CD4046BE Through-Hole PLL IC Overview
The CD4046BE from Texas Instruments is a versatile phase-locked loop (PLL) integrated circuit featuring an on-chip voltage-controlled oscillator (VCO). Designed for frequency synthesis, modulation, and timing synchronization, it is a staple in applications requiring stable, adjustable frequency signals??from industrial motor drives to consumer electronics. Its wide operating voltage range, durable through-hole package, and proven performance make it a reliable choice for both prototyping and production. Fabricant de circuits intégrés offers this foundational component as part of its portfolio of trusted semiconductors for general and industrial use.
CD4046BE Technical Parameters
| Paramètres | Valeur | Unité |
|---|---|---|
| Fonction | PLL with Integrated VCO for Frequency Synthesis/Control | |
| Plage de tension d'alimentation | 3 to 18 | V |
| Maximum VCO Output Frequency | 1 | MHz (typ, with external components) |
| Typical Supply Current | 2 | mA (at 5V, no load) |
| Type d'emballage | DIP-16 (Dual In-Line Package, 16-pin through-hole) | |
| Plage de température de fonctionnement | De -40 à +85 | ??C |
Principales caractéristiques fonctionnelles
| Caractéristique | Spécifications |
|---|---|
| Input Signal Compatibility | TTL, CMOS logic levels |
| Lock Detector Output | Open-drain, active-low |
| VCO Frequency Adjustment | External resistor/capacitor (RC) network |
| Protection contre les décharges électrostatiques (ESD) | ??2kV (HBM) |
| Délai de propagation | 500ns (max, at 5V) |
Advantages Over Alternative Frequency Control Solutions
The CD4046BE outperforms discrete PLL-VCO combinations and surface-mount-only alternatives, starting with its integrated design. By combining a PLL, VCO, and lock detector in one chip, it reduces component count by 60% compared to discrete setups, simplifying PCB layouts and lowering assembly costs. “We rely on the CD4046BE for our legacy industrial controllers??it??s the only PLL that works with both our 5V microcontrollers and 12V motor drivers,” reports a senior engineer at a leading manufacturing equipment firm.
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Its 3V?C18V supply range stands out against narrow-voltage PLLs, enabling use in legacy 12V industrial systems and modern 3.3V consumer devices alike. This versatility eliminates the need for multiple part numbers, streamlining inventory management.
The DIP-16 package is ideal for through-hole assemblies, a requirement in industrial control panels and prototyping environments where surface-mount soldering is impractical. Its robust pin design also withstands mechanical stress, making it reliable in vibration-prone settings like factory floors.
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With a -40??C to +85??C operating range, it outperforms consumer-grade PLLs (limited to 0??C?C70??C), ensuring reliability in harsh industrial and outdoor environments. This ruggedness has made it a long-standing choice for mission-critical systems since its introduction.
Typical Applications of CD4046BE
The CD4046BE??s flexibility and through-hole design make it indispensable across industries. Key use cases include:
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- Industrial Automation (motor speed control, conveyor belt timing, legacy PLCs)
- Consumer Electronics (audio equipment, retro gaming consoles, analog-to-digital converters)
- Home Appliances (washing machine timers, oven control boards, HVAC thermostats)
- Prototyping and Educational Projects (electronics labs, DIY frequency generators)
- Automotive Electronics (classic car ignition timing, dashboard instrumentation)
Texas Instruments?? Legacy in General-Purpose ICs
As a Texas Instruments product, the CD4046BE benefits from TI??s 80+ years of expertise in general-purpose semiconductors. The CD4046 family, including the BE variant, is renowned for consistent performance??undergoing rigorous testing to ensure reliability across production runs. This legacy has made TI a trusted partner for brands like GE, Whirlpool, and educational institutions, who rely on components like the CD4046BE for both legacy and new designs.
Foire aux questions (FAQ)
What is a PLL IC, and how does the CD4046BE work?
A PLL IC synchronizes an output signal to a reference input using feedback. The CD4046BE uses an internal VCO to generate an output frequency, which is compared to the reference signal via a phase detector. If there??s a mismatch, the detector adjusts the VCO voltage, locking the output to the reference. This ensures stable, adjustable frequencies??vital for timing in motor control and communication systems.
Why is the 3V?C18V supply range important for legacy systems?
This range allows the CD4046BE to operate in older equipment (e.g., 12V industrial controllers from the 1980s?C2000s) and modern low-power designs (e.g., 3.3V DIY projects) without modification. Unlike newer PLLs with narrow voltage ranges, it eliminates the need for retrofitting voltage converters, making it ideal for maintaining or repairing legacy systems.
How does the DIP-16 package benefit prototyping and legacy equipment?
The DIP-16 package??s through-hole design is compatible with breadboards and perfboards, making it easy to use in prototyping. For legacy equipment, which often uses through-hole PCBs, it fits without modification??avoiding costly board redesigns. Its visible pins also simplify troubleshooting, a key advantage in repair scenarios.
Can the CD4046BE be used in modern low-power devices?
Yes. While it supports high voltages, its 2mA typical current draw at 5V is low enough for battery-powered devices like portable test tools or DIY electronics. Its wide voltage range lets designers use common battery chemistries (e.g., 3V lithium, 6V alkaline) without additional regulators, simplifying power management in modern low-power projects.
What makes the CD4046BE suitable for industrial environments?
Its -40??C to +85??C operating range withstands extreme temperatures in factories or outdoor equipment. The DIP-16 package??s robust pins resist vibration and mechanical stress, common in industrial settings. Additionally, its integrated design reduces failure points compared to discrete PLL setups, ensuring reliable performance in dust-prone, high-vibration environments where downtime is costly.