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| ![LM4549AVH LM4549AVH](https://oss.origin-ic.net/productThumbImages/MFG_2K_tmb.jpg) | | | 联系我们 | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C (TA) | 48-LQFP | 48-LQFP (7x7) | - | 3V ~ 5.5V | 18 b | 2 / 2 | Yes | - | 90 / 89 | 4.2V ~ 5.5V | - | LM4549 | AC '97, Stereo Audio | AC '97, Stereo Audio |
| ![LM4549AVHX LM4549AVHX](https://oss.origin-ic.net/productThumbImages/MFG_2K_tmb.jpg) | | | 联系我们 | PCB Symbol, Footprint & 3D Model | Surface Mount | -40°C ~ 85°C (TA) | 48-LQFP | 48-LQFP (7x7) | - | 3V ~ 5.5V | 18 b | 2 / 2 | Yes | - | 90 / 89 | 4.2V ~ 5.5V | - | LM4549 | AC '97, Stereo Audio | AC '97, Stereo Audio |