Overview
The 74HC4046AD/AUJ is a high-speed Si-gate CMOS phase-locked loop (PLL) with a voltage-controlled oscillator (VCO) produced by NXP USA Inc. This device is part of the 74HC4046A and 74HCT4046A family and is specified in compliance with JEDEC standard no 7A. It is designed for low power consumption and offers various features that make it suitable for a range of applications requiring precise frequency control and synchronization.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Power dissipation considerations | Package name |
|---|---|---|---|---|---|---|---|
| 74HC4046AD | 3.0 - 6.0 | CMOS | ± 5.2 | 18 | 21 | Low | SO16 (SOT109-1) |
Key Features
- Low power consumption: Designed to minimize power usage, making it suitable for battery-powered devices.
- VCO-Inhibit control: Allows for ON/OFF keying and low standby power consumption.
- Choice of three phase comparators: EXCLUSIVE-OR (PC1), edge-triggered J-K flip-flop (PC2), and edge-triggered RS flip-flop (PC3).
- Excellent VCO linearity: Ensures stable and predictable frequency output.
- Low frequency drift with supply voltage and temperature variations: Maintains stability across different operating conditions.
Applications
The 74HC4046AD/AUJ is versatile and can be used in various applications, including:
- Frequency synthesis and modulation: In systems requiring precise frequency control, such as radio transmitters and receivers.
- Clock recovery and synchronization: In digital communication systems to synchronize data transmission.
- Audio and video equipment: For phase-locking and frequency stabilization in audio and video systems.
- Industrial control systems: Where precise timing and synchronization are critical.
Q & A
- What is the typical center frequency of the 74HC4046AD/AUJ at VCC = 4.5 V?
The typical center frequency is up to 17 MHz at VCC = 4.5 V. - What are the logic switching levels of the 74HC4046AD/AUJ?
The logic switching levels are CMOS. - What is the output drive capability of the 74HC4046AD/AUJ?
The output drive capability is ± 5.2 mA. - What is the maximum operating frequency of the 74HC4046AD/AUJ?
The maximum operating frequency is 21 MHz. - What type of package does the 74HC4046AD/AUJ come in?
The device comes in a SO16 (SOT109-1) package. - What are the operating temperature ranges for the 74HC4046AD/AUJ?
The operating temperature range is -40°C to 125°C. - Does the 74HC4046AD/AUJ support VCO-Inhibit control?
Yes, it supports VCO-Inhibit control for ON/OFF keying and low standby power consumption. - How many phase comparators does the 74HC4046AD/AUJ offer?
It offers three phase comparators: EXCLUSIVE-OR, edge-triggered J-K flip-flop, and edge-triggered RS flip-flop. - Is the 74HC4046AD/AUJ compliant with any specific standards?
Yes, it is specified in compliance with JEDEC standard no 7A. - Where can I purchase the 74HC4046AD/AUJ?
You can purchase it from various distributors such as Digi-Key, Mouser, and through Nexperia's sales organization.
