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ADAV803 Datasheet

  • ADAV803

  • Audio Codec for Recordable DVD

  • 2837.41KB

  • 57頁

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Audio Codec for Recordable DVD
ADAV803
FEATURES
Stereo analog-to-digital converter (ADC)
Supports 48/96 kHz sample rates
102 dB dynamic range
Single-ended input
Automatic level control
Stereo digital-to-analog converter (DAC)
Supports 32/44.1/48/96/192 kHz sample rates
101 dB dynamic range
Single-ended output
Asynchronous operation of ADC and DAC
Stereo sample rate converter (SRC)
Input/output range: 8 kHz to 192 kHz
140 dB dynamic range
Digital interfaces
Record
Playback
Auxiliary record
Auxiliary playback
S/PDIF (IEC60958) input and output
Digital interface receiver (DIR)
Digital interface transmitter (DIT)
PLL-based audio MCLK generators
Generates required DVDR system MCLKs
Device control via I
2
C廬-compatible serial port
64-lead LQFP package
XOUT
XIN
FUNCTIONAL BLOCK DIAGRAM
SYSCLK1
SYSCLK2
SYSCLK3
MCLKO
MCLKI
SDA
SCL
AD0
AD1
PLL
CONTROL
REGISTERS
RECORD
DATA
OUTPUT
OLRCLK
OBCLK
OSDATA
OAUXLRCLK
OAUXBCLK
OAUXSDATA
DIT
DITOUT
VINL
VINR
VREF
ANALOG-TO-DIGITAL
CONVERTER
REFERENCE
SRC
DIGITAL
INPUT/OUTPUT
SWITCHING MATRIX
(DATA PATH)
AUX DATA
OUTPUT
VOUTL
VOUTR
DIGITAL-TO-ANALOG
CONVERTER
FILTD
PLAYBACK
DATA INPUT
AUX DATA
INPUT
ZEROL/INT
DIR
ZEROR
ADAV803
ISDATA
IAUXSDATA
ILRCLK
IBCLK
IAUXLRCLK
IAUXBCLK
DIRIN
Figure 1.
APPLICATIONS
DVD-recordable
All formats
CD-R/W
PRODUCT OVERVIEW
The ADAV803 is a stereo audio codec intended for applications
such as DVD or CD recorders that require high performance
and flexible, cost-effective playback and record functionality.
The ADAV803 features Analog Devices鈥?proprietary, high
performance converter cores to provide record (ADC), playback
(DAC), and format conversion (SRC) on a single chip. The
ADAV803 record channel features variable input gain to allow
for adjustment of recorded input levels and automatic level
control, followed by a high performance stereo ADC whose
digital output is sent to the record interface. The record channel
also features level detectors that can be used in feedback loops
to adjust input levels for optimum recording. The playback
channel features a high performance stereo DAC with
independent digital volume control.
The sample rate converter (SRC) provides high performance
sample rate conversion to allow inputs and outputs that require
different sample rates to be matched. The SRC input can be
selected from playback, auxiliary, DIR, or ADC (record). The
SRC output can be applied to the playback DAC, both main and
auxiliary record channels, and a DIT. Operation of the
ADAV803 is controlled via an I
2
C-compatible serial interface,
which allows the programming of individual control register
settings. The ADAV803 operates from a single analog 3.3 V
power supply and a digital power supply of 3.3 V with optional
digital interface range of 3.0 V to 3.6 V.
The part is housed in a 64-lead LQFP package and is character-
ized for operation over the commercial temperature range of
鈭?0擄C to +85擄C.
Rev. 0
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.326.8703
漏 2004 Analog Devices, Inc. All rights reserved.
04756-0-001

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