74HCT4046AD,112

Overview

Category

The 74HCT4046AD,112 belongs to the category of integrated circuits (ICs).

Use

This IC is commonly used in electronic circuits for frequency and phase detection, as well as for generating and controlling signals.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Excellent noise immunity
• Compact package size

Package

The 74HCT4046AD,112 is available in a small outline package (SOIC) with 16 pins.

Essence

The essence of this product lies in its ability to accurately detect and control frequencies and phases in electronic systems.

Packaging/Quantity

The 74HCT4046AD,112 is typically packaged in reels or tubes, with a quantity of 2500 units per reel/tube.

Specifications and Parameters

• Supply voltage: 2.0V to 6.0V
• Operating temperature range: -40°C to +125°C
• Input frequency range: DC to 10MHz
• Output frequency range: DC to 10MHz
• Phase comparator frequency range: DC to 10MHz
• Lock range: ±2% of VCO center frequency
• Capture range: ±5% of VCO center frequency

Pin Configuration

The pin configuration of the 74HCT4046AD,112 is as follows:

1. VCO IN
2. GND
3. CP1
4. CP2
5. CP3
6. CP4
7. VDD
8. VCO OUT
9. LOCK DETECT
10. EXTERNAL CAPACITOR
11. EXTERNAL RESISTOR
12. PHASE COMPARATOR INPUT
13. PHASE COMPARATOR OUTPUT
14. FILTER INPUT
15. FILTER OUTPUT
16. GND

Functional Characteristics

The 74HCT4046AD,112 offers the following functional characteristics:

• Phase comparator with phase and frequency detector outputs
• Voltage-controlled oscillator (VCO) with wide frequency range
• Low-pass filter for noise reduction
• Lock detect output for synchronization indication

Advantages and Disadvantages

Advantages

• High-speed operation allows for precise frequency and phase detection.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range provides flexibility in various applications.
• Excellent noise immunity ensures reliable performance in noisy environments.
• Compact package size enables space-saving designs.

Disadvantages

• Limited input and output frequency range may not be suitable for high-frequency applications.
• Requires external capacitors and resistors for proper operation.

Applicable Range of Products

The 74HCT4046AD,112 is commonly used in the following applications:

• Frequency and phase detection circuits
• Signal generation and control systems
• Communication equipment
• Audio and video processing devices
• Industrial automation systems

Working Principles

The working principle of the 74HCT4046AD,112 is based on the phase-locked loop (PLL) concept. It uses a phase comparator to compare the phase and frequency of two input signals. The voltage-controlled oscillator generates an output signal with a frequency proportional to the input signals. The low-pass filter removes noise from the output signal, and the lock detect output indicates when the PLL is synchronized.

Detailed Application Field Plans

The 74HCT4046AD,112 can be applied in various fields, including:

1. Frequency modulation (FM) receivers: Used to accurately tune and demodulate FM signals.
2. Frequency synthesizers: Enables the generation of stable and precise frequencies for communication systems.
3. Phase-locked loop circuits: Provides frequency and phase control in digital and analog systems.
4. Clock recovery circuits: Used to extract clock signals from data streams in communication systems.
5. Frequency dividers: Allows for frequency division in digital circuits.

Detailed Alternative Models

Some alternative models to the 74HCT4046AD,112 include:

• CD4046B
• MC14046B
• HEF4046BP
• SN74LS4046
• NTE4046B

5 Common Technical Questions and Answers

1. Q: What is the maximum operating voltage of the 74HCT4046AD,112? A: The maximum operating voltage is 6.0V.

2. Q: Can this IC be used in high-frequency applications? A: No, the input and output frequency range is limited to DC to 10MHz.

3. Q: Does the 74HCT4046AD,112 require external components for operation? A: Yes, it requires external capacitors and resistors.

4. Q: What is the purpose of the lock detect output? A: The lock detect output indicates when the