LM4946 Output Capacitor-Less Audio Subsystem

Texas Instruments

Description

LM4946 www.ti.com SNAS335E * JANUARY 2006 * REVISED AUGUST 2007 LM4946 Output Capacitor-Less Audio Subsystem with Programmable TI .
The LM4946 is an audio power amplifier capable of delivering 540mW of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N, 3.

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Datasheet Specifications

Part number: LM4946
Manufacturer: Texas Instruments ↗
File Size: 1.48 MB
Datasheet: LM4946-etcTI.pdf
Description: Output Capacitor-Less Audio Subsystem

Features

* 1
* 2 I2C/SPI Control Interface
* I2C/SPI Programmable TI 3D Audio
* I2C/SPI Controlled 32 Step Digital Volume Control (-54dB to +18dB)
* Three Independent Volume Channels (Left, Right, Mono)
* Eight Distinct Output Modes
* WQFN and DSBGA Surface Mount

Applications

* Mobile Phones
* PDAs KEY SPECIFICATIONS
* THD+N at 1kHz, 540mW into 8Ω BTL (3.3V) 1.0% (typ)
* THD+N at 1kHz, 35mW into 32Ω SE (3.3V) 1.0% (typ)
* Single Supply Operation (VDD) 2.7 to 5.5V
* I2C/SPI Single Supply Operation
* WQFN 2.2 to 5.5V

LM4946 Distributors

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LM4946 Output Capacitor-Less Audio Subsystem Texas Instruments

Texas Instruments LM4946-like datasheet