Overview
The MC74HC4046ADTR2G is a high-performance silicon-gate CMOS phase-locked loop (PLL) device manufactured by Onsemi. This device is similar in function to the MC14046 Metal gate CMOS device and is designed to provide a robust and versatile solution for phase-locking applications. It features three phase comparators, a voltage-controlled oscillator (VCO), and a unity gain op-amp (DEMOUT). The device is compatible with standard CMOS outputs and, with pull-up resistors, can also interface with LSTTL outputs.
Key Specifications
| Parameter | Condition | Value | Unit |
|---|---|---|---|
| Operating Voltage Range | - | 2.0 to 6.0 V | V |
| Input Voltage Range | -0.5 to VCC + 0.5 V | - | V |
| Output Voltage Range | -0.5 to VCC + 0.5 V | - | V |
| Input Current per Pin | - | ±20 mA | mA |
| Output Current per Pin | - | ±25 mA | mA |
| Supply Current (VCC and GND Pins) | - | ±50 mA | mA |
| Storage Temperature Range | - | -65 to +150 °C | °C |
| Lead Temperature (1 mm from Case for 10 secs) | - | 260 °C | °C |
| Minimum High-Level Input Voltage | Vout = 0.1 V or VCC - 0.1 V, |Iout| ≤ 20 μA | 1.5 to 4.2 V | V |
| Maximum Low-Level Input Voltage | Vout = 0.1 V or VCC - 0.1 V, |Iout| ≤ 20 μA | 0.5 to 1.8 V | V |
Key Features
- High noise immunity characteristic of CMOS devices
- Diode protection on all inputs
- Low quiescent current: 80 μA maximum (VCO disabled)
- Three phase comparators and a voltage-controlled oscillator (VCO)
- Unity gain op-amp (DEMOUT)
- Pb-free, halogen-free, and RoHS compliant
- Compatible with standard CMOS outputs and LSTTL outputs with pull-up resistors
Applications
The MC74HC4046ADTR2G is suitable for a variety of applications requiring phase-locking capabilities, such as:
- Frequency synthesis and modulation
- Clock recovery and synchronization
- Phase detection and locking in communication systems
- Audio and video signal processing
- Automotive and industrial control systems
Q & A
- What is the operating voltage range of the MC74HC4046ADTR2G?
The operating voltage range is 2.0 to 6.0 V. - What types of inputs are compatible with the MC74HC4046ADTR2G?
The device inputs are compatible with standard CMOS outputs and, with pull-up resistors, can also interface with LSTTL outputs. - What are the key components of the MC74HC4046ADTR2G?
The device includes three phase comparators, a voltage-controlled oscillator (VCO), and a unity gain op-amp (DEMOUT). - What is the maximum output current per pin for the MC74HC4046ADTR2G?
The maximum output current per pin is ±25 mA. - Is the MC74HC4046ADTR2G RoHS compliant?
Yes, the device is Pb-free, halogen-free, and RoHS compliant. - What is the storage temperature range for the MC74HC4046ADTR2G?
The storage temperature range is -65 to +150 °C. - How many external components are required for the VCO to operate?
The VCO requires two or three external components (R1, R2, C1) to operate. - What is the function of the phase comparators in the MC74HC4046ADTR2G?
The phase comparators provide digital error signals and maintain phase locking between input signals. - Can the MC74HC4046ADTR2G be used in automotive applications?
Yes, it can be used in automotive and industrial control systems. - What is the quiescent current of the MC74HC4046ADTR2G when the VCO is disabled?
The quiescent current is 80 μA maximum when the VCO is disabled.
