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LC823450: Low Power & High-Resolution Audio Processing System-on-Chip (SoC)

Datasheet: Low Power & High-Resolution Audio Processing System LSI for Portable Sound Solution
Rev. 10 (895kB)
Product Overview
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»View Material Composition
» Product Change Notification
LC823450 is an ultra-low power, 32-bit, 192 kHz high-resolution audio-capable signal processing system-on-chip (SoC). It consists of dual ARM Cortex-M3, 32-bit DSP (LPDSP32) core, hard wired MP3 encoder/decoder, and integrated SRAM. It is also equipped with analog peripheral functionality, such as PLLs, class-D stereo HP amplifier, 6-band 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 fine-tuned 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.
Features   Benefits
     
  • ARM® Cortex®-M3 Dual Core
 
  • Dual Core and DSP enables parallel processing.
  • I2S I/F with 16/24/32-bit, MAX 192 kHz (2-ch x 2) audio functions with 16/24/32-bit, MAX 192 kHz
 
  • High-Resolution Audio processing capability with 32-bit 192 kHz
  • Various original DSP codes for audio processing: MP3 codec, FLAC codec, Noise Cancel, Variable speed playback, etc.
 
  • Possible to reduce DSP codes development cost.
    Several DSP codes are available with no additional fee such as Noise cancel, Variable speed playback, etc.
  • Internal SRAM (1656K byte) for ARM® Cortex®-M3 Dual Core and original DSP
 
  • Large scale program can be implemented by large capacity memory.
  • Hard wired audio functions:
    • MP3 encoder and decoder
    • EQ (6-band equalizer)
    • ASRC (Asynchronous Sample Rate Converter)
 
  • Low power audio processing by hard wired audio functions
    (Reference: 4 mA @128K bps, 44.1 kHz MP3 hardware playback)
  • Integrated analog functions:
    • low-power Class D HP amplifier
    • System PLL
    • dedicated audio PLL, ADC
 
  • PCB space and cost is reduced by Integrated analog functions.
  • Various interfaces:
    • USB2.0 HS device / host (not OTG)
    • eMMC
    • SD card
    • SPI, I2C
 
  • Various functions (SBC/AAC codec with the DSP, UART, ASRC) contribute to Bluetooth®audio.
  • Oscillation controller to dynamically switch clock frequency
 
  • Switching clock frequency by oscillation controller reduces unnecessary power consumption.
  • ARM® Cortex®-M3 Dual Core and original DSP clock max frequency:
    • 160 MHz @1.2 V
    • 100 MHz @1.0 V
 
  • High processing capability with higher clock frequency.
  • 32-bit fixed point, dual-MAC original DSP optimized for audio processing
   
  • Cortex®-M3 Single Core power consumption: 0.11 mW/MHz @1.0 V
   
Applications   End Products
  • Audio Processing for Potable Audio
  • Audio Processing for Wireless Audio
  • Audio Processing for High-Resolution Audio
 
  • IC Recorders
  • Wireless headsets
  • Other porable audio devices
  • High Resolution Audio players
  • Wireless speakers
Evaluation/Development Tool Information
Product Status Compliance Short Description Action
LC823450XGEVK Active
Pb-free
Low Power & High-Resolution Audio Processing System Evaluation Board Kit
FutureElectronics (2020-08-19) : 3
Availability & Samples
Specifications
Case Outlines
Application Diagram
Intaractive Block Diagram
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
LC823450RAH-2H Active
Pb-free
Halide free
LC823450 LFBGA240 11x11, 0.65P 566EY 3 260 Tray JEDEC 840 $10.5997
LC823450TA-2H Active
Pb-free
Halide free
LC823450 TQFP-128 / TQFP-128L 932BA 3 260 Tray JEDEC 450 $10.6664
LC823450XCTBG Active
Pb-free
Halide free
LC823450 WLCSP-154 567LD 1 260 Tape and Reel 1000 $11.1197
LC823450XDTBG Active
Pb-free
Halide free
LC823450 WLCSP-154 567LD 1 260 Tape and Reel 1000 $11.1197
Market Leadtime (weeks) : 8 to 12
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : 17 to 20
ON Semiconductor   (2020-09-02 00:00) : 100,847

Product
Description
Pricing ($/Unit)
Compliance
Status
DSP Core (bits)
Coprocessor Type
MIPS
Dynamic Range (dB)
RAM (kB)
Istandby Typ (µA)
Audio Inputs
Audio Outputs
Package Type
LC823450RAH-2H  
 $10.5997 
Pb
H
 Active   
32
-
160
-
1656
-
2
2
LFBGA240 11x11, 0.65P
LC823450TA-2H  
 $10.6664 
Pb
H
 Active   
32
-
160
-
1656
-
2
2
TQFP-128 / TQFP-128L
LC823450XCTBG  
 $11.1197 
Pb
H
 Active   
32
-
160
-
1656
-
2
2
WLCSP-154
LC823450XDTBG  
 $11.1197 
Pb
H
 Active   
32
-
160
-
1656
-
2
2
WLCSP-154
Case Outlines
932BA    566EY    567LD   
Packages
LC823450: Low Power & High-Resolution Audio Processing System-on-Chip (SoC)
LC823450: Low Power & High-Resolution Audio Processing System-on-Chip (SoC)
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