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Part Name(s) : UTCTEA1062AN UTCTEA1062N UTC
Unisonic Technologies
Description : LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE View

DESCRIPTION
The UTC TEA1062N / TEA1062AN is a bipolar integrated CIRCUIT performing all speech and line INTERFACE function, required in the fully electronic TELEPHONE sets. It performs electronic switching between dialing speech. The CIRCUIT is able to operate down to D.C. line VOLTAGE of 1.6V (WITH reduced performance) to facilitate the use of more TELEPHONE sets in parallel.

FEATURES
* LOW d.c. line VOLTAGE; operates down to 1.6V (excluding polarity guard).
* VOLTAGE regulator WITH adjustment static resistance.
* Provides supply WITH limited current for external CIRCUITry.
* Symmetrical high-impedance inputs (64kΩ) for dynamic, magnetic or piezoelectric microphones.
* Asymmetrical high-impedance inputs (32kΩ) for electret microphones.
* DTMF signal input WITH confidence tone.
* Mute input for pulse or DTMF dialing.
* Receivering amplifier for several types of earphones.
* Large amplification setting range on microphone and earpiece amplifiers.
* Line loss compensation facility , line current depedant (microphone and earpiece amplifiers).
* Gain control adaptable to exchange supply.
* Possibility to adjust the d.c. line VOLTAGE.

Part Name(s) : TEA1062 TEA1062A Contek
Contek Microelectronics
Description : LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE View

DESCRIPTION
The Contek TEA1062/1062A is a bipolar integrated CIRCUIT performing all speech and line INTERFACE function, required in the fully electronic TELEPHONE sets. It performs electronic switching between dialing speech. The CIRCUIT is able to operate down to D.C. line VOLTAGE of 1.6V (WITH reduced performance) to facilitate the use of more TELEPHONE sets in parallel.

FEATURES
* LOW d.c. line VOLTAGE; operates down to 1.6V ( excluding polarity guard).
* VOLTAGE regulator WITH adjustment static resistance.
* Provides supply WITH limited current for external CIRCUITry.
* Symmetrical high-impedance inputs (64k)for dynamic, magnetic or piezoelectric microphones.
* Asymmetrical high-impedance inputs (32k)for electret microphones.
* DTMF signal input WITH confidence tone.
* Mute input for pulse or DTMF dialing.
* Receivering amplifier for several types of earphones.
* Large amplification setting range on microphone and earpiece amplifiers.
* Line loss compensation facility , line current depedant (microphone and earpiece amplifiers).
* Gain control adaptable to exchange supply.
* Possibility to adjust the d.c. line VOLTAGE.

Part Name(s) : UTCTEA1062A UTCTEA1062 UTC
Unisonic Technologies
Description : LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE View

DESCRIPTION
The UTC TEA1062/1062A is a bipolar integrated CIRCUIT performing all speech and line INTERFACE function, required in the fully electronic TELEPHONE sets. It performs electronic switching between dialing speech. The CIRCUIT is able to operate down to D.C. line VOLTAGE of 1.6V (WITH reduced performance) to facilitate the use of more TELEPHONE sets in parallel.

FEATURES
* LOW d.c. line VOLTAGE; operates down to 1.6V (excluding polarity guard).
* VOLTAGE regulator WITH adjustment static resistance.
* Provides supply WITH limited current for external CIRCUITry.
* Symmetrical high-impedance inputs (64kW)for dynamic, magnetic or piezoelectric microphones.
* Asymmetrical high-impedance inputs (32kW)for electret microphones.
* DTMF signal input WITH confidence tone.
* Mute input for pulse or DTMF dialing.
* Receivering amplifier for several types of earphones.
* Large amplification setting range on microphone and earpiece amplifiers.
* Line loss compensation facility , line current depedant (microphone and earpiece amplifiers).
* Gain control adaptable to exchange supply.
* Possibility to adjust the d.c. line VOLTAGE.

Part Name(s) : TEA1110A TEA1110AT TEA1110AT/C1 Philips
Philips Electronics
Description : LOW VOLTAGE versatile TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE View

GENERAL DESCRIPTION
The TEA1110A is a bipolar integrated CIRCUIT that performs all speech and line INTERFACE functions required in fully electronic TELEPHONE sets. It performs electronic switching between speech and dialling. The IC operates at a line VOLTAGE down to 1.6 V DC (WITH reduced performance) to facilitate the use of TELEPHONE sets connected in parallel.

FEATURES
LOW DC line VOLTAGE; operates down to 1.6 V (excluding VOLTAGE drop over external polarity guard)
VOLTAGE regulator WITH adjustable DC VOLTAGE
• Provides a supply for external CIRCUITs
• Symmetrical high impedance inputs (64 kΩ) for dynamic, magnetic or piezo-electric microphones
• Asymmetrical high impedance input (32 kΩ) for electret microphones
• DTMF input WITH confidence tone
• MUTE input for pulse or DTMF dialling
• Receiving amplifier for dynamic, magnetic or piezo-electric earpieces
• AGC line loss compensation for microphone and earpiece amplifiers.

APPLICATION
• Line powered TELEPHONE sets, cordless TELEPHONEs, fax machines, answering machines.

 


Part Name(s) : TEA1114A TEA1114AT TEA1114AUH TEA1114A/C1 TEA1114AT/C1 TEA1114AT/C2 Philips
Philips Electronics
Description : LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE and regulated strong supply View

GENERAL DESCRIPTION
The TEA1114A is a bipolar integrated CIRCUIT that performs all speech and line INTERFACE functions required in fully electronic TELEPHONE sets. It performs electronic switching between speech and dialling. The IC operates at a line VOLTAGE down to 1.45 V DC (WITH reduced performance) to facilitate the use of TELEPHONE sets connected in parallel.
When the line current is high enough, a fixed amount of current is derived from the LN pin in order to create a strong supply point at pin VDD. The VOLTAGE at pin VDD is regulated to 3.3 V to supply peripherals such as DIALLER, LCD module and microcontroller.

FEATURES
LOW DC line VOLTAGE; operates down to 1.45 V
   (excluding VOLTAGE drop over external polarity guard)
• Line VOLTAGE regulator WITH adjustable DC VOLTAGE
• 3.3 V regulated strong supply point for peripheral CIRCUITs compatible WITH:
   – Speech mode
   – Ringer mode
   – Trickle mode.
• Transmit stage WITH:
   – Microphone amplifier WITH symmetrical high impedance inputs
   – DTMF amplifier WITH confidence tone on receive output.
• Receive stage WITH:
   – Receive amplifier WITH asymmetrical output
   – Earpiece amplifier WITH adjustable gain (and gain boost facility) for all types of earpieces.
• MUTE input for pulse or DTMF dialling
• AGC line loss compensation for microphone and receive amplifiers.

APPLICATIONS
• Line powered TELEPHONE sets WITH LCD module
• Cordless TELEPHONEs
• Fax machines
• Answering machines.

 

Part Name(s) : TEA1066T Philips
Philips Electronics
Description : Versatile TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE View

GENERAL DESCRIPTION
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.

FEATURES
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.

Part Name(s) : TEA1062 TEA1062A UTC
Unisonic Technologies
Description : LOW VOLTAGE TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE View

Part Name(s) : TEA1065 TEA1065T Philips
Philips Electronics
Description : Versatile TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE View

GENERAL DESCRIPTION
The TEA1065 is a bipolar integrated CIRCUIT which performs all speech and line INTERFACE functions that are required in fully electronic TELEPHONE sets WITH adjustable DC mask. The CIRCUIT performs electronic switching between dialling and speech internally.
   
FEATURES
• Current and VOLTAGE regulator mode WITH adjustable
    static resistances
• Provides supply for external CIRCUITry
• Symmetrical high-impedance inputs for piezoelectric
    microphone
• Asymmetrical high-impedance input for electret
    microphone
• DTMF signal input WITH confidence tone
• Mute input for pulse or DTMF dialling
• Power-down input for pulse dial or register recall
• Digital pulse input to drive an external switch transistor
• Receiving amplifier for magnetic, dynamic or
    piezoelectric earpieces
• Large gain setting range on microphone and earpiece
    amplifiers
• Line loss compensation facility, line current dependent
    (on microphone and earpiece amplifiers)
• Adjustable gain control
• DC line VOLTAGE adjustment facility
   

Part Name(s) : TEA1064A TEA1064A/C2 TEA1064AT TEA1064AT/C1 Philips
Philips Electronics
Description : LOW VOLTAGE versatile TELEPHONE TRANSMISSION CIRCUIT WITH DIALLER INTERFACE and transmit level dynamic limiting View

GENERAL DESCRIPTION
The TEA1064A is a bipolar integrated CIRCUIT that performs all the speech and line INTERFACE functions required in fully electronic TELEPHONE sets. It performs electronic switching between dialling and speech and has a powerful DC supply for peripheral CIRCUITs. The IC operates at line
VOLTAGEs down to 1.8 V DC (WITH reduced performance) to facilitate the use of more TELEPHONE sets connected in parallel. The transmit signal on the line is dynamically limited (speech-controlled) to prevent distortion at high transmit levels of both the sending signal and the sidetone.


FEATURES
LOW DC line VOLTAGE; operates down to 1.8 V (excluding polarity guard)
VOLTAGE regulator WITH LOW VOLTAGE drop and adjustable static resistance
• DC line VOLTAGE adjustment facility
• Provides a supply for external CIRCUITs in two options:
unregulated supply, regulated line VOLTAGE;
stabilized supply, line VOLTAGE varies WITH supply
current
• Dynamic limiting (speech-controlled) in transmit direction prevents distortion of line signal and sidetone
• Symmetrical high-impedance inputs (64 kΩ) for dynamic, magnetic or piezo-electric microphones
• Asymmetrical high-impedance input (32 kΩ) for electret microphones
• DTMF signal input
• Confidence tone in the earpiece during DTMF dialling
• Mute input for disabling speech during pulse or DTMF dialling
• Power-down input for improved performance during pulse dial or register recall (flash)
• Receiving amplifier for magnetic, dynamic or piezo-electric earpieces
• Large amplification setting ranges on microphone and earpiece amplifiers
• Line loss compensation (line current dependent) for microphone and earpiece amplifiers (not used for DTMF amplifier)
• Gain control curve adaptable to exchange supply
• Automatic disabling of the DTMF amplifier in extremely-LOW VOLTAGE conditions
• Microphone MUTE function available WITH switch

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