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USB Audio Decoder ICs - BU94501AMUV

ROHM's USB Audio Decoder ICs integrate a USB 2.0 host, SD memory card controller, AAC decoder, WMA decoder, MP3 decoder, Audio DAC amp, and a system controller all on a single chip, allowing easy playback of music stored in USB flash memory using an audio player. They can be easily added to virtually any audio device (i.e. CD player, mini-component stereo, portable player, car stereo) for greater functionality.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part Number | BU94501AMUV-E2
Status | Active
Package | VQFN40
Unit Quantity | 2000
Minimum Package Quantity | 2000
Packing Type | Taping
RoHS | Yes

Specifications:

Vcc(Min.)[V]

3.0

Vcc(Max.)[V]

3.6

I/F

I2C BUS

Digital Audio I/F

I2S SPDIF

USB

USB2.0 Full Speed

SD

MMC SD / miniSD / microSD / SDHC

Display information

Number(Folder, File), Reproduction time, Name(Folder, File), Tag(Artist, Album, Title)

MP3

MPEG 1, 2, 2.5 LAYER 1, 2, 3

WMA

WMA9 Standard

AAC

MPEG4 AAC-LC

Operating Temperature (Min.)[°C]

-40

Operating Temperature (Max.)[°C]

85

Features:

・This LSI is an IC which integrates the WAV/AAC/WMA/MP3 decoder with built-in USB host
    interface, SD memory card interface, audio DAC, system control functions and
    internal CORE power supply regulator circuit.
・All the operations, from read of AAC/WMA/MP3/WAV files written in a memory device
    having the USB interface or a SD card to output of these to an audio system using
    KEY or I²C interface commands, are integrated in a single chip.
・The LSI supports external operations in stand-alone mode, which uses a command from
    the KEY input configured using the key matrix (hereinafter referred to as MODE1)
    and in slave mode, which uses a command from the master microcomputer using
    the built-in I²C interface (hereinafter referred to as MODE2). Select either MODE1
    or MODE2 at power ON.
・The LSI supports fast-forward and rewind playing functions.
・The LSI supports browsing function for other file name and direct select play while
    playing the current music. *This is available in MODE2 only.
・The LSI supports output of the information on folder names, file names, ID3TAG
    (V1.0, V.1,1, V2.2, V2.3, V2.4), WMA-TAG and AAC-TAG (iTunes, 3GP Meta-data)
    via the I²C slave interface. *This is available in MODE2 only.
・The LSI supports the audio line output, digital audio serial 3-line (I2S, EIAJ) output and
    digital audio interface (SPDIF) output.
・The IC allows reading from the specified file data within the memory. *This is available in
    MODE2 only.