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TEA1066T from PHILIPS

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TEA1066T

Manufacturer: PHILIPS, PHI, PHILPS

Versatile telephone transmission circuit with dialler interface

Partnumber Manufacturer Quantity Availability
TEA1066T PHILIPS, PHI, PHILPS 6444 In Stock

Description and Introduction

Versatile telephone transmission circuit with dialler interface The TEA1066T is a telephone transmission circuit manufactured by PHILIPS (now NXP Semiconductors). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**  
- **Manufacturer:** PHILIPS (NXP Semiconductors)  
- **Type:** Monolithic integrated telephone transmission circuit  
- **Technology:** Bipolar IC  
- **Package:** 20-pin DIP (Dual In-line Package)  
- **Operating Voltage:** Typically 3V to 12V (line voltage dependent)  
- **Current Consumption:** Low standby current  
- **Applications:** Telephone handsets, speakerphones, and line interfaces  

### **Descriptions:**  
The TEA1066T is designed for use in telephone systems, providing essential functions for speech transmission, dialing, and line interfacing. It integrates multiple functions such as microphone amplification, line driver, and sidetone suppression.  

### **Features:**  
- **Speech Network:** Includes microphone amplifier, line driver, and automatic gain control (AGC).  
- **DTMF Compatibility:** Supports dual-tone multi-frequency (DTMF) dialing.  
- **Sidetone Compensation:** Reduces acoustic feedback between earpiece and microphone.  
- **Low Power Consumption:** Suitable for battery-powered or line-powered applications.  
- **Line Length Compensation:** Adjusts gain based on line impedance.  
- **Hook Switch Detection:** Supports on/off-hook signaling.  

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

Application Scenarios & Design Considerations

Versatile telephone transmission circuit with dialler interface

Alternative Part Number

  • MC34119P --: Speech network / telephone line interface IC with similar function, widely available and pin-compatible in many designs.
  • LM386N --: Low-voltage audio amplifier commonly used as a substitute in telephone speech circuits where the TEA1066T is unavailable.
  • TCA3385 --: Telephone speech circuit IC from a different series offering comparable line interface functionality.
  • LS285 --: Speech network IC for telephone sets offering similar transmit/receive amplification functions.
  • LS1240A --: Telephone speech circuit/ringer IC offering comparable line interface and audio functions for analog telephone applications.
  • MC34018P --: Speakerphone/speech network IC with similar voice-switching and line interface capabilities, usable as a functional alternative.

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