Specification	LM4859SP/NOPB

Features	Volume Control, Shutdown, Thermal Protection, Depop, I2C, 3D, Mute
Max Output Power x Channels @ Load	75 mW, 1.6 W
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Type	2-Channel (Stereo) with Stereo Headphones
Package / Case	28-UFQFN Exposed Pad
Supplier Device Package	28-UQFN (5x5)
Type	Class AB
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	2.7 V

LM4859 Series

Part	Supplier Device Package	Type	Package / Case	Max Output Power x Channels @ Load	Output Type	Operating Temperature [Max]	Operating Temperature [Min]	Features	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type
Texas Instruments LM4859SP/NOPB	28-UQFN (5x5)	Class AB	28-UFQFN Exposed Pad	1.6 W 75 mW	2-Channel (Stereo) with Stereo Headphones	85 °C	-40 °C	3D Depop I2C Mute Shutdown Thermal Protection Volume Control	2.7 V	5.5 V	Surface Mount
Texas Instruments LM4859TLX/NOPB	30-DSBGA	Class AB	30-WFBGA	1.6 W 75 mW	2-Channel (Stereo) with Stereo Headphones	85 °C	-40 °C	3D Depop I2C Mute Shutdown Thermal Protection Volume Control	2.7 V	5.5 V	Surface Mount

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	1000	$ 1.69
		2000	$ 1.60
		5000	$ 1.54
Texas Instruments	LARGE T&R	1	$ 2.77
		100	$ 2.43
		250	$ 1.70
		1000	$ 1.37

Description

General part information

LM4859 Series

The LM4859 is an integrated audio sub-system designed for stereo cell phone applications. Operating on a 3.3V supply, it combines a stereo speaker amplifier delivering 495mW per channel into an 8Ω load and a stereo headphone amplifier delivering 33mW per channel into a 32Ω load. It integrates the audio amplifiers, volume control, mixer, power management control, and Texas Instruments 3D enhancement all into a single package. In addition, the LM4859 routes and mixes the stereo and mono inputs into 10 distinct output modes. The LM4859 is controlled through an I2C compatible interface. Other features include an ultra-low current shutdown mode and thermal shutdown protection.

Boomer audio power amplifiers are designed specifically to provide high quality output power with a minimal amount of external components.

The LM4859 is available in a 30–bump TL package and a 28–lead UQFN package.

Documents

Technical documentation and resources

LM4859 Stereo 1.2W Audio Sub-system with 3D Enhancement datasheet (Rev. E)

Data sheet