TEA0678 Overview
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.
TEA0678 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 patible
- Differential output stage has