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WM8803 Datasheet Preview

WM8803 Datasheet

DIGITAL AUDIO INTERFACE RECEIVER

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WM8803
Digital Audio Interface Receiver
DESCRIPTION
The WM8803 is a digital audio interface receiver conforming
to IEC 60958/61937 and EIAJ CP-1201. It supports input
audio data rates up to 192kHz and a maximum output data
length of 24 bits.
The WM8803 has a flexible digital output port that allows the
user access to channel status pre-emphasis information, input
signal sampling frequency, sub-code Q data with the
associated CRC flags and other status data.
The WM8803 can output an externally input clock signal that
can be used as an ADC converter clock when the PLL is
unlocked. It also maintains the continuity of the output clock
when the clock is switched.
The WM8803 includes a built-in oscillator and serial data
input circuits and allows the system micro-controller to read
the sub-code Q data and the channel status. It provides
several low-power modes, thus supporting applications that
require long battery life, such as portable audio devices and
PDAs.
The device is available in a 24-pin TSSOP package.
FEATURES
PLL circuit for synchronization with transferred input bi-
phase mark signal.
Input sampling frequency: 32kHz to 192kHz
Outputs clocks: fs, 64fs, and one of 128fs, 256fs, 384fs,
and 512fs.
4-Wire CCB MPU Serial Control or Hardware Default
Interface
Master Clocking Mode
Programmable Audio Data Interface Modes
I2S, Left, Right Justified
16/20/24/32 bit Word Lengths
3.3V Digital supply Operation
5V tolerant digital input ports
APPLICATIONS
DVD Receivers
DVD-R/W Players
Audio Video Receivers
Portable Music Players
BLOCK DIAGRAM
DI CL CE
AUDIO PD
DO
E/INT
MICROCONTROLLER INTERFACE
W
WM8803
DVDD
DGND
UGPI
RXIN
DEMODULATION
AND LOCK
DETECTION
FS
CALCULATOR
DATA
BUFFER
C&U
ERROR
LPF
XIN
XOUT
PLL
AMP
CLOCK
SELECTOR
AVDD AGND
WOLFSON MICROELECTRONICS plc
w :: www.wolfsonmicro.com
AUDIO
INTERFACE
SDIN
CLKOUT
BCLK
LRCLK
SDATO
Product Preview, September 2003, Rev 1.1
Copyright 2003 Wolfson Microelectronics plc




Wolfson Microelectronics plc

WM8803 Datasheet Preview

WM8803 Datasheet

DIGITAL AUDIO INTERFACE RECEIVER

No Preview Available !

WM8803
TABLE OF CONTENTS
Product Preview
DESCRIPTION .......................................................................................................1
FEATURES.............................................................................................................1
APPLICATIONS .....................................................................................................1
BLOCK DIAGRAM .................................................................................................1
TABLE OF CONTENTS .........................................................................................2
PIN CONFIGURATION...........................................................................................3
ORDERING INFORMATION ..................................................................................3
PIN DESCRIPTION ................................................................................................4
ABSOLUTE MAXIMUM RATINGS.........................................................................5
RECOMMENDED OPERATING CONDITIONS .....................................................5
ELECTRICAL CHARACTERISTICS ......................................................................6
INPUT AND OUTPUT PIN CAPACITANCE................................................................... 6
DC CHARACTERISTICS............................................................................................... 6
SYSTEM TIMING REQUIREMENTS ............................................................................. 7
SERIAL INTERFACE TIMING REQUIREMENTS.......................................................... 7
MICRO-CONTROLLER INTERFACE TIMING REQUIREMENTS ................................. 8
DEVICE DESCRIPTION.........................................................................................9
_____
SYSTEM RESET (PD)................................................................................................... 9
LOW POWER MODES ................................................................................................. 9
CLOCKS...................................................................................................................... 11
DATA INPUT AND OUTPUT ....................................................................................... 17
ERROR OUTPUT AND PROCESSING (ERROR)....................................................... 22
CHANNEL STATUS DATA .......................................................................................... 24
__________
USER GENERAL PURPOSE INTERFACE OUTPUT PORT (UGPI)........................... 24
MICRO-CONTROLLER INTERFACE (E/INT, CE, CL, DI, DO) ...........................28
INTERRUPT OUTPUT (E/INT).................................................................................... 28
CCB ADDRESSES ...................................................................................................... 29
DATA WRITE PROCEDURE....................................................................................... 29
DATA READ PROCEDURE ........................................................................................ 29
I/O TIMING .................................................................................................................. 30
WRITE REGISTER TABLE ......................................................................................... 31
WRITE DATA DETAILED DOCUMENTATION............................................................ 32
READ REGISTER TABLE ........................................................................................... 37
READ DATA DETAILED DOCUMENTATION ............................................................. 38
SAMPLE APPLICATION......................................................................................41
RECOMMENDED EXTERNAL COMPONENTS ..................................................42
RECOMMENDED EXTERNAL COMPONENTS VALUES ........................................... 43
PACKAGE DIMENSIONS ....................................................................................44
IMPORTANT NOTICE ..........................................................................................45
ADDRESS: .................................................................................................................. 45
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PP Rev 1.1 September 2003
2


Part Number WM8803
Description DIGITAL AUDIO INTERFACE RECEIVER
Maker Wolfson Microelectronics plc
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WM8803 Datasheet PDF






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