Overview
The CD74HC4046AMR3419, produced by Harris Semiconductor (now part of Texas Instruments), is a high-speed silicon-gate CMOS phase-locked-loop (PLL) circuit. This device is part of the 4000 series and is pin compatible with the CD4046B. It is specified in compliance with JEDEC standard number 7. The HC4046A contains a linear voltage-controlled oscillator (VCO) and three different phase comparators (PC1, PC2, and PC3), making it versatile for various applications requiring frequency control and synchronization.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Frequency Range | Up to 18MHz (Typ) at VCC = 5V, Minimum Center Frequency of 12MHz at VCC = 4.5V |
| Supply Voltage Range | VCO Section: 3V to 6V, Digital Section: 2V to 6V |
| Operating Temperature Range | -55°C to 125°C |
| Package Type | SOIC-16 |
| Number of Pins | 16 |
| Fanout | Standard Outputs: 10 LSTTL Loads, Bus Driver Outputs: 15 LSTTL Loads |
| Noise Immunity | NIL = 30%, NIH = 30% of VCC at VCC = 5V |
| RoHS Compliance | Not Compliant (specific to this part number) |
Key Features
- Choice of three phase comparators (PC1, PC2, and PC3)
- EXCLUSIVE-OR, edge-triggered JK flip-flop, and edge-triggered RS flip-flop
- Excellent VCO frequency linearity achieved by linear op-amp techniques
- VCO-inhibit control for ON/OFF keying and low standby power consumption
- Minimal frequency drift
- Wide operating temperature range: -55°C to 125°C
- Balanced propagation delay and transition times
- Significant power reduction compared to LSTTL logic ICs
- High noise immunity
- CMOS input compatibility
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 CD74HC4046AMR3419?
The CD74HC4046AMR3419 is a high-speed silicon-gate CMOS phase-locked-loop (PLL) circuit produced by Harris Semiconductor.
- What is the operating frequency range of the CD74HC4046AMR3419?
The operating frequency range is up to 18MHz (Typ) at VCC = 5V and a minimum center frequency of 12MHz at VCC = 4.5V.
- What is the supply voltage range for the VCO and digital sections?
The VCO section operates from 3V to 6V, and the digital section operates from 2V to 6V.
- What is the operating temperature range of the CD74HC4046AMR3419?
The operating temperature range is -55°C to 125°C.
- What type of package does the CD74HC4046AMR3419 come in?
The device comes in a SOIC-16 package.
- How many pins does the CD74HC4046AMR3419 have?
The device has 16 pins.
- What are the fanout capabilities of the CD74HC4046AMR3419?
The standard outputs can drive 10 LSTTL loads, and the bus driver outputs can drive 15 LSTTL loads.
- Is the CD74HC4046AMR3419 RoHS compliant?
No, this specific part number is not RoHS compliant.
- What are some common applications of the CD74HC4046AMR3419?
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.
- What are the key features of the CD74HC4046AMR3419?
Key features include a choice of three phase comparators, excellent VCO frequency linearity, VCO-inhibit control, minimal frequency drift, and high noise immunity.
