ON Semiconductor LC823455 User Manual

EVBUM2706/D
LC823455 Evaluation
Board User's Manual
Overview
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.
Handling Precautions for This Board
This board includes many ESD sensitive electronic
devices.
The following items are required to handle this board:
•
Use this board in the ESD Protected Area (EPA).
•
Remove the ESD bag in the EPA.
•
Remove static from your body when using the board.
•
When not in use, store the evaluation board in the ESD
bag.
•
Do not apply excess or reverse voltage to any terminals on
this 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 LC823455
DCDC: 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
© Semiconductor Components Industries, LLC, 2019
December, 2019 − Rev. 0
EVAL BOARD USER'S MANUAL
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 slot
Wireless 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
1
www.onsemi.com
Publication Order Number:
EVBUM2706/D