Datasheet > PT8921

PT8921

更新时间： 2024-09-15 06:05:43

品牌	Logo	应用领域
普诚科技 - PTC		控制器
页数	文件大小	规格书
4页	476K
描述
Smart Audio Combo-Station with USB Mini-Host & SD/MMC Host Interface Controller

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PT8921 数据手册

Preliminary

PT8921

Smart Audio Combo-Station with USB

Mini-Host & SD/MMC Host Interface Controller

DESCRIPTION

FEATURES

The PT8921 is a cost-efficient single chip for audio

mini-combo play-station application. The chip integrated

the USB2.0 FS host controller, SD/MMC host controller,

Sigma-Delta Audio-DAC and WAV/MP3/WMA/AAC

Audio-Decoder in one chip. Only few external components

needed in application circuits makes it suite for the audio

play-station system with USB2.0 FS host, SD/MMC host

and i-Pod audio control interfaces.

•

Built-in USB 2.0 FS Mini-Host interface.

Compliant with USB Mass-storage class specification.

Built-in SD/MMC Host interface.

Compliant with SD/SDIO Card specification Version 2.0.

Compliant with MMC Card specification Version 4.2.

Support FAT12, FAT16 and FAT32 file system.

Built-in 8051 base MCU with 8K ROM.

Support ISP (In-System-Programmable) Interface for

external program Flash-ROM.

The I/O interfaces are totally following the USB2.0 FS host

class interface specification and SD/MMC card

specification. The stand alone audio play-station and no

special driver software need to install on this system by

user in the recent market. The PT8921 is a truly plug and

play audio play-station controller with USB2.0 FS host and

SD/MMC host interfaces. There are some extended

functions for the different audio sources and applications.

The embedded 8 pins provide the player function key and

other adjustment feature. The 5 GPIO-pins support the

other control function for customer application.

•

Built-in WAV/MP3 WMA/AAC Format Audio-Decoder.

Support MPEG1/2/2.5 layer III audio decoding.

Built-In Flat/Pop/Jazz/Classic/Rock processing function.

Built-In Digital Volume control function

Built-in SNR=85dB (A-Weighted) Sigma-Delta DAC,

PWM Output.

Built-in IIC Master/Slave Control Interface.

Built-in UART Interface to communicate with i-Pod.

Built-in external IIS input for optional audio input

sources, and support one IIS output connecting an

external advanced audio controller or stand-alone

sigma-delta DAC controller.

•

APPLICATIONS

•

Packages: 100 Pins LQFP

•

Portable Audio Play-Station

Car Audio Combo-Station

Home Audio Play-Station

BLOCK DIAGRAM

I²S_INPUT

USB 2.0

FS-PHY

PWM_LP/LN

Delta

Host

SIE

Sigma

DAC

PWM_OUT

I²S_OUT

PWM_RP/RN

Data

FIFO

DMA

I²S Stream

PCM-Data (WAV)

I²C Master

& Slave

I²C

MCU

8051

Audio

Buffer

SFR

MP3/WMA/AAC PCM-Data

UART

Decoder

Power

RAM

ROM

Regulator

VCC

Reset

Parallel

Flash I/F

SD/MMC

Host I/F

Master Clks

System Clks

GPIO

POR

PLL

12 MHz

GPIO

External Program

Flash-Memory

SD/MMC

Card

Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan

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与PT8921相关器件

型号	品牌	获取价格	描述	数据表
PT8921_10	PTC	获取价格	Smart Audio Combo-Station with USB Mini-Host & SD/MMC Host Interface Controller
PT8921-LQ	PTC	获取价格	Smart Audio Combo-Station with USB Mini-Host & SD/MMC Host Interface Controller
PT8A201	PERICOM	获取价格	Consumer Circuit, PDSO14, SOIC-14
PT8A2511	ETC	获取价格	PT8A2511
PT8A2511P	DIODES	获取价格	Micro Peripheral IC,
PT8A2511PE	DIODES	获取价格	Analog Circuit, 1 Func, CMOS, PDIP8, LEAD FREE, MS-001DBA, DIP-8
PT8A2511PE	PERICOM	获取价格	Analog Circuit, 1 Func, CMOS, PDIP8, LEAD FREE, MS-001DBA, DIP-8
PT8A2511WEX	DIODES	获取价格	Analog Circuit, 1 Func, CMOS, PDSO8, GREEN, MS-012EAA, SOIC-8
PT8A2514A	DIODES	获取价格	Toaster Controller
PT8A2514APE	DIODES	获取价格	Analog Circuit, 1 Func, CMOS, PDIP8, DIP-8

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