BU94605AKV Datasheet, PDF (10/84 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card +CD-ROM+MP3 Record

BU94605AKV BU94607AKV BU94702AKV BU94705AKV
Datasheet
●Description of each block’s movement
-part2
9. FAT analysis
⋅ Supports FAT32, FAT16 and FAT12 file system.
⋅ Supports VFAT (long file name).
⋅ Supports multi-partition up to 1 partition.
⋅ Supports multi-drive up to 1 drive.
⋅ Supports playable folder hierarchies up to 16 hierarchies whose full path including the file name is within 260
characters.
⋅ Supports playable file extension of *.wav for WAV files.
⋅ Supports playable file extensions of *.m4a, *.3gp and *.mp4 for AAC files.
⋅ Supports playable file extensions of *.asf and *.wma for WMA files.
⋅ Supports playable file extensions of *.mp3, *.mp2 and*.mp1 for MP3 files. For *.mp2 and *.mp1, the function allows
you to select whether to play. Does not extinguish between upper case letters and lower case letters of file
extensions.
⋅ Up to 100 folders and 100 files can be sorted and played in the order of UNICODE when sorting functional effective.
⋅ Can obtain 5 file names ahead from current music file.
⋅ Can obtain a folder name or file name within 128 bytes.
⋅ Supports 512, 1024, 2048 and 4096 bytes per sector.
⋅ Playable file size up to 2G-1 byte. A file over 2Gbyte is recognized as a playable file, too. But, it is for 2Gbyte -1byte
that it can play.
⋅ Supports the device size up to FAT specification (2T byte).
10. Control from master microcomputer (little endian order)
⋅ Can control from the master microcomputer using the I²C interface. (This function is available in MODE2 only.)
⋅ Controllable using commands of play, pause, stop, tune skip, tune forward, folder move, device change, volume
setting, repeat change, random play, digital audio output setting, sound effect setting and direct tune selection and
etc.
⋅ Can read information on internal status during play or stop, folder number, file number within the folder, play time, total
number of folders, total number of files, name of folder being played, name of file being played and TAG (title, artist,
album, genre), and etc.
11. MP3 encoder (*3 BU94702AKV and BU94705AKV only.)
⋅ Supports MP3 format encode (MPEG1 Layer3).
⋅ Decoding operation cannot be performed during encoding operation.
⋅ Supports sample rate of 32 k, 44.1 k and 48 kHz.
⋅ Can select encoding bit rate from 32 kbps, 64 kbps, 128 kbps, 192 kbps, 256 kbps and 320 kbps (CBR).
⋅ Supports the writing of the encoded file to USB or SD card.
12. MP3 decoder
⋅ Supports MPEG audio 1, 2 and 2.5.
⋅ Supports Layer1, 2 and 3.
⋅ Supports sample rate of 8 k, 16 k, 32 k, 11.025 k, 22.05 k, 44.1 k, 12 k, 24 k and 48 kHz.
⋅ Supports bit rate of 8 to 320 kbps and VBR (Variable Bit Rate). *Excluding the free format
⋅ Supports ID3TAG V1.0, V1. 1, V2.2, V2.3 and V2.4.
(Up to 128 bytes can obtain for album, artist, title and genre, respectively.)
13. WMA decoder
⋅ Supports Windows Media Audio 9 standard.
⋅ Not supports DRM files.
⋅ Supports sample rate of 8 k, 16 k, 32 k, 11.025 k, 22.05 k, 44.1 k and 48 kHz.
⋅ Supports bit rate of 5 to 384 kbps and VBR (Variable Bit Rate).
⋅ Supports WMA-TAG.
(Up to 128 bytes can obtain for album, artist, title and genre, respectively.)
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
10/80
TSZ02201-0V2V0E600090-1-2
2012.12.10 Rev.002