CD74HCT4046AE

Overview

Category

CD74HCT4046AE belongs to the category of integrated circuits (ICs).

Use

It is commonly used in electronic circuits for frequency synthesis and phase-locked loop (PLL) applications.

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Schmitt trigger inputs
• Improved noise immunity

Package

CD74HCT4046AE is available in a 16-pin dual in-line package (DIP).

Essence

The essence of CD74HCT4046AE lies in its ability to generate stable and accurate frequencies, making it suitable for various applications requiring precise timing.

Packaging/Quantity

CD74HCT4046AE is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications and Parameters

• Supply Voltage: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Input Voltage High Level: 3.15V (min), 4.5V (max)
• Input Voltage Low Level: 0.35V (min), 1.5V (max)
• Output Voltage High Level: 4.4V (min), 5.2V (max)
• Output Voltage Low Level: 0.4V (min), 0.8V (max)

Pin Configuration

The pin configuration of CD74HCT4046AE is as follows:

1. VCO IN
2. GND
3. VCO OUT
4. NC
5. PHASE COMPARATOR INPUT
6. PHASE COMPARATOR INPUT
7. PHASE COMPARATOR INPUT
8. VCC
9. FILTER INPUT
10. FILTER OUTPUT
11. NC
12. NC
13. NC
14. NC
15. NC
16. NC

Functional Characteristics

CD74HCT4046AE offers the following functional characteristics:

• Phase comparator with three inputs
• Voltage-controlled oscillator (VCO)
• Low-pass filter (LPF)
• Lock detection circuitry
• Frequency and phase comparators

Advantages and Disadvantages

Advantages

• High-speed operation allows for quick frequency synthesis.
• Low power consumption makes it suitable for battery-powered devices.
• Wide operating voltage range provides flexibility in various applications.
• Schmitt trigger inputs enhance noise immunity.

Disadvantages

• Limited pin configuration options may restrict certain circuit designs.
• Requires external components for complete PLL functionality.

Applicable Range of Products

CD74HCT4046AE is commonly used in the following products:

• Communication systems
• Audio equipment
• Test and measurement instruments
• Clock generation circuits
• Frequency synthesizers

Working Principles

The working principle of CD74HCT4046AE revolves around its phase-locked loop (PLL) functionality. It compares the phase and frequency of an input signal with a reference signal, generating an output signal that locks onto the desired frequency.

Detailed Application Field Plans

CD74HCT4046AE finds application in various fields, including:

1. Wireless communication systems: Used for frequency modulation and demodulation.
2. Audio equipment: Enables precise tuning and frequency control in audio processing circuits.
3. Test and measurement instruments: Provides accurate frequency generation for signal analysis.
4. Clock generation circuits: Used to generate stable clock signals for digital systems.
5. Frequency synthesizers: Allows for the synthesis of multiple frequencies from a single reference signal.

Detailed Alternative Models

Some alternative models to CD74HCT4046AE include:

• CD4046BE
• MC14046B
• HEF4046BP
• 74HC4046

5 Common Technical Questions and Answers

1. Q: What is the maximum operating voltage for CD74HCT4046AE? A: The maximum operating voltage is 6V.

2. Q: Can CD74HCT4046AE be used in battery-powered devices? A: Yes, it has low power consumption, making it suitable for such applications.

3. Q: Does CD74HCT4046AE require external components for PLL functionality? A: Yes, it requires additional components like resistors and capacitors for complete PLL operation.

4. Q: What is the purpose of the lock detection circuitry in CD74HCT4046AE? A: The lock detection circuitry ensures that the output signal remains locked onto the desired frequency.

5. Q: Are there any alternative models with similar functionality? A: Yes, some alternative models include CD4046BE, MC14046B, HEF4046BP, and 74HC4046.

This concludes the encyclopedia entry for CD74HCT4046AE.