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WM8802SCFV Datasheet

  • WM8802SCFV

  • Digital Audio Interface Transceiver

  • 65頁(yè)

  • WOLFSON

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Digital Audio Interface Transceiver
DESCRIPTION
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.
Data can be demodulated using the on-board PLL or with
the use of an external clock source.
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.
The device is available in a small 48-pin SQFP package.
WM8802
FEATURES
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PLL circuit for synchronization with transferred input bi-
phase mark signal.
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
Master or Slave Clocking Mode
Programmable Audio Data Interface Modes
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I
2
S, Left, Right Justified
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16/20/24/32 bit Word Lengths
3.3V Digital supply Operation
5V tolerant digital input ports
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APPLICATIONS
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DVD Receivers
AV Amplifiers
DVD Recorders
BLOCK DIAGRAM
EMPH/UO
AUDIO/VO
INT CL CE DI
XMODE
W
WM8802
RXOUT
RX0
RX1
RX2
RX3
RX4
RX5/VI
RX6/UI
LPF
TMCLK/GPIO0
TBCLK/GPIO1
TLRCLK/GPIO2
TDATA/GPIO3
TXO/GPIOEN
XMCLK
CKST
Product Preview, April 2004, Rev 1.1
Copyright
餂?004
Wolfson Microelectronics plc
CBIT, UBIT
MICROCONTROLLER
I/F
DO
RERR
INPUT
SELECTOR
DEMODULATION
AND
LOCK DETECT
DATA
SELECTOR
RDATA
SDIN
PLL
CLOCK
SELECTOR
1/N
RMCK
RBCK
RLRCK
SBCK
SLRCK
MODULATION
AND
PARALLEL PORT
XIN
WOLFSON MICROELECTRONICS plc
w :: www.wolfsonmicro.com
XOUT

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