MM74HC4046SJ

Product Overview

• Category: Integrated Circuit (IC)
• Use: Phase-Locked Loop (PLL) with Voltage Controlled Oscillator (VCO)
• Characteristics: High-speed operation, low power consumption, wide operating voltage range
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: The MM74HC4046SJ is a versatile PLL IC that can be used in various applications requiring frequency synthesis and synchronization.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Supply Voltage Range: 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• Maximum Input Frequency: 10MHz
• Maximum Output Frequency: 10MHz
• Lock Range: ±5% of VCO Center Frequency
• Phase Detector Frequency Range: DC to 10MHz
• Charge Pump Current: 1.5mA
• Reference Input Voltage Range: 0V to VCC
• VCO Control Voltage Range: 0V to VCC

Pin Configuration

The MM74HC4046SJ has a total of 16 pins arranged as follows:

```

---

| | --|1 16|-- VCC --|2 15|-- GND --|3 14|-- VCO Out --|4 13|-- VCO In --|5 12|-- Phase Comparator In B --|6 11|-- Phase Comparator In A --|7 10|-- Phase Comparator Out --|8 9|-- Charge Pump Out |___________| ```

Functional Features

• Phase comparator with two inputs and one output
• Voltage-controlled oscillator (VCO) with input and output
• Charge pump with output
• Lock detection circuitry

Advantages and Disadvantages

Advantages: - High-speed operation allows for quick frequency synthesis. - Low power consumption makes it suitable for battery-powered devices. - Wide operating voltage range provides flexibility in various applications.

Disadvantages: - Limited maximum input and output frequencies (10MHz). - Lock range is limited to ±5% of VCO center frequency.

Working Principles

The MM74HC4046SJ operates based on the principles of phase-locked loop (PLL). It compares the phase and frequency of an input signal with that of a reference signal. The phase comparator generates an error signal, which is then filtered and used to control the VCO's frequency. The charge pump converts the filtered error signal into a control voltage for the VCO. The lock detection circuitry monitors the PLL's lock status.

Detailed Application Field Plans

The MM74HC4046SJ can be used in various applications, including: 1. Frequency synthesizers 2. Clock recovery circuits 3. FM demodulators 4. Frequency shift keying (FSK) modulators/demodulators 5. Phase-locked loop (PLL) circuits

Alternative Models

Here are some alternative models that can be considered as alternatives to the MM74HC4046SJ: 1. CD4046BE by Texas Instruments 2. MC14046B by ON Semiconductor 3. HEF4046BP by NXP Semiconductors 4. 74HCT4046A by Nexperia

These alternative models offer similar functionality and can be used as replacements depending on specific requirements.

In conclusion, the MM74HC4046SJ is a versatile PLL IC that offers high-speed operation, low power consumption, and wide operating voltage range. Its functional features, such as the phase comparator, VCO, and charge pump, make it suitable for various applications. However, it has limitations in terms of maximum input/output frequencies and lock range. Alternative models are available to cater to different needs.