LM4937 - Audio Sub-System

Product Overview

National Semiconductor

Datasheet Details

Part number	LM4937
Manufacturer	National Semiconductor
File Size	885.30 KB
Description	Audio Sub-System
Datasheet	LM4937 Datasheet
Additional preview pages of the LM4937 datasheet.

Product details

Description

The LM4937 is an integrated audio sub-system designed for mono voice, stereo music cell phones connecting to base band processors with mono differential analog voice paths.

Features

an I2S serial interface for full range audio and an I2C or SPI compatible interface for control. The full range music path features an SNR of 85dB with an 18-bit 48kHz input. Boomer audio power amplifiers are designed specifically to provide high quality output power with a minimal amount of external components. Key Specifications.
POUT, BTL, 8Ω, 3.3V, 1%.
POUT H/P, 32Ω, 3.3V, 1%.
POUT Mono Earpiece, 32Ω, 1%.
Shutdown current.
SNR (DAC + Amplifier) 520mW (typ) 36mW (typ.

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Other Datasheets by National Semiconductor

LM49370 - Audio Sub-System
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LM4934 - 3D Audio Sub-System
LM4935 - Audio Sub-System

Published: Feb 21, 2007 |