The LM4941 is a fully differential audio power amplifier primarily designed for demanding applications in mobile phones and other portable communication device applications. It is capable of delivering 1.25 watts of continuous average power to a 8Ω load with less than 1% distortion (THD+N) from a 5VDC power supply. The LM4941 does not require output coupling capacitors or bootstrap capacitors, and therefore is ideally suited for mobile phone and other small form factor applications where minimal PCB space is a primary requirement.
The LM4941 also features proprietary internal circuitry that suppresses the coupling of RF signals into the chip. This is important because certain types of RF signals (such as GSM) can couple into audio amplifiers in such a way that part of the signal is heard through the speaker
| LM4941 | |
| Speaker Channels | Mono |
| Speaker Amp Type | Class-AB |
| Output Power (W) | 1.54 |
| PSRR (dB) | 95 |
| Supply Min (Min) (Volt) | 2.4 |
| Supply Max (Max) (Volt) | 5.5 |
