BU94601KV_12 Datasheet, PDF (11/70 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card + iPod

BU94601KV BU94603KV BU94604BKV
Datasheet
●Description of each block’s movement-part2
5. FAT analysis
· Supports FAT16 and FAT 32.
· Supports VFAT (long file name).
· Supports multi-partition up to 1.
· The maximum number of playable folders within each folder is 65534.
· The maximum number of playable files within each folder is 65534.
· The maximum number of playable folders within each device is 65534.
· The playable folder hierarchy is up to 8 layers containing the root directory.
· The playable file extension supports *.m4a, *.3gp, and *.mp4 for AAC, *.wma and *.asf for WMA, *.mp3, *.mp2, and *.mp1 for
MP3. For *.mp2 and *.mp1, play enabled/disabled can be selected. Upper case letters and lower case letters are not
distinguished in the file extension. (BU94601KV supports only *.mp3, *.mp2, and *.mp1.)
· Sorts and plays up to 100 folders and 100 files in the order of UNICODE.
· Possible to obtain up to 64 bytes as the folder name or file name.
· Supports 1 sector of 512, 1024, 2048 and 4096 bytes.
· Playable file size is up to 2Gbyte-1 byte. Although a file over 2Gbyte is recognized as a playable file, 2Gbyte -1byte
part of the file is playable.
6. MP3 decoder
· Supports MPEG audio 1, 2 and 2.5.
· Supports Layer 1, 2 and 3.
· Supports sample rates 8k, 16k, 32k, 11.025k, 22.05k, 44.1k, 12k, 24k and 48kHz.
· Supports bit rate 8 to 320 kbps and VBR (Variable Bit Rate). *Except free format.
· Supports ID3TAG V1.0, V1.1, V2.2, V2.3 and V2.4.
(Up to 64 bytes can be obtained for the names of album, artist, and title.)
7. WMA decoder (BU94601KV doesn’t support.)
· Supports Windows Media Audio 9 standard.
· Not supports DRM.
· Supports sample rates 8k, 16k, 32k, 11.025k, 22.05k, 44.1k, and 48kHz.
· Supports bit rate 5 to 384 kbps and VBR (Variable Bit Rate). *Except free format.
· Supports WMA-TAG.
(Up to 64 bytes can be obtained for the names of album, artist, and title.)
8. AAC decoder (BU94601KV doesn’t support.)
· Supports MPEG4 AAC-LC encoded by iTunes.
· Not supports DRM.
· Supports sample rates 8k, 16k, 32k, 11.025k, 22.05k, 44.1k, 12k, 24k and 48kHz.
· Supports bit rate 8 to 320 kbps and VBR (Variable Bit Rate).
· Supports AAC-TAG(iTunes Meta-data).
(Up to 64 bytes can be obtained for the names of album, artist, and title.)
· The playable file extension supports *.m4a, *.3gp, and *.mp4
· Based on 3GPP TS 26.244.
· Supports file type of m4a, mp42, and 3gpX (numbers with arbitrary X).
*About except for the file encoded by iTunes, when the stream of a gap or video data is included in the file,
it may skip to the following music or skipping may be carried out.
9. Sample rate converter
· Converts all the supported sample rates to 44.1 kHz using a poly-phase operation.
10. System controller
· Controls all the system operations including KEY input, LED output, interface control with the master microcomputer,
USB device access, SD card access, FAT analysis, sort function, MP3 decode, WMA decode and audio output.
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
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TSZ02201-0V2V0E600010-1-2
2012.07.12 Rev.001