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C
Note 1. The maximum junction temperature of the NTE989 is 100°C. Thermal resistance for this
device is 100°C/W.
NTE [ NTE ELECTRONICS ]
