Overview
The MC74HC4046A is a high-performance silicon-gate CMOS phase-locked loop (PLL) integrated circuit. It is similar in function to the metal-gate CMOS MC14046 and is designed to be compatible with standard CMOS outputs and LSTTL outputs with pull-up resistors. This device is widely used in various applications requiring phase locking, frequency synthesis, and signal processing.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage (VCC) | 3.0 to 6.0 | V |
| Maximum Propagation Delay (SIGIN/COMPIN to PC2OUT) | 230 to 345 | ns |
| Maximum Output Transition Time | 75 to 110 | ns |
| Input Current (except SIGIN and COMPIN) | 1.0 | mA |
| Quiescent Current (VCO disabled) | 80 | mA |
| Operating Temperature Range | -55 to 125 | °C |
| Package Types | SOIC-16, TSSOP-16, PDIP-16 |
Key Features
- Output Drive Capability: 10 LSTTL Loads
- Low Power Consumption Characteristic of CMOS Devices
- Operating Speeds Similar to LSTTL
- Wide Operating Voltage Range: 3.0 to 6.0 V
- Low Input Current: 1.0 mA Maximum (except SIGIN and COMPIN)
- In Compliance with the Requirements Defined by JEDEC Standard No. 7A
- Low Quiescent Current: 80 mA Maximum (VCO disabled)
- High Noise Immunity Characteristic of CMOS Devices
- Diode Protection on all Inputs
- Chip Complexity: 279 FETs or 70 Equivalent Gates
- Pb-Free Packages are 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 MC74HC4046A used for?
The MC74HC4046A is used as a phase-locked loop (PLL) in various applications such as FM and FSK modulation, frequency synthesis, and signal processing. - What are the operating voltage ranges for the MC74HC4046A?
The operating voltage range for the MC74HC4046A is 3.0 to 6.0 V. - What are the package types available for the MC74HC4046A?
The MC74HC4046A is available in SOIC-16, TSSOP-16, and PDIP-16 package types. - Does the MC74HC4046A have input protection?
Yes, the MC74HC4046A has diode protection on all inputs. - What is the maximum propagation delay for the MC74HC4046A?
The maximum propagation delay for the MC74HC4046A ranges from 230 to 345 ns. - Is the MC74HC4046A Pb-free?
Yes, Pb-free packages are available for the MC74HC4046A. - What is the quiescent current when the VCO is disabled?
The quiescent current when the VCO is disabled is 80 mA maximum. - What are some common applications of the MC74HC4046A?
Common applications include FM and FSK modulation, frequency synthesis, tone decoding, data synchronization, and motor speed control. - How many LSTTL loads can the MC74HC4046A drive?
The MC74HC4046A can drive up to 10 LSTTL loads. - What is the chip complexity of the MC74HC4046A?
The chip complexity of the MC74HC4046A is 279 FETs or 70 equivalent gates.
