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Details, datasheet, quote on part number:LM4845
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| Part: | LM4845 |
| Category: | Multimedia => Audio => Amplifiers => Power Amplifiers |
| Description: | Output Capacitor-less Audio Subsystem with Programmable National 3D
The LM4845 is an audio power amplifier capable of delivering 500mW of continuous average power into a mono 8 bridged-tied load (BTL) with 1% THD+N, 25mW per channel of continuous average power into stereo 32 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.
The LM4845 features a 32-step digital volume control and eight distinct output modes. The digital volume control, 3D enhancement, and output modes (mono/SE/OCL) are programmed through a two-wire I2C or a three-wire SPI compatible interface that allows flexibility in routing and mixing audio channels. The LM4845 has three input channels: one pair for a two-channel stereo signal and the third for a single-channel mono input.
The LM4845 is designed for cellular phone, PDA, and other portable handheld applications. It delivers high quality output power from a surface-mount package and requires only seven external components in the OCL mode (two additional components in SE mode).
Features
I2C/SPI Control Interface
I2C/SPI programmable National 3D Audio
I2C/SPI controlled 32 step digital volume control (-54dB to +18dB)
Three independent volume channels (Left, Right, Mono)
Eight distinct output modes
microSMD surface mount packaging
"Click and Pop" suppression circuitry
Thermal shutdown protection
Low shutdown current (0.1uA, typ) |
| Company: | National Semiconductor Corporation |
| Datasheet: | Download LM4845 datasheet File size : 1427 kB |
| Request For quote: | Find where to buy LM4845
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