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A3525BC22O20R PDF预览

A3525BC22O20R

更新时间: 2022-12-14 18:55:13
品牌 Logo 应用领域
艾迈斯 - AMSCO /
页数 文件大小 规格书
194页 3286K
描述
Advanced Audio Processor System

A3525BC22O20R 数据手册

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Datasheet, Confidential  
AS3525  
Advanced Audio Processor System  
1
Description  
2
Key Features  
This highly flexible and fully integrated audio processor system  
(AS3525) combines strong calculating power, high performance  
audio features with system power management options for battery  
powered devices.  
2.1 Digital Core  
Embedded 32-Bit RISC Controller  
Using advanced 0.13µm process technology and large on chip  
RAM leads to outstanding low power consumption of as low as  
58mW for a complete flash-player during MP3 playback.  
Based on a powerful ARM9TDMI capable of performing up to  
200MIPS it is suited to run MP3, AAC, WMA, OGG… decoders and  
encoders and, in addition, it can perform extensive user interfaces,  
motion graphics support, video playback and much more.  
ARM922TDMI RISC CPU  
2.5Mbit on-chip RAM  
1Mbit on chip ROM  
Clock speed max. 250MHz (200MIPS)  
Standard JTAG interface  
The AS3525 SOC (system-on-a-Chip) features dedicated high  
speed interfaces for ATA IDE, USB2.0 HS-OTG and SDRAM  
ensuring maximum performance for download, upload, and  
playback.  
USB 2.0 HS & OTG Interface  
Furthermore interfaces for NAND flashes, MMC/SD cards and  
Memory Stick ensure most flexible system design possibilities.  
Hardware support for parallel interfaces lower the CPU load serving  
complex and/or colour user interfaces.  
Up to 480Mbit/s transfer speed  
USB 2.0 HS/FS physical inlcuding OTG support  
USB 2.0 HS/FS digital core including OTG host  
Dedicated dual port buffer RAM  
DMA bus master functionality  
Additional serial high-speed data and control interfaces guarantee  
the connection to other peripherals and or processors in the system.  
IDE Host Controller  
Supporting Ultra ATA 33/66/100/133 modes  
Programmable IO and Multi-word DMA capability  
Dedicated dual port buffer RAM  
Two independently programmable PLLs generate the required  
frequencies for audio playback/recording, for the processor core  
and for the USB interface at the same time. An additional external  
clock input eliminates the use of external crystals when used in  
multi-processor systems like mobile phones.  
DMA bus master functionality  
External Memory Controller  
It has a variety of audio inputs and outputs to directly connect  
electret microphones, and auxiliary signal sources via a 10-channel  
mixer to a 16Ω/32Ω headset , 4Ω speaker or auxiliary audio  
peripherals.  
Dynamic memory interface  
Asynchronous static memory  
DMA bus master functionality  
DMA Controller  
Further the device offers advanced power management functions.  
All necessary ICs and peripherals in a Digital Audio Player with  
flash or hard-disk memory are supplied by the AS3525. The  
different regulated supply voltages are fully programmable. The  
power management block generates 10 different supply voltages  
out of a single battery supply. CPU, NAND flash, SRAM, memory  
cards, LCD, LCD backlight and USB-OTG can be powered. When  
operating from a single cell (AA or AAA) battery the AS3525 can  
use a DCDC booster to generate the needed system supply.  
Single Master DMA controller  
2 DMA channels possible at the same time  
16 DMA requests supported  
Interrupt Controller  
Support for 32 standard interrupts  
Support for 16 vectored IRQ interrupts  
Audio Subsystem Interface  
Dedicated 2 wire serial control master  
I2S input and output with dual port buffer RAM  
The AS3525 has an independent 32kHz real time clock (RTC) on  
chip, which allows a complete power down of the system CPU and  
peripherals.  
Nand Flash Interface  
8 and 16bit flash support  
3, 4 & 5 byte address support  
hardware ECC  
AS3525 also contains a charger for Li-Io battery supply  
The single supply voltage may vary from 1.0V to 5.5V.  
MMC/SD Interface  
MMC/SD Card host for multiple card support  
4 data line support for SD cards  
© 2005-2009, austriamicrosystems AG, 8141 Unterpremstaetten, Austria-Europe. All Rights Reserved.  
www.austriamicrosystems.com Revision 1.13  
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