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PDF PT8921 Data sheet ( Hoja de datos )
| Número de pieza | PT8921 | |
| Descripción | Smart Audio Combo-Station with USB Mini-Host & SD/MMC Host Interface Controller | |
| Fabricantes | Princeton Technology | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PT8921 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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Preliminary PT8921
Smart Audio Combo-Station with USB
Mini-Host & SD/MMC Host Intewrwfwa.cDaetaCSheoent4tUr.coomller
DESCRIPTION
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.
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-GPIO pins provide the
player function key and other adjustment feature.
APPLICATIONS
• Portable Audio Play-Station
• Car Audio Combo-Station
• Home Audio Play-Station
FEATURES
• 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.
• 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 I2C Master/Slave Control Interface.
• Built-in UART Interface to communicate with i-Pod.
• Built-in external I2S input for optional audio input
sources, and support one I2S output connecting an
external advanced audio controller or stand-alone
sigma-delta DAC controller.
• Packages: 100 Pins LQFP
BLOCK DIAGRAM
DP
DM
I2C
UART
VCC
USB 2.0
FS-PHY
I2C Master
& Slave
Host
SIE
DMA
MCU
8051
Data
FIFO
SFR
Power
Regulator
RAM ROM
System Clks
PLL
Master Clks
PLL
GPIO
Parallel
Flash I/F
I2S_INPUT
I2S_INPUT
Delta
Sigma
DAC
PWM_LP/LN
PWM_RP/RN
I2S Stream
PCM-Data (WAV)
MP3/WMA/AAC PCM-Data
Decoder
Audio
Buffer
Reset
SD/MMC
Host I/F POR
PWM_OUT
I2S_OUT
Reset
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
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet PT8921.PDF ] | |
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