Datasheet Details
| Part number | LM4947 |
|---|---|
| Manufacturer | National Semiconductor (now Texas Instruments) |
| File Size | 1.65 MB |
| Description | Mono Class D and Stereo Audio Subsystem |
| Datasheet |
 LM4947 Datasheet
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General Description
The LM4947 is an audio subsystem capable of efficiently delivering 500mW (Class D operation) of continuous average power into a mono 8Ω bridged-tied 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
Key Features
- a 32-step digital volume control and eight distinct output modes. The digital volume control, 3D enhancement, and output modes are programmed through a two-wire I2C compatible interface that allows flexibility in routing and mixing audio channels. The RF suppression circuitry in the LM4947 makes it wellsuited for GSM mobile phones and other portable.