LC823455 Evaluation Board User's Manual
■This document describes the hardware board of the LC823455 evaluation kit to help you understand the functions and schematics of the board. The block diagrams help you understand large scale schematics. Illustrations with detailed explanations help you learn the functions, and how to use and operate this board. This document applies to the users of this evaluation board as well as designers who plan to use the LC823455 to custom design a board.
●Features:
◆Flexible Development and Evaluation Board
■Header pins to access almost pins of LC823455
■Header pins to connect user’s power supply or PMIC
■Universal area to add user’s circuits or connectors
■Connectors to add ARDUINO shield or Pmod module
◆Three Types of Power Supply Input Connectors
■Micro USB connector (for USB bus−powered operation)
■Industrial standard, 5.5 mm/2.1 mm DC Jack
■JST XH 2-pin connector (for connecting battery)
◆Single 5 V Supply Operation by Onboard Regulators
■PMIC for LC823455DCDC: 1.0 V/1.1 V/1.8 V, LDO: 1.0 V/1.5 V/1.8 V/3.3 V
■RTC Power Supply
◆Dedicated Low Iq LDOs, 0.8 V and 1.0 V
■General-purpose 3.3 V DCDC
■microSD slot dedicated 2.8 V DCDC
■Wi−Fi®/BT dedicated regulators
■ARDUINO shield and Pmod dedicated 3.3 V LDO
◆Audio I/O
■Dedicated DAMP output terminal for SE and BTL
■Dedicated DAMP LC LPF for SE and BTL
■High−Resolution Audio ready external ADC and DAC
■Dedicated Headphone Amplifier for external DAC
■Volume control for Headphone Amplifier
■3.5 mm stereo jacks for analog audio I/O
■2x On−board MEMS digital microphones
◆USB 2.0 Interface
■Device and Host available
■External boost DCDC for Host and OTG operation
■Insertion/Extraction detection
◆Storage
■On−board eMMC and serial flash (selectable)
■1x microSD slotWireless Connectivity
■PCI Express® M.2 connector for Wi−Fi/BT module
■Embedded Artists 1MW (Murata) Wi−Fi/BT M.2 module(#EAR00315)
◆Man−Machine Interface
■8x Push Switch
■2x LED (Red & Green)
■1x Character LCD
◆Development and Debug Ports
■UART with USB−serial bridge (micro USB connector)
■SWD for Cortex®−M3 (20−pin Box Header)
■JTAG for LPDSP (20−pin Box Header)
◆Boot Mode Setting
■Easy setting by two rotary switches
◆Clock
■No external clock source or generator required
■Onboard clock sources:
♦24 MHz crystal resonator for PLL source
♦32.768 kHz crystal resonator for RTC
♦32.768 kHz crystal oscillator for Wi−Fi/BT module
◆Battery Connectivity
■cell Li−Ion Battery available
■Onboard charger IC
■Battery voltage monitor function
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Evaluation Board User's Manual |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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December, 2019 |
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Rev. 0 |
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EVBUM2706/D |
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6.2 MB |
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