Overview
The CD74HC4046AMG4 is a high-speed silicon-gate CMOS phase-locked-loop (PLL) device produced by Texas Instruments. It is part of the HC4046A series, which is pin compatible with the CD4046B of the '4000B' series. This device is designed to meet JEDEC standard number 7 and is known for its versatility and reliability in various applications.
The CD74HC4046AMG4 integrates a linear voltage-controlled oscillator (VCO) and three different phase comparators, making it suitable for a wide range of frequency-related tasks. Its operating power supply voltage range is from 2V to 6V, and it operates over a wide temperature range of -55°C to 125°C.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Operating Frequency Range | Typical at VCC = 5V | Up to 18MHz |
| Minimum Center Frequency | At VCC = 4.5V | 12MHz |
| Power Supply Voltage Range | VCO Section | 3V to 6V |
| Power Supply Voltage Range | Digital Section | 2V to 6V |
| Operating Temperature Range | -55°C to 125°C | |
| Output Drive (IOL/IOH) | Maximum | 5.2/-5.2 mA |
| Propagation Delay | Typical at Nominal Voltage | 64 ns |
| Package Group | SOIC | |
| Package Size | 16SOIC: 59 mm2: 6 x 9.9 mm |
Key Features
- Operating Frequency Range: Up to 18MHz (typical) at VCC = 5V and a minimum center frequency of 12MHz at VCC = 4.5V.
- Choice of Three Phase Comparators: EXCLUSIVE-OR, Edge-Triggered JK Flip-Flop, and Edge-Triggered RS Flip-Flop.
- Excellent VCO Frequency Linearity: Achieved through the use of a linear VCO.
- VCO-Inhibit Control: For ON/OFF keying and low standby power consumption.
- Minimal Frequency Drift: Ensures stable operation over a wide temperature range.
- High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V.
- Wide Operating Temperature Range: -55°C to 125°C.
- Balanced Propagation Delay and Transition Times: Ensures consistent performance.
- Significant Power Reduction: Compared to LSTTL logic ICs.
Applications
- FM Modulation and Demodulation: Utilizes the PLL for frequency modulation and demodulation tasks.
- Frequency Synthesis and Multiplication: Used in generating and multiplying frequencies.
- Frequency Discrimination: Helps in distinguishing between different frequencies.
- Tone Decoding: Decodes tones in various communication systems.
- Data Synchronization and Conditioning: Ensures data is synchronized and conditioned properly.
- Voltage-to-Frequency Conversion: Converts voltage signals into frequency signals.
- Motor-Speed Control: Used in controlling the speed of motors.
Q & A
- What is the typical operating frequency range of the CD74HC4046AMG4 at VCC = 5V?
Up to 18MHz.
- What are the three phase comparators available in the CD74HC4046AMG4?
EXCLUSIVE-OR, Edge-Triggered JK Flip-Flop, and Edge-Triggered RS Flip-Flop.
- What is the power supply voltage range for the VCO section of the CD74HC4046AMG4?
3V to 6V.
- What is the operating temperature range of the CD74HC4046AMG4?
-55°C to 125°C.
- What is the maximum output drive current for the CD74HC4046AMG4?
5.2/-5.2 mA.
- What is the typical propagation delay at nominal voltage for the CD74HC4046AMG4?
64 ns.
- What package type is the CD74HC4046AMG4 available in?
SOIC (Small Outline Integrated Circuit).
- What are some common applications of the CD74HC4046AMG4?
FM modulation and demodulation, frequency synthesis and multiplication, frequency discrimination, tone decoding, data synchronization and conditioning, voltage-to-frequency conversion, and motor-speed control.
- Is the CD74HC4046AMG4 RoHS compliant?
- What is the significance of the VCO-Inhibit control in the CD74HC4046AMG4?
The VCO-Inhibit control allows for ON/OFF keying and reduces standby power consumption.
