LM49350RL/NOPB Integrated Circuits (ICs)

Series:	Boomer®
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Class D
Output Type:	1-Channel (Mono) with Mono and Stereo Headphones
Max Output Power x Channels @ Load:	2W x 1 @ 4 Ohm; 69mW x 2 @ 32 Ohm
Voltage - Supply:	2.7 V ~ 5.5 V
Features:	3D, DAC, Depop, I²C, I²S, Mute, Short-Circuit and Thermal Protection, Shutdown, Volume Control
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	36-DSBGA (3.5x3.24)
Package / Case:	36-WFBGA, DSBGA
Base Part Number:	LM49350

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LM49350RL/NOPB Application Field and Working Principle

The LM49350RL/NOPB is a low voltage audio amplifier, designed for use in audio applications such as mobile phones, portable media players, and other portable audio products. This amplifier is designed to meet the demands of high-fidelity audio playback in a wide range of devices.The LM49350RL/NOPB is ideally suited for use in both single and multi-channel configurations, and is capable of providing up to 4 μV output and more than 90 dB SNR with only 1V supply. It has an integrated power supply and a low-power audio output stage, making it highly efficient and capable of being used in a variety of systems. This amplifier is fully qualified to perform above the 200mV Class D audio specification, making it an ideal choice for applications requiring high-fidelity audio playback.The LM49350 is a two-stage amplifier consisting of an amplifier circuit and a power supply. The amplifier circuit consists of two transistors, two capacitors, two resistors, a cross coupled current mirror and bias circuitry. The voltage gain of the LM49350RL/NOPB is determined by the ratio of the feedback resistance to the input resistance and is set to approximately 1V/V. The power supply is designed to provide the necessary current and voltage to the amplifier stage. It is a dual, low drop-out linear regulator that provides a low-noise, regulated power supply with a maximum output current of up to 800mA. The integrated power supply also ensures that the outputs remain stable at high output currents.In addition to its high audio fidelity, the LM49350RL/NOPB is also highly versatile. It has an adjustable gain range of 0-24dB, which allows it to be used in applications where adjustable audio output levels are required. The amplifier is also capable of receiving and amplifying input signals from a variety of sources, allowing it to be used in a variety of audio systems.Overall, the LM49350RL/NOPB is an ideal amplifier for use in audio-related applications requiring a highly efficient, versatile, and low-noise amplifier capable of delivering crystal-clear sound quality. It is well suited for use in a variety of audio systems, offering a wide range of adjustable gains for optimal audio performance.

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