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TEA0678 Datasheet Dual Dolby* B-type noise reduction circuit/ automatic music search/ with differential outputs and mute

Manufacturer: NXP Semiconductors

Overview: INTEGRATED CIRCUITS DATA SHEET TEA0678 Dual Dolby* B-type noise reduction circuit, automatic music search, with differential outputs and mute Preliminary specification Supersedes data of August 1993 File under Integrated.

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Datasheet Details

Part number TEA0678
Manufacturer NXP Semiconductors
File Size 319.49 KB
Description Dual Dolby* B-type noise reduction circuit/ automatic music search/ with differential outputs and mute
Download TEA0678 Download (PDF)

General Description

TEA0678 The TEA0678 is a bipolar integrated circuit that provides two channels of Dolby B noise reduction for playback applications in car radios.

It includes head and equalization amplifiers with electronically switchable time constants.

Furthermore it includes electronically switchable inputs for tape drivers with reverse heads.

Key Features

  • Dual noise reduction (NR) channels.
  • Head pre-amplifiers.
  • Reverse head switching.
  • Automatic Music Search (AMS).
  • Mute position.
  • Equalization with electronically switched time constants.
  • Dolby reference level = 387.5 mV.
  • 32 pins.
  • Switch inputs TTL compatible.
  • Differential output stage has:.
  • Capability to drive 1.2 nF capacitive load.
  • Capability to drive 1 kΩ load.
  • Short-circuit proo.

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