CD74HCT4046AMT

Overview

Category

CD74HCT4046AMT belongs to the category of integrated circuits (ICs).

Use

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

Characteristics

• High-speed operation
• Low power consumption
• Wide operating voltage range
• Compatibility with TTL logic levels
• Schmitt-trigger inputs for noise immunity

Package

CD74HCT4046AMT is available in a small outline package (SOP) with 16 pins.

Essence

The essence of CD74HCT4046AMT lies in its ability to generate stable and accurate frequencies through PLL circuitry.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 2500 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), VCC (max)
• Output Voltage Low Level: 0.1V (min), 0.1V (max)

Pin Configuration

The pin configuration of CD74HCT4046AMT is as follows:

| Pin No. | Name | Description | |---------|------|-------------| | 1 | VCO | Voltage-controlled oscillator output | | 2 | GND | Ground | | 3 | CP | Charge pump input | | 4 | XIN | Crystal oscillator input | | 5 | XOUT | Crystal oscillator output | | 6 | VCC | Positive power supply | | 7 | NC | No connection | | 8 | PD | Power-down input | | 9 | RST | Reset input | | 10 | PH | Phase comparator input | | 11 | Q | Output | | 12 | QN | Complementary output | | 13 | F | Frequency output | | 14 | N | Noise filter input | | 15 | S | Serial data input | | 16 | GND | Ground |

Functional Characteristics

CD74HCT4046AMT offers the following functional characteristics:

• Phase-locked loop (PLL) circuitry
• Voltage-controlled oscillator (VCO)
• Charge pump for frequency synthesis
• Crystal oscillator input
• Power-down and reset functions
• Phase comparator for phase detection
• Noise filter for improved performance
• Serial data input for configuration

Advantages and Disadvantages

Advantages

• High-speed operation enables rapid frequency synthesis
• Low power consumption for energy-efficient designs
• Wide operating voltage range allows flexibility in power supply selection
• Compatibility with TTL logic levels simplifies integration with existing systems
• Schmitt-trigger inputs provide noise immunity for reliable performance

Disadvantages

• Limited number of pins may restrict the complexity of designs
• Requires external components for complete functionality
• Sensitivity to noise and interference in certain environments

Applicable Range of Products

CD74HCT4046AMT is suitable for a wide range of electronic devices that require frequency synthesis and phase-locked loop functionality. It finds applications in areas such as telecommunications, audio equipment, and digital signal processing.

Working Principles

The working principle of CD74HCT4046AMT revolves around its phase-locked loop circuitry. It uses a voltage-controlled oscillator (VCO) to generate an output frequency that is locked to a reference input frequency. The phase comparator compares the phase difference between the VCO output and the reference input, and the charge pump adjusts the VCO frequency accordingly. This feedback loop ensures precise frequency synthesis.

Detailed Application Field Plans

CD74HCT4046AMT can be applied in various fields, including:

1. Telecommunications: Used in frequency synthesizers for wireless communication systems.
2. Audio Equipment: Employed in audio synthesizers and tone generators.
3. Digital Signal Processing: Utilized in digital filters and modulators.
4. Test and Measurement Instruments: Integrated into signal generators and frequency counters.
5. Data Communication: Incorporated in clock recovery circuits for reliable data transmission.

Detailed Alternative Models

Some alternative models to CD74HCT4046AMT include:

1. CD74HC4046E
2. CD74AC4046M96
3. CD74ACT4046QM96
4. CD74HCT4046AE
5. CD74HCT404