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3. TECHNICAL BRIEF
3.18 FM Radio
• Simultaneous operation with Bluetooth
• Support of US/Europe (87.5 to 108 MHz) and Japanese (76 to 90 MHz) FM band
• Wide dynamic range AGC
• Soft mute and stereo blend
• Adjustment-free stereo decoder and AFC
• Autonomous search tuning function (up/down) with programmability (threshold setting)
• RDS demodulator
• Audio output available over Bluetooth audio interface or dedicated audio output
• Control of FM via Bluetooth HCI or I2C
• Adaptive filter to suppress narrow band interference in the FM channel
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Bluetoot
Antenn
2.4
F
Radi
I/O
RO
MM
Processo
2.4 GH
Radi
RA
AUDIO
Driver
UAR
PI
I2S(PCM
R
IN / OU
Main
PMB
8888
RF
Stereo
Analog
u
VBT_2V
BlueCor -5 F
Figure 21. Bluetooth / FM Radio Block Diagram