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TEA1118T from PHI,Philips

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TEA1118T

Manufacturer: PHI, PHILIPS, NXP

Versatile cordless transmisssion circuit
Partnumber Manufacturer Quantity Availability
TEA1118T PHI, PHILIPS, NXP 1238 In Stock

Description and Introduction

Versatile cordless transmisssion circuit The TEA1118T is a telephone speech network IC manufactured by PHILIPS (now NXP Semiconductors). Below are its specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Manufacturer:** PHILIPS (NXP Semiconductors)  
- **Type:** Telephone Speech Network IC  
- **Package:** DIP (Dual In-line Package)  
- **Operating Voltage:** Typically 3–12V (for line-powered applications)  
- **Current Consumption:** Low power consumption for line-powered operation  
- **Gain Control:** Adjustable transmit and receive gain  
- **Frequency Response:** Optimized for voice band (300–3400 Hz)  
- **Line Interface:** Designed for 2-wire to 4-wire conversion  

### **Descriptions:**
- The TEA1118T is a monolithic integrated circuit used in telephone handsets and communication devices.  
- It provides essential functions for speech transmission and reception, including amplification and sidetone suppression.  
- The IC is designed for use in analog telephone systems, ensuring compatibility with standard telephone lines.  
- It supports both pulse and tone dialing applications.  

### **Features:**
1. **Transmit and Receive Amplifiers:** Includes built-in amplifiers for microphone and earpiece signals.  
2. **Sidetone Cancellation:** Reduces feedback between the microphone and earpiece.  
3. **Line Voltage Regulation:** Operates efficiently over a range of line voltages.  
4. **Low Power Consumption:** Suitable for line-powered telephony applications.  
5. **Hybrid Function:** Facilitates 2-wire to 4-wire conversion for full-duplex communication.  
6. **Adjustable Gain:** Allows customization of transmit and receive signal levels.  

This information is based on the manufacturer's datasheet and technical documentation. For detailed electrical characteristics and application circuits, refer to the official datasheet.

Application Scenarios & Design Considerations

Versatile cordless transmisssion circuit

Alternative Part Number

  • MC34118DW --: Speech network IC with similar speakerphone function, widely used as a TEA1118 substitute in telephone designs.
  • MC33218ADW --: Comparable telephone speech circuit in SOIC package, functionally interchangeable in many voice network applications.
  • TEA1062AT --: NXP telephone transmission IC with similar speech network role, commonly used where TEA1118 is unavailable.
  • MC34018DW --: Speakerphone/voice-switching IC in the same application class as the TEA1118T, available in SOIC package and widely used as a functional substitute in telephone speech circuits.
  • MC33218AP --: Speech network IC performing similar telephone voice-switching functions; a common cross-reference for Philips TEA-series speech circuits.
  • LS1240A --: Telephone speech/ringer-related IC from a different series that can serve as an alternative in telephone line interface designs where the TEA1118T is used.
  • LM3962N --: Speech network IC offering comparable transmit/receive amplification for telephone applications.
  • TCA3385 --: Telephone speech circuit IC with similar functionality and pin-compatible design in many applications.

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