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MC34018L-D28-T from UTC

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MC34018L-D28-T

Manufacturer: UTC

VOICE SWITCHED SPEAKER-PHONE CIRCUIT

Partnumber Manufacturer Quantity Availability
MC34018L-D28-T,MC34018LD28T UTC 689 In Stock

Description and Introduction

VOICE SWITCHED SPEAKER-PHONE CIRCUIT The MC34018L-D28-T is a semiconductor device manufactured by UTC (Unisonic Technologies). Below are the factual specifications, descriptions, and features based on available knowledge:

### **Manufacturer:**  
- **UTC (Unisonic Technologies)**  

### **Specifications:**  
- **Part Number:** MC34018L-D28-T  
- **Package:** DIP-28 (Dual In-line Package, 28 pins)  
- **Technology:** CMOS  
- **Function:** Telephone Speech Network IC  
- **Operating Voltage:** Typically 3V to 7V  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
- The MC34018L-D28-T is a monolithic integrated circuit designed for telephone speech network applications.  
- It includes features for hands-free speakerphone operation, such as transmit and receive amplifiers, background noise monitoring, and automatic gain control.  
- The device is optimized for use in analog telephony systems.  

### **Features:**  
- **Hands-Free Operation:** Supports full-duplex speakerphone functionality.  
- **Transmit and Receive Amplifiers:** Includes built-in amplifiers for microphone and speaker signals.  
- **Background Noise Monitoring:** Detects ambient noise levels for improved voice clarity.  
- **Automatic Gain Control (AGC):** Adjusts signal levels dynamically for consistent audio quality.  
- **Low Power Consumption:** Suitable for battery-operated telephony devices.  
- **Integrated Sidetone Cancellation:** Reduces echo effects in speakerphone mode.  

This information is based on the manufacturer's documentation and datasheet for the MC34018L-D28-T. For detailed electrical characteristics and application notes, refer to the official UTC datasheet.

Application Scenarios & Design Considerations

VOICE SWITCHED SPEAKER-PHONE CIRCUIT

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