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TEA1068 The Philips TEA1068 is a versatile telephone transmission circuit with a dialler interface. It integrates speech and line interface functions for electronic telephone sets.
Mfr Part #:

TEA1068

Available from 2 distributors
Mfr Name: Philips
Philips
The Philips TEA1068 is a versatile telephone transmission circuit with a dialler interface. It integrates speech and line interface functions for electronic telephone sets.
✓ Total Stock: 350 pcs
$ Price Range: $7.19

TEA1068 Available from 2 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Speed Components Ltd ✓
Non-Authorised Inventory information
250 pcs
On Request
250 pcs On Request 1 On Request On Request 8801 On Request On Request
Fe Components ✓
Non-Authorised Inventory information
100 pcs
On Request
100 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

TEA1068 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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TEA1068 Description

Short technical summary and product information.

The TEA1068 from Philips is a bipolar integrated circuit designed for fully electronic telephone sets, handling all speech and line interface functions. It facilitates electronic switching between dialling and speech modes.

 

Key features include a voltage regulator with adjustable static resistance, providing supply for external circuitry. It offers symmetrical high-impedance inputs (64 kΩ) for dynamic, magnetic, or piezoelectric microphones, and an asymmetrical input (32 kΩ) for electret microphones. The circuit supports Dual-Tone Multi-Frequency (DTMF) signal input with a confidence tone, and mute input for pulse or DTMF dialling. A power down input is available for pulse dial or register recall.

 

The TEA1068 also incorporates a receiving amplifier for various earpiece types and provides a large gain setting range for both microphone and earpiece amplifiers. Line current-dependent line loss compensation is available for these amplifiers, with gain control adaptable to exchange supply and DC line voltage adjustment facility.

 

Available in DIP18 and SO20 packages, the TEA1068 operates within an ambient temperature range of -25°C to +75°C.

TEA1068 Quick Information

Product Type: Telephone Transmission Circuit
Canonical Name: TEA1068 Versatile Telephone Transmission Circuit with Dialler Interface
Subcategory: Current Regulation

TEA1068 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

TEA1068 Estimated Pricing

Qty Low High
1+ $7.19 $7.19

Estimated market price range - modelled values for guidance only, not live distributor offers.

TEA1068 Features

  • Integrated voltage regulator with adjustable resistance.
  • High-impedance inputs for various microphone types.
  • DTMF signal input with confidence tone.
  • Line current-dependent line loss compensation.
  • Adaptable gain control for exchange supply.

TEA1068 Applications

  • Used in fully electronic telephone sets.
  • Facilitates electronic switching between dialling and speech.
  • Supports DTMF dialling and register recall.
  • Suitable for various microphone and earpiece types.

TEA1068 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the typical line voltage for the TEA1068?

The typical line voltage for the TEA1068 is 4.45 V at a line current of 15 mA.

What is the maximum line current the TEA1068 can handle?

The TEA1068 can handle a maximum line current of 140 mA during normal operation.

What is the supply voltage for peripherals (VCC) under specific conditions?

With Iline = 15 mA, MUTE = HIGH, and Ip = 1.2 mA, the VCC is typically 3.05 V. With Ip = 1.7 mA, the minimum VCC is 2.5 V.

What is the voltage gain range for the microphone amplifier?

The voltage gain for the microphone amplifier ranges from a minimum of 44 dB to a maximum of 60 dB.

What is the voltage gain range for the receiving amplifier?

The voltage gain for the receiving amplifier ranges from a minimum of 17 dB to a maximum of 39 dB.

What is the operating temperature range for the TEA1068?

The TEA1068 operates within an ambient temperature range of -25°C to +75°C.

What are the input impedance values for the microphone inputs?

The symmetrical microphone inputs have a high impedance of 64 kΩ, while the asymmetrical input for electret microphones is 32 kΩ.

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