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LC823450 Datasheet

Low Power & High-Resolution Audio Processing System LSI

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LC823450 
Low Power &
High-Resolution Audio
Processing System LSI
for Portable Sound Solution
Description
LC823450 is an ultralow power, 32bit, 192 kHz highresolution
audiocapable signal processing systemonchip (SoC). It consists of
dual ARM CortexM3, 32bit DSP (LPDSP32) core, hard wired MP3
encoder/decoder, and integrated SRAM. It is also equipped with
analog peripheral functionality, such as PLLs, classD stereo HP
amplifier, 6band equalizer and ADCs/DACs. Our proprietary
LPDSP32 supports Noise/Echo cancellation, and playback speed
control capability for MP3, WMA, AAC and PCM with VBR. With
finetuned power management and dedicated hard wired audio
blocks, LC823450 provides a significantly longer battery life without
compromising audio quality, for voice recorders and wearable audio
applications.
This document describes features, basic functions, electrical
specifications, characteristics, application diagram and package
dimension of this LSI.
Features
Ultra Low Power Consumption
Arm® Cortex®M3 Dual Core
Proprietary 32bit DSP Core (LPDSP32)
Internal Large Scale Size SRAM: 1656 kB (1.5 MB + 120 kB)
HighResolution 32bit & 192 kHz Audio Processing Capability
Several DSP Codes Available for Audio Functions
Hard Wired Audio Functions Builtin MP3 Decoder, MP3 Encoder
6 Band Equalizer Synchronous SRC, Asynchronous SRC, etc.
Analog Blocks Builtin
System PLL, Audio PLL
16bit DAC, ClassD amp, etc.
USB2.0 Device and USB2.0 Host with a Integrated PHY
eMMC and SD card I/F
Serial Flash I/F(Quad) with Cache Memory
SPI, UART, I2C, etc.
Typical Applications
Sound Recorders
Wearable Audio Players
Bluetooth Headsets
Smart Phone Accessories
www.onsemi.com
TQFP128 14 x 14/ TQFP128L
CASE 932BA
WLCSP154 5.52 x 5.33
CASE 567LD
LFBGA240 11 x 11
CASE 566EY
ORDERING INFORMATION
See detailed ordering and shipping information on page 53 of
this data sheet.
© Semiconductor Components Industries, LLC, 2017
June, 2018 Rev. 9
1
Publication Order Number:
LC823450/D


  ON Semiconductor Electronic Components Datasheet  

LC823450 Datasheet

Low Power & High-Resolution Audio Processing System LSI

No Preview Available !

LC823450
ABSTRACT
Features
CortexM3 Dual Core, AMBA® (AHB/APB) System
Internal SRAM (1.5M-byte)
Internal ROM (256k-byte). Boot code, Standard
Functions
SDRAM Controller (1 * CS)
64M to 256Mbit SDRAM / Mobile SDRAM
External Memory Controller (2 * CS)
NOR FLASH, SRAM, ROM supported, 8/16 bit I/F
LCD controller supported
Internal ROM boot and External memory device
boot available
DMA Controller (8ch)
Interrupt Controller (External 90ch, Internal 82ch)
SPI (1ch)
Serial Flash I/F (1ch)
Quad SPI, cache memory (16k-byte, 4way set
associative, 128line) function available
1.8V dedicated power supply
UART (3ch)
UART1: w/flow control (CTS, RTS)
UART0, UART2: w/o flow control
I2C (2ch) Single Master, Full/Standard
GPIO (90ch)
Plain Timer w/ Watch Dog Timer (1ch×3)
Multiple Timer (2ch×4)
10bit ADC (6ch)
SD Card I/F (3ch)
eSD/eMMC, UHSI, w/o CPRM
SD0: eSD/eMMC boot supported (Internal ROM
Boot function) 1.8 V dedicated power supply
SD1: Multiplexed w/ Memory Stick I/F
1.8 V dedicated power supply
SD2: 1.8 V dedicated power supply
Memory Stick I/F (1ch)
Multiplexed w/ SD1
USB2.0 Host (HS/FS/LS) Controller, Device
(HS/FS) Controller. Integrated PHY
Xtal (XT1) is required for USB function.
48 MHz for Host, and 12,20,24,48 MHz for device
w/o OTG function. Host and Device share an
integrated PHY.
Real Time Clock
2 modes below are available
General RTC mode: RTC w/o key input
KeyInt RTC mode: RTC w/ key input which
enables power on function
SWD (Serial Wire Debug) is supported as the debug
interface.
SWV (Serial Wire Viewer) is supported as the trace
interfaceOnly one of CortexM3 Dual Core can be
traced.
Availability of features explained here depends on products.
MP31 Hard Wired Encoder/Decoder
MP3 MPEG1, MPEG2, MPEG2.5
Sampling rate: 8 kHz,11.025 kHz,12 kHz,16 kHz,
22.05 kHz, 24 kHz, 32 kHz, 44.1 kHz, 48 kHz
Bit rate:8 Kbps to 320 Kbps (DecoderVBR
supported)
LPDSP32 System
Internal SRAM (120 kbyte)
Internal ROM (220 kbyte)
WMA2 (Microsoft WMA Decoder Profile Level3)
Sampling rate: 8 kHz, 11.025 kHz, 16 kHz,
22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz
Bit rate: 5 Kbps to 320 Kbps (VBR supported)
AAC (MPEG4 LCAAC)
Bit rate: 8 Kbps to 320 Kbps (VBR supported)
Variable Speed Control playback
(0.5 to 4.0 times speed)
While WMA and AAC playback, up to 2.0 time
speed
While PCM playback, up to 4.0 times speed
While MP3 playback w/ hard wired decoder,
up to 4.0 times speed
Noise Canceller, etc.
JTAG ICE
1 MPEG Layer3 audio coding technology licensed from Fraunhofer IIS and Thomson.
Supply of this product does not convey license nor imply any right to distribute content created with this product in revenuegenerating
broadcast systems (terrestrial, satellite, cable and/or other distribution channels), streaming applications (via Internet, intranets and/or
networks), other content distribution systems (payaudio or audioondemand applications and the like) or on physical media (compact
discs, digital versatile discs, semiconductor chips, hard drives, memory cards and the like). For details, please visit http://mp3licensing.-
com/
Supply of this product does not convey license under the relevant intellectual property of Thomson and/or Fraunhofer Gesellschaft nor
imply any right to use this product in any finished end user or readytouse final product. An independent license for such use is required.
For details, please visit http://mp3licensing.com/.
2 This product contain technology of Microsoft company ownership, and you cannot distribute or use without getting license from Microsoft
Licensing company.
www.onsemi.com
2


Part Number LC823450
Description Low Power & High-Resolution Audio Processing System LSI
Maker ON Semiconductor
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