Description
The LM4947 is an audio subsystem capable of efficiently delivering 500mW (Class D operation) of continuous average power into a mono 8Ω bridgedtied load (BTL) with 1% THD+N, 37mW (Class AB operation) power channel of continuous average power into stereo 32Ω single-ended (SE) loads with 1% THD+N, or an output capacitor-less (OCL) configuration with identical specification as the SE configuration, from a 3.3V power supply.
Features
- 1.
- 2 I2C Control Interface.
- I2C Programmable Texas Instruments 3D
Audio.
- I2C Controlled 32 Step Digital Volume Control
(-59.5dB to +18dB).
- Three Independent Volume Channels (Left,
Right, Mono).
- Eight Distinct Output Modes.
- Small, 25.
- Bump DSBGA Packaging.
- “Click and Pop” Suppression Circuitry.
- Thermal Shutdown Protection.
- Low Shutdown Current (0.1μA, typ).
- RF Suppression.
- Differential Mono an.