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LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
3.3.5 MIDI (Ring Tone Play)
This section provides a detailed description of the MIDI and WAV-file functions.
Figure 3-3-6, External MIDI path
3.3.6 MP3 (Audio Player)
This section provides a detailed description of the MP3 file functions.
Figure 3-3-7. MP3 Scheme
MP3 function supports PCM 44/48KHz sampling rate.The PCM44/48 RX-path is intended to be used
as a audio amp and one speaker.
In Figure 3-3-6, External MIDI path is the same as Voice Loudspeaker downlink Mode ,
except source in Audio System (DSP and Audio Mixer).
MIDI : DBB chip (DB3200)
Æ
PCM Decoder
Æ
audio amplifier (DPGA, PGA)
Æ
SPKRP/N Port
Æ
AUDIO AMP(MAX9877)
Æ
Speaker(8
Ω
)