产品概述
描述
The TDA7449 is a volume tone (bass and treble) balance (left/right) processor for quality audio applications in TV systems. Selectable input gain is provided. A serial bus controls all functions.
The AC signal setting is obtained by resistor networks and switches combined with operational amplifiers.
Bipolar/CMOS technology used allows obtaining low distortion, low noise and DC stepping.
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所有功能
- Input multiplexer
- Two stereo inputs
- Selectable input gain for optimal adaptation to different sources
- One stereo output
- Treble and bass control in 2.0 db steps
- Volume control in 1.0 db steps
- Two speaker attenuators:
- Two independent speaker controls in 1.0 db steps to facilitate balance
- Independent mute function
- All functions are programmable via serial bus
- Input multiplexer