LG A395 Service Manual page 16

3.1.6 Connectivity
• 3 UARTs with hardware flow control and supports of baud rate up to 921600 bps
• USB 2.0 high speed capability
• Multi Media Card, Secure Digital Memory Card host controller with
flexible I/O voltage power
• Supports SDIO interface for SDIO peripherals as well as WIFI connectivity
• I2S interface for Audio application
• I2C master interface for peripheral management including image sensor.
• SPI master interface for peripheral management including digital TV chip.
3.1.7 Power Management
• Li-ion battery charger
• High efficiency bulk converter for core power and memory power supply with programmable voltage scaling
• 14 LDOs for the power supply of memory card, camera, Bluetooth, RF, SIM card, and other diversified
usage
• Six Open-Drain Output Switches to Supply / control the LED
• LDO type Vibrator
• One NMOS switch to control Keypad LED
• Thermal Overload Protection
• Under voltage Lock out Protection
• Over voltage Protection
• Different levels of power down modes with sophisticated software control enables excellent power saving
performance
3.1.8 Radio Interface and Baseband Front End
• Digital PM data path with baseband front-end
• 96dB dynamic range delta-sigma ADC converts the downlink IF baseband I and Q signals to
digital baseband.
• 10-bit D/A Converter for Automatic Power Control.
• Programmable Radio RX filter with adaptive bandwidth control
• Dedicated Rx filter for FB acquisition
• 6-Pin Baseband Parallel Interface(BRI) with programmable driving strength
• support Multi-band
LGE Internal Use Only
LGE Internal Use Only
3. TECHNICAL BRIEF
Copyright © 2007 LG Electronics. Inc. All right reserved.
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Only for training and service purposes
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3. TECHNICAL BRIEF
Only for training and service purposes