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WM8802 PDF预览

WM8802

更新时间: 2024-11-08 21:54:31
品牌 Logo 应用领域
欧胜 - WOLFSON /
页数 文件大小 规格书
65页 516K
描述
Digital Audio Interface Transceiver

WM8802 数据手册

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WM8802  
w
Digital Audio Interface Transceiver  
DESCRIPTION  
FEATURES  
PLL circuit for synchronization with transferred input bi-  
phase mark signal.  
The WM8802 is  
a digital audio interface transceiver  
conforming to IEC 60958/61937 and EIAJ CP-1201. The  
device supports data sampling input rates of up to 192 kHz.  
Data input to the serial digital audio data input pin can also  
be modulated. The WM8802 features up to 6 data inputs  
and 1 data output.  
Input sampling frequency: 32kHz to 192kHz  
Outputs clocks: fs, fs/2, 2fs, 32fs, 64fs, 128fs, 256fs,  
384fs, and 512fs.  
4-Wire CCB MPU Serial Control or Hardware Default  
Interface  
Data can be demodulated using the on-board PLL or with  
the use of an external clock source.  
Master or Slave Clocking Mode  
Programmable Audio Data Interface Modes  
The WM8802 is controlled via a 4-wire CCB compatible  
control interface. This interface provides access to the  
channel status bits. The WM8802 also provides a number  
of flag outputs including PCM data valid, de-emphasis, lock  
and IEC 61937, DTS-CD/LD detection.  
I2S, Left, Right Justified  
16/20/24/32 bit Word Lengths  
3.3V Digital supply Operation  
5V tolerant digital input ports  
The device is available in a small 48-pin SQFP package.  
APPLICATIONS  
DVD Receivers  
AV Amplifiers  
DVD Recorders  
BLOCK DIAGRAM  
AUDIO/VO  
CE  
XMODE  
INT CL  
EMPH/UO  
DI  
W
WM8802  
MICROCONTROLLER  
I/F  
CBIT, UBIT  
RXOUT  
RX0  
DO  
RERR  
RDATA  
RX1  
RX2  
RX3  
RX4  
DEMODULATION  
AND  
LOCK DETECT  
DATA  
SELECTOR  
INPUT  
SELECTOR  
RX5/VI  
RX6/UI  
SDIN  
PLL  
RMCK  
LPF  
RBCK  
CLOCK  
SELECTOR  
RLRCK  
TMCLK/GPIO0  
TBCLK/GPIO1  
TLRCLK/GPIO2  
TDATA/GPIO3  
MODULATION  
AND  
PARALLEL PORT  
SBCK  
1/N  
SLRCK  
TXO/GPIOEN  
CKST  
XMCLK  
XOUT  
XIN  
WOLFSON MICROELECTRONICS plc  
Product Preview, April 2004, Rev 1.1  
Copyright 2004 Wolfson Microelectronics plc  
w :: www.wolfsonmicro.com  

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