TEA0675 - NXP

TEA0675 Dual Dolby* B-type noise reduction circuit for playback applications

The TEA0675 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. QUICK REFERENCE DATA SYMBOL VCC ICC.

Features

• Dual noise reduction (NR) channels
• Head pre-amplifiers
• Reverse head switching
• Automatic Music Search (AMS)
• Music scan
• Equalization with electronically switched time constants
• Dolby reference level = 387.5 mV
• 24 pins
• Improved EMC behaviour. GENERAL DESCRIPTION The TEA0675 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 head.