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LC823430TA Datasheet

Audio Processing System LSI

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Ordering number : ENA2171A
LC823430TA
CMOS LSI
Audio Processing System LSI
for MP3 Record and Playback Devices
http://onsemi.com
Overview
LC823430TA is an audio processing system for MP3 record and playback devices.
It integrates DSP for digital signal processing and analog blocks such as audio ADC, audio DAC, and speaker and
headphone amplifier in addition to LCD segment driver.
Features
32bit LPDSP32
- SRAM (246KB)
PM 75KB (40KB + 35KB : ISOLATED)
DMA 170KB (16KB + 154KB : ISOLATED)
DMB 1KB (ISOLATED)
ISOLATED area : Power ON/OFF control is available by register.
- ROM (264.5KB)
PM 227.5KB (ISOLATED)
DMA 34KB (ISOLATED)
DMB 3KB (ISOLATED)
TQFP128L(14X14)
ISOLATED area : Power ON/OFF control is available by the register.
- SIO (Clock Serial IO 2ch)
SIO0 : Ch0 eSIO (Clock speed = Sysclk/1 (max))
program load and execute is possible using Serial Flash (after internal ROM Boot)
SIO1 : Ch1 SIO (Clock speed = Sysclk/8 (max))
- UART (1ch)
- I2C (1ch Single Master, Full/Standard)
- Plain Timer (2ch)
Timer0 : w/ Watch Dog Timer
Timer1 : w/o Watch Dog Timer and XT1 operation
- Multiple Timer (2ch)
PWM output (1ch)
- RTC (Real Time Clock)
Operating voltage is independent of internal core operating voltage.
Only RTC power supply can be active during all others inactive (ISOLATED).
- SD card IF (2ch) (w/o CPRM)
eSD/eMMC can be connected.
SD ch0 : program load and execute using eSD/eMMC (after internal ROM Boot) is possible.
SD ch1 : SD card
- USB2.0 (480Mbps/12Mbps) Device IF. built-in PHY
- 10bit A/D converter (3ch)
- GPIO (31ch)
(GPIOs share the terminals with other functions. Refer to the terminal list in detail).
LCD controller, LCD Driver. 18SEG * 8COM, 1/8Duty, 1/4Bias
- Internal ROM Boot is possible.
* I2C Bus is a trademark of Philips Corporation.
ORDERING INFORMATION
See detailed ordering and shipping information on page 20 of this data sheet.
Continued on next page.
Semiconductor Components Industries, LLC, 2014
January, 2014
12914HK/30613HKPC 20130129-S00003 No.A2171-1/20


  ON Semiconductor Electronic Components Datasheet  

LC823430TA Datasheet

Audio Processing System LSI

No Preview Available !

LC823430TA
Continued from preceding page.
- Firmware writing function.
The firmware reading from SD ch1 and writing to the following devices:
Serial Flash connected SIO0.
eMMC/eSD connected SD ch0.
- JTAG (for debugger)
Audio Functions
- Record and Playback
Compression method : MP31 (MPEG1/2/2.5 Layer3). Stereo/Mono compatible.
Sampling frequences : 8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz, and 48kHz
Bitrate : 8kbps (*1) to 320kbps (for Decoder-VBR)
(*1) Encoder supports only Mono (one channel) for 8Kbps.
- Adjusting the playback speed
Fast playback : 1.0 times to 2.0 times 10 steps.
Slow playback : 0.5 times to 1.0 times 10 steps.
- Multipurpose filter
- Audio data automatic transfer function
The audio buffer executes the data transfer between internal SRAM (DMA) and the audio block.
Wait cycle(s) is inserted to the LPDSP32 access to the SRAM while the audio buffer accesses to internal
SRAM(DMA).
- Digital volume, digital mute, BEEP, and level meter
The interrupt generation function at the operation completion
(e.g. interrupt at mute completion).
- Audio timer
LR clock count and the interrupt generation function.
- Flexible PCM audio interface (two interfaces)
Master/Slave Mode Selectable
Data Formats : I2S mode etc.
- Sample Rate Converters
0.5times to 64 times conversion range.
- Digital microphone IF (2ch)
Analog function
- Microphone amplifier 0/18/24/30dB (2ch)
- PGA with ALC -12dB to 35.25dB in 0.75dB steps (2ch)
- 16 bit ΔΣADC (2ch)
- Digital filter for 16 bits ΔΣDAC (2ch)
- AB class amplifier
The power supply only to AB class amplifier is possible (ISOLATED).
Thermal shutdown circuit built-in
Speaker amplifier (1ch BTL) 1dB to 4.5dB in 0.5dB steps
Maximum output 300mW @3.0V, Speaker = 8[], 1dB
Headphone amplifier (2ch) 0dB to 3dB in 1dB steps (Only same gain setting to 2ch is possible)
Maximum output 5mW @3.0V, HeadPhone = 16[], Rd (Series) = 33[], 1dB
Continued on next page.
1 MPEG Layer-3 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
revenue-generating broadcast systems (terrestrial, satellite, cable and/or other distribution channels), streaming
applications (via Internet, intranets and/or networks), other content distribution systems (pay-audio or audio-on-demand
applications and the like) or on physical media (compact discs, digital versatile discs, semiconductor chips, hard drives,
memory cards and the like).
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 ready-to-use final product. An
independent license for such use is required. For details, please visit http://mp3licensing.com/.
No.A2171-2/20


Part Number LC823430TA
Description Audio Processing System LSI
Maker ON Semiconductor
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