Description:
The NTE980 CMOS Micropower Phase–Locked Loop (PLL) consists of a low–power, linear voltage–controlled oscillator (VCO) and two different phase comparators having a common signal–input amplifier and a common comparator input in a 16–Lead type package. A 5.2V zener diode is provided for supply regulation if necessary.

FEATUREs:
● Very Low Power Consumption: 70µW (Typ) @ VCO fo = 10kHz, VDD = 5V
● Operating Frequency Range up to 1.4MHz (Typ) @ VDD = 10V, RI = 5kΩ
● Low Frequency Drift: 0.04%/°C (Typ) @ VDD = 10V
● Choice of Two Phase Comparators:
    Exclusive–OR Network (I)
    Edge–Controlled Memory Network w/Phase–Pulse Output for Lock Indication (II)
● High VCO Linearity: < 1% (Typ) @ VDD = 10V
● VCO Inhibit Control for ON–OFF Keying and Ultra–Low Standby Power Consumption
● Source–Follower Output of VCO Control Input (Demod. Output)
● Zener Diode to Assist Supply Regulation
● Standardized, Symmetrical Output Characteristics
● 100% Tested for Quiescent Current at 20V
● 5V, 10V, and 15V Parametric Ratings

APPLICATIONs:
● FM Demodulator and Modulator
● Frequency Synthesis and Multiplication
● Frequency Discriminator
● Signal Conditioning
● FSK – Modems
● Data Synchronization
● Voltage–to–Frequency Conversion
● Tone Decoding