Overview
The MC74HC4046AFELG is a high-performance silicon-gate CMOS phase-locked loop (PLL) device produced by ON Semiconductor. It is designed to be similar in function to the metal-gate CMOS MC14046 device. This component is versatile and can be used in a variety of applications requiring frequency synthesis, modulation, and demodulation. The device features three phase comparators, a voltage-controlled oscillator (VCO), and a demodulator, making it suitable for complex signal processing tasks.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 3.0 to 6.0 | V |
| Maximum High-Level Input Voltage (VIH) | 2.1 to 4.2 | V |
| Maximum Low-Level Input Voltage (VIL) | 0.9 to 1.8 | V |
| Maximum Propagation Delay (SIGIN/COMPIN to PC2OUT) | 39 to 230 | ns |
| Maximum Output Transition Time | 13 to 110 | ns |
| Quiescent Current (VCO disabled) | 80 | mA |
| Output Drive Capability | 10 LSTTL Loads | |
| Operating Temperature Range | -55°C to 125°C |
Key Features
- High-performance silicon-gate CMOS technology
- Three phase comparators with AC coupling capability
- Voltage-controlled oscillator (VCO) with high-speed CMOS output
- Demodulator output with low offset voltage
- Low power consumption characteristic of CMOS devices
- Wide operating voltage range: 3.0 to 6.0 V
- Low input current: 1.0 mA maximum (except SIGIN and COMPIN)
- High noise immunity characteristic of CMOS devices
- Diode protection on all inputs
- Pb-free packages available
Applications
- FM and FSK modulation and demodulation
- Frequency synthesis and multiplication
- Frequency discrimination
- Tone decoding
- Data synchronization and conditioning
- Voltage-to-frequency conversion
- Motor speed control
Q & A
- What is the MC74HC4046AFELG used for?
The MC74HC4046AFELG is used for various applications including FM and FSK modulation and demodulation, frequency synthesis, frequency discrimination, tone decoding, data synchronization, voltage-to-frequency conversion, and motor speed control.
- What is the operating voltage range of the MC74HC4046AFELG?
The operating voltage range is from 3.0 to 6.0 volts.
- What are the key components of the MC74HC4046AFELG?
The device includes three phase comparators, a voltage-controlled oscillator (VCO), and a demodulator.
- What is the maximum propagation delay of the MC74HC4046AFELG?
The maximum propagation delay from SIGIN/COMPIN to PC2OUT is between 39 to 230 nanoseconds.
- Does the MC74HC4046AFELG have Pb-free packages available?
- What is the output drive capability of the MC74HC4046AFELG?
The device can drive up to 10 LSTTL loads.
- What is the quiescent current when the VCO is disabled?
The quiescent current is 80 mA maximum when the VCO is disabled.
- What is the temperature range for the MC74HC4046AFELG?
The operating temperature range is from -55°C to 125°C.
- Does the MC74HC4046AFELG have diode protection on its inputs?
- What type of technology is used in the MC74HC4046AFELG?
The device uses high-performance silicon-gate CMOS technology.
