| TYPE | DESCRIPTION |
|---|
| Mounting Style | Surface Mount |
| Number of Pins | 25 Pin |
| Case/Package | CSBGA-25 |
| Supply Current | 7.4 mA |
| Number of Circuits | 3 Circuit |
| Number of Channels | 3 Channel |
| Common Mode Rejection Ratio | 58 dB |
| Operating Temperature (Max) | 85 ℃ |
| Operating Temperature (Min) | -40 ℃ |
| Minimum CMRR Range | 58 dB |
| Supply Voltage | 2.7V ~ 5.5V |
| TYPE | DESCRIPTION |
|---|
| Product Lifecycle Status | Active |
| Packaging | Tape & Reel (TR) |
| Operating Temperature | -40℃ ~ 85℃ (TA) |
The LM49100 is a fully integrated audio subsystem capable of delivering 1.275W of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N and with a 5V power supply. The LM49100 also has a stereo true-ground headphone amplifier capable of 50mW per channel of continuous average power into a 32Ω single-ended (SE) loads with 1% THD+N.
●The LM49100 has three input channels. One pair of SE inputs can be used with a stereo signal. The other input channel is fully differential and may be used with a mono input signal. The LM49100 features a 32-step digital volume control and ten distinct output modes. The mixer, volume control, and device mode select are controlled through an I2C compatible interface.
●Thermal overload protection prevent the device from being damaged during fault conditions. Superior click and pop suppression eliminates audible transients on power-up/down and during shutdown.
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Mono Class AB Audio Subsystem with a True-Ground Headphone Amplifier
National Semiconductor
IC AUDIO SUBSYSTEM AB 25CSBGA
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