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TEA1064B from PHILIPS

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TEA1064B

Manufacturer: PHILIPS, PHI

Low voltage versatile telephone transmission circuit with dialler interface and transmit level dynamic limiting
Partnumber Manufacturer Quantity Availability
TEA1064B PHILIPS, PHI 220 In Stock

Description and Introduction

Low voltage versatile telephone transmission circuit with dialler interface and transmit level dynamic limiting The TEA1064B is a telephone transmission circuit manufactured by PHILIPS (now NXP Semiconductors). Below are its key specifications, descriptions, and features:

### **Specifications:**  
- **Supply Voltage Range:** 3.5V to 12V  
- **Line Current:** Adjustable (typically 10mA to 100mA)  
- **Power Dissipation:** Up to 500mW  
- **Operating Temperature Range:** -25°C to +75°C  
- **Package:** DIP16 or SO16  

### **Descriptions:**  
- Designed for analog telephone sets.  
- Integrates speech transmission, dialing interface, and line voltage regulation.  
- Includes automatic line loss compensation.  
- Supports pulse and tone dialing.  

### **Features:**  
- **Speech Network:** Balanced microphone amplifier and earpiece amplifier.  
- **DTMF Dialing:** Compatible with dual-tone multifrequency signaling.  
- **Pulse Dialing:** Supports loop disconnect dialing.  
- **Mute Function:** For dialing and hook switch operations.  
- **Low Standby Current:** Optimized for power efficiency.  
- **Line Voltage Regulator:** Ensures stable operation under varying line conditions.  

This IC was widely used in landline telephones for its integrated functionality and reliability.

Application Scenarios & Design Considerations

Low voltage versatile telephone transmission circuit with dialler interface and transmit level dynamic limiting

Alternative Part Number

  • MC34119 --: Low-voltage telephone speech circuit with similar function and pinout, widely used as a direct substitute in telephone line interface designs.
  • LM386 --: Low-voltage audio amplifier commonly used in telephone speech circuits; functionally comparable for the audio path though pinout differs.
  • TCA3385 --: Telephone speech circuit IC from a different series with comparable speech transmission function, suitable as a cross-series alternative.
  • 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 TEA1064B is unavailable.

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