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LM1868N

Radio System

Partnumber Manufacturer Quantity Availability
LM1868N 1500 In Stock

Description and Introduction

Radio System The LM1868N is a monolithic integrated circuit designed for use in AM radio applications. Here are its key specifications, descriptions, and features:

### **Manufacturer:**  
National Semiconductor (now part of Texas Instruments)  

### **Key Specifications:**  
- **Type:** AM Radio Circuit  
- **Package:** 16-Pin DIP (Dual In-line Package)  
- **Operating Voltage:** 4.5V to 15V  
- **Operating Temperature Range:** 0°C to +70°C  
- **Frequency Range:** Designed for AM broadcast band (typically 535 kHz to 1605 kHz)  

### **Descriptions:**  
The LM1868N integrates multiple functions required for an AM radio receiver, including:  
- RF amplifier  
- Mixer/oscillator  
- IF amplifier  
- Detector  
- Audio preamplifier  

It simplifies AM radio design by reducing the need for external components.  

### **Features:**  
- **Low Power Consumption:** Suitable for battery-operated devices.  
- **High Sensitivity:** Improves weak signal reception.  
- **Built-In AGC (Automatic Gain Control):** Ensures stable output under varying signal strengths.  
- **Integrated Audio Preamp:** Reduces external component count.  
- **Single-Chip Solution:** Combines multiple AM radio functions into one IC.  

The LM1868N is commonly used in portable AM radios and hobbyist projects.  

(Note: This information is based on historical datasheets; verify with current sources for active availability.)

Application Scenarios & Design Considerations

Radio System

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