Ceramic Speaker Driver - National Semiconductor

The LM4961 is an Audio Power Amplifier primarily designed for driving Ceramic Speaker for applications in Cell Phone and PDAs. It integrates a boost converter, with variable output voltage, with an Audio Power Amplifier It is capable of driving 15Vp-p in BTL mode to 2uF+ 30 ohms load, continu- ous average power, with less than 1% distortion (THD+N) from a 3.2VDC power supply. Boomer Audio Power Amplifiers were designed specifically to provide high quality output power with a minimal number of external components. The LM4961 does not require boot- strap capacitors, or snubber circuits therefore it is ideally suited for portable applications requiring high voltage output to drive capacitive loads like Ceramic Speakers. The LM4961 features a low-power consumption shutdown mode. Additionally, the LM4961 features an internal thermal shut- down protection mechanism. The LM4961 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions. The LM4961 is unity-gain stable and CAN be configured by external gain-setting resistors. By National Semiconductor Corporation
LM4961 's PackagesLM4961 's pdf datasheet
LM4961LQ




LM4961 Pinout, Pinouts
LM4961 pinout,Pin out
This is one package pinout of LM4961,If you need more pinouts please download LM4961's pdf datasheet.

LM4961 Application circuits
LM4961 circuits
This is one application circuit of LM4961,If you need more circuits,please download LM4961's pdf datasheet.


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