Philips TEA1066T/C1 Versatile Telephone Transmission Circuit with Dialler OM181F


296 in stock

SKU: OM0181F Category:


Philips TEA1066T/C1

Versatile Telephone Transmission Circuit with Dialler

SO20: plastic small outline package; 20 leads; body width 7.5 mm   

Surface mount taped and reeled 

1 piece

You will receive a section of surface mount tape cut from the original reel containing the quantity ordered.

The first image above shows the parts as they are packed, ie. on the surface mount tape, the second is a photograph of the actual reel of 296 pieces of the Philips TEA1066T/C1 that we have in stock at time of listing.


• Voltage regulator with adjustable static resistance 

• Provides supply for external circuitry 

• Symmetrical low-impedance inputs for dynamic and magnetic microphones 

• Symmetrical high-impedance inputs for piezoelectric microphone 

• Asymmetrical high-impedance input for electret microphone 

• Dual-tone multi-frequency (DTMF) signal input with confidence tone

 • Mute input for pulse or DTMF dialling 

• Power down input for pulse dial or register recall • 

Receiving amplifier for magnetic, dynamic or piezoelectric earpieces •

 Large gain setting range on microphone and earpiece amplifiers •

 Line loss compensation facility, line current dependent (microphone and earpiece amplifiers) 

• Gain control adaptable to exchange supply

 • DC line voltage adjustment facility. 


The TEA1066T is a bipolar integrated circuit that performs all speech and line interface functions required in fully electronic telephone sets. 

The circuit performs electronic switching between dialling and speech.


Additional information