BU94603KV Functional Specifications
5/57
Confidential
Target Spec 0.12
I.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.)
I.7 WMA decoder
·
Supports Windows Media Audio 9 standard.
·
Not supports DRM.
·
Supports sample rates 8k, 16k, 32k, 11.025k, 22.05k, 44.1k, 12k, 24k 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.)
I.8 AAC decoder
·
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.
I.9 Sample rate converter
·
Converts all the supported sample rates to 44.1 kHz using a poly-phase operation.
I.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.
I.11 KEY matrix controller
·
Controls 12 types of KEY inputs: play/pause, stop, tune forward/fast forward playing, tune backward/fast
backward playing, folder forward, folder backward, 10-tune forward, volume up, volume down, repeat play,
random play and device selection.
I.12 LED controller
·
Controls 7 types of LED outputs: play/pause, error, memory accessing, random playing, repeat playing, USB
selection and SD selection
I.13 Control from the master microcomputer
·
Control from the master microcomputer is enabled using the I2C interface.
·
Through the command operations, the following can be controlled: play, pause, stop, tune forward, tune
backward, fast forward playing, fast backward playing, folder forward, folder backward, 10-tune forward,
10-tune backward, volume up, volume down, device selection, volume setting, repeat selection, random play,
digital audio output setting, sound effect setting, resume data setting and direct tune selection data setting.
·
Controls the following: playing status output, pause, stop, searching, error, folder number, file number within
folder, play time information, number of total folders, number of total files, name of folder being played, name
of file being played, ID3TAG (title, artist and album) , WMATAG (title, artist and album), AACTAG (title, artist
and album), resume data and direct tune selection data (MODE3).
