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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
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3. TECHNICAL BRIEF
3.1.15 Voice Interface and Voice Front End
• Two microphone inputs sharing one low noise amplifier with programmable gain and automatic
gain control(AGC) mechanism
• Voice power amplifier with programmable gain
• 2
nd
order Sigma-delta A/D Converter for voice uplink path
• D/A Converter for voice downlink path
• Supporter for voice downlink path
• Supports half-duplex hands-free operation
• Compliant with GSM 03.05
3.1.16 LCD Interface
• Dedicated Parallel Interface supports 2 external 8/9 bit Parallel Interface, and Serial interface for LCM
3.1.17 LCD Controller
• Supports LCM format: RGB332, RGB444, RGB565, RGB666, RGB888
• Supports LCD module with maximum resolution up to 240x320 at 16bpp
• Capable of combining display memories with up to 4 blending layers
• Accelerated Gamma correction with programmable gamma table.
• Supports hardware display rotation for each layer
3.1.18 Audio CODEC
• Wavetable synthesis with up to 64 tones
• Advanced wavetable synthesizer capable of generating and 47 sets of percussions
• PCM Playback and Record
• Digital Audio Playback
3.1.19 Audio Interface and Audio Front End
• Supports I2S interface
• High resolution D/A Converters for Stereo Audio playback
• Stereo analog input for stereo audio source
• Analog multiplexer for Stereo Audio
• FM Radio Recording
• Stereo to Mono Conversion
• HE-AAC decode support
Содержание LG-A155
Страница 1: ...Service Manual Model LG A155 Internal Use Only Service Manual LG A155 Date October 2010 Issue 1 0 ...
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