NTE989 NTE ELECTRONICS, NTE989 Datasheet

NTE989

Manufacturer Part Number

NTE989

Description

Replacement Semiconductors DIP-14 GEN PUR PLL

Manufacturer

NTE ELECTRONICS

Datasheet

1.NTE989.pdf (4 pages)

Specifications of NTE989

Pll Type

Frequency Synthesis

Frequency

500kHz

Supply Current

8mA

Supply Voltage Range

Â± 5V To Â± 12V

Digital Ic Case Style

DIP

No. Of Pins

Operating Temperature Range

0Â°C To +70Â°C

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant, Lead free / RoHS Compliant

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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

Applications:

D Data and tape synchronization

D Modems

D FSK demodulation

D FM demodulation

D Frequency synthesizer

D Tone decoding

Absolute Maximum Ratings:

Supply Voltage

Power Dissipation (Note 1)

Differential Input Voltage

Operating Temperature Range

Storage Temperature Range

Lead Temperature (Soldering, 10 sec)

Note 1. The maximum junction temperature of the NTE989 is 100 C. Thermal resistance for this

device is 100 C/W.

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General Purpose Phase Lock Loop (PLL)

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Integrated Circuit

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NTE989

60%

D Frequency multiplication and division

D SCA demodulators

D Telemetry receivers

D Signal regeneration

D Coherent demodulators

–65 C to +150 C

0 C to +70 C

300mW

+300 C

12V

Related parts for NTE989

NTE989 Summary of contents

Page 1

... General Purpose Phase Lock Loop (PLL) Description: The NTE989 is a general purpose Phase Locked Loop (PLL 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– ...

Page 2

Electrical Characteristics: (T Parameter Power Supply Current Input Impedance (Pins 2,3) VCO Maximum Operating Frequency Operating Frequency Temperature Coefficient Frequency Drift with Supply Voltage Triangle Wave Output Voltage Triangle Wave Output Linearity Square Wave Output Level Output Impedance (Pin 4) ...

Page 3

... Applications Information (Cont’d): LOOP GAIN (Cont’d): The loop gain of the NTE989 is dependent on supply voltage, and may be found from: 33 VCO frequency total supply voltage to circuit c Loop gain may be reduced by connecting a resistor between Pin6 and Pin7; this reduces the load impedance on the output amplifier and hence the loop gain. ...

Page 4

Max .100 (2.45) .600 (15.24 .200 (5.08) Max .099 (2.5) Min .300 (7.62) ...

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