Professional IC Distribution & Technical Solutions

The TEA1064A 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 via external resistor
• Power Dissipation: Max 500 mW
• Operating Temperature Range: -25°C to +75°C
• Package: DIP-16 or SO-16

Descriptions:

The TEA1064A is an integrated circuit designed for analog telephone applications, providing essential functions for speech transmission, dialing, and line interface. It includes features such as automatic line loss compensation (ALC), mute control, and DTMF/loop disconnect dialing compatibility.

Features:

• Speech Network: Includes microphone amplifier, sidetone suppression, and earpiece amplifier.
• Line Interface: Adjustable DC line feed characteristics.
• Mute Function: For pulse or tone dialing.
• Low Standby Current: Suitable for energy-efficient designs.
• DTMF Compatibility: Supports dual-tone multi-frequency signaling.
• Adjustable Gain Control: For microphone and earpiece amplification.

This IC was commonly used in landline telephone handsets and answering machines during its production period.

*(Note: The TEA1064A may be obsolete, and replacement options should be verified with NXP or authorized distributors.)*