Part # LM4935 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM4935 Boomer ® Audio Power Amplifier Series Audio Sub-System with Dual-Mode Stereo Headphone & Mono High Efficiency Loudsp


Part Details:

Loudspeaker LM4935 January 2006 Audio LM4935Audio Sub-System with Dual-Mode Stereo Headphone & Amplifiers Sub-System Mono High Efficiency Loudspeaker Amplifiers andMulti-Purpose ADC1.0 General Description j Supply Voltage Range The LM4935 is an integrated audio subsystem that supports BB_V = 1.8V to 4.5V, DD and both analog and digital audio functions. The LM4935 in- D_V & PLL_V = 2.7V to 4.5V DD DD cludes a high quality stereo DAC, a mono ADC, a multi- LS_V & A_V = 2.7V to 5.5V DD DD with purpose SAR ADC, a stereo headphone amplifier, which Multi-Purpose supports output cap-less (OCL) or AC-coupled (SE)modes of n Shutdown Current 1.1 µA operation, a mono earpiece amplifier and a mono high effi- n PSRR @ 217 Hz, A_V = 3.3V, (Headphone) 60 dB DD ciency loudspeaker amplifier. It is designed for demanding n SNR (Stereo DAC to AUXOUT) 88 dB (typ) Dual-Mode applications in mobile phones and other portable devices. n SNR (Mono ADC from Cell Phone In) 90 dB (typ) The LM4935 features a bi-directional I2S serial interface for n SNR (Aux In to Headphones) 98 dB (typ) full range audio and an I2C or SPI compatible interface forcontrol. The stereo DAC path features an SNR of 88 dB with 4.0 Features an 18-bit 48 kHz input. In SE mode the headphone amplifierdelivers at least 33 mW to a 32 single-ended stereo n 18-bit stereo DAC RMS load with less than 1% distortion (THD+N) when A_V =


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LM4935.pdf Datasheet