Overview
The 74HC4046AN,652 from NXP USA Inc. is a high-speed Si-gate CMOS phase-locked loop (PLL) with a voltage-controlled oscillator (VCO). This integrated circuit is designed to meet the requirements of various applications needing frequency synthesis, modulation, and demodulation. It is part of the 74HC4046A series, which is specified in compliance with JEDEC standard no. 7A.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| VCC supply voltage (when VCO is not used) | 2.0 | 5.0 | 6.0 | V |
| VCC supply voltage (VCO section) | 3.0 | 4.5 | 6.0 | V |
| Operating Temperature | -40 | 25 | 125 | °C |
| Center Frequency (typical at VCC = 4.5 V) | - | 17 | - | MHz |
| Input Transition Rise and Fall Rate (VCC = 4.5 V) | - | 1.67 | 139 | ns/V |
| ESD Protection (HBM) | - | - | >2000 | V |
| ESD Protection (CDM) | - | - | >1000 | V |
Key Features
- Low power consumption
- VCO-Inhibit control for ON/OFF keying and low standby power consumption
- 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 exceeding 2000 V (HBM) and 1000 V (CDM)
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 74HC4046AN,652 used for? The 74HC4046AN,652 is used for phase-locked loop applications, including frequency synthesis, modulation, and demodulation.
- What is the operating temperature range of the 74HC4046AN,652? The operating temperature range is from -40°C to 125°C.
- What are the different phase comparators available in the 74HC4046AN,652? The device offers three phase comparators: EXCLUSIVE-OR, Edge-triggered J-K flip-flop, and Edge-triggered RS flip-flop.
- What is the typical center frequency of the VCO at VCC = 4.5 V? The typical center frequency is up to 17 MHz.
- Does the 74HC4046AN,652 have ESD protection? Yes, it has ESD protection exceeding 2000 V (HBM) and 1000 V (CDM).
- How can the VCO be controlled in the 74HC4046AN,652? The VCO can be controlled using the VCO-Inhibit input for ON/OFF keying and to minimize standby power consumption.
- What are some common applications of the 74HC4046AN,652? Common applications include FM modulation and demodulation, frequency synthesis, tone decoding, and motor-speed control.
- What is the supply voltage range for the VCO section? The supply voltage range for the VCO section is from 3.0 V to 6.0 V.
- Is the 74HC4046AN,652 still in production? No, the 74HC4046AN,652 is obsolete and no longer manufactured. However, substitutes like the CD74HC4046AE from Texas Instruments are available.
- What package types are available for the 74HC4046AN,652? The device is available in various packages, including DIP-16 and SOIC-16.
