Overview
The 74HC4046AD,652 is a high-speed Si-gate CMOS phase-locked loop (PLL) with a voltage-controlled oscillator (VCO) produced by NXP Semiconductors. This device is part of the 74HC/74HCT family and is specified in compliance with JEDEC standard no 7A. It is designed for low power consumption and features a VCO-Inhibit control for ON/OFF keying and low standby power consumption. The 74HC4046AD is widely used in various applications requiring frequency synthesis, modulation, and demodulation.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | fmax (MHz) | Power dissipation considerations | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|
| 74HC4046AD | 3.0 - 6.0 | CMOS | ± 5.2 | 18 | 21 | low | 115 | 2.8 | SO16 |
Key Features
- Low power consumption
- VCO-Inhibit control for ON/OFF keying and low standby power consumption
- Center frequency up to 17 MHz (typical) at VCC = 4.5 V
- Choice of three phase comparators: EXCLUSIVE-OR, Edge-triggered J-K flip-flop, and Edge-triggered RS flip-flop
- Excellent VCO linearity and low frequency drift with supply voltage and temperature variations
- Zero voltage offset due to operational amplifier buffering
- ESD protection
Applications
- FM 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 typical center frequency of the 74HC4046AD?
The typical center frequency of the 74HC4046AD is up to 17 MHz at VCC = 4.5 V.
- What are the operating power supply voltage ranges for the VCO and digital sections of the 74HC4046AD?
The VCO section operates from 3.0 V to 6.0 V, and the digital section operates from 2.0 V to 6.0 V.
- What types of phase comparators are available in the 74HC4046AD?
The device offers three types of phase comparators: EXCLUSIVE-OR, Edge-triggered J-K flip-flop, and Edge-triggered RS flip-flop.
- What is the package type of the 74HC4046AD,652?
The 74HC4046AD,652 comes in a SO16 (SOT109-1) package.
- What are some common applications of the 74HC4046AD?
Common applications include FM modulation and demodulation, frequency synthesis and multiplication, frequency discrimination, tone decoding, data synchronization and conditioning, voltage-to-frequency conversion, and motor-speed control.
- Does the 74HC4046AD have ESD protection?
- What is the logic switching level of the 74HC4046AD?
The logic switching level is CMOS).
- What is the output drive capability of the 74HC4046AD?
The output drive capability is ± 5.2 mA).
- What is the typical propagation delay (tpd) of the 74HC4046AD?
The typical propagation delay is 18 ns).
- Is the 74HC4046AD RoHS compliant?
