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LC72121

PLL Frequency Synthesizers for Electronic Tuning

Partnumber Manufacturer Quantity Availability
LC72121 1066 In Stock

Description and Introduction

PLL Frequency Synthesizers for Electronic Tuning The LC72121 is a PLL (Phase-Locked Loop) frequency synthesizer IC manufactured by ON Semiconductor (formerly Sanyo Semiconductor).  

### **Key Specifications:**  
- **Frequency Range:** Supports VHF and UHF bands (exact range depends on external components).  
- **Supply Voltage:** Typically operates at **2.7V to 5.5V**.  
- **Low Power Consumption:** Designed for battery-operated devices.  
- **Serial Data Interface:** Uses I²C or similar serial communication for control.  
- **Built-in Prescaler:** Supports programmable divider ratios.  
- **Phase Comparator:** Includes a digital phase comparator for stable frequency synthesis.  
- **Package Type:** Available in **SSOP (Shrink Small Outline Package)** or similar surface-mount packages.  

### **Descriptions & Features:**  
- Designed for **radio tuners**, **FM/AM receivers**, and **wireless communication systems**.  
- Integrates a **programmable divider**, **reference oscillator**, and **phase detector** for frequency synthesis.  
- Supports **automatic frequency control (AFC)** for stable tuning.  
- Low phase noise and high frequency stability.  
- Compatible with **microcontroller-based systems** for easy integration.  

For exact specifications, refer to the official **LC72121 datasheet** from ON Semiconductor.

Application Scenarios & Design Considerations

PLL Frequency Synthesizers for Electronic Tuning

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