Datasheet Details
| Part number | LM4890 |
|---|---|
| Manufacturer | National Semiconductor (now Texas Instruments) |
| File Size | 1.18 MB |
| Description | 1 Watt Audio Power Amplifier |
| Datasheet |
 LM4890 Datasheet
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General Description
The LM4890 is an audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications.
It is capable of delivering 1 watt of continuous average power to an 8Ω BTL load with less than 1% distortion (THD+N) from a 5VDC power supply.
Key Features
- a low-power consumption shutdown mode, which is achieved by driving the shutdown pin with logic low. Additionally, the LM4890 features an internal thermal shutdown protection mechanism. The LM4890 contains advanced pop & click circuitry which eliminates noises which would otherwise occur during turn-on and turn-off transitions. The LM4890 is unity-gain stable and can be configured by external gain-setting resistors. Key Specifications j PSRR at 217Hz, VDD = 5V (Fig. 1) j Power Output at 5.0V &.