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AD1953 датащи(PDF) 2 Page - Analog Devices

номер детали AD1953
подробное описание детали  SigmaDSP??3-Channel, 26-Bit Signal Processing DAC
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
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AD1953 датащи(HTML) 2 Page - Analog Devices

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AD1953
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TABLE OF CONTENTS
FEATURES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
APPLICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
FUNCTIONAL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . 1
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
ABSOLUTE MAXIMUM RATINGS . . . . . . . . . . . . . . . . . 6
ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Package Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PIN CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . . . . . 7
TYPICAL PERFORMANCE CHARACTERISTICS . . . . . 8
PERFORMANCE PLOTS . . . . . . . . . . . . . . . . . . . . . . . . . . 8
PRODUCT OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Pin Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SIGNAL PROCESSING . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Signal Processing Overview . . . . . . . . . . . . . . . . . . . . . . . 12
Numeric Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Coefficient Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Internal DSP Signal Data Format . . . . . . . . . . . . . . . . . . 13
High-Pass Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Biquad Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Stereo Image Expander . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Main Compressor/Limiter . . . . . . . . . . . . . . . . . . . . . . . . 15
RMS Time Constant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
RMS Hold Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
RMS Release Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Look-Ahead Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Post-Compression Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Subwoofer Compressor/Limiter . . . . . . . . . . . . . . . . . . . . 17
De-Emphasis Filtering . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Using the Sub Reinjection Paths for Systems with No
Subwoofer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Interpolation Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SPI PORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SPI Address Decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Control Register 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Control Register 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Volume Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Parameter RAM Contents . . . . . . . . . . . . . . . . . . . . . . . . 23
Options for Parameter Updates . . . . . . . . . . . . . . . . . . . . 24
Soft Shutdown Mechanism . . . . . . . . . . . . . . . . . . . . . . . 25
Safeload Mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Summary of RAM Modes . . . . . . . . . . . . . . . . . . . . . . . . 25
SPI READ/WRITE DATA FORMATS . . . . . . . . . . . . . . . 26
INITIALIZATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Power-Up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Setting the Clock Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Setting the Data and MCLK Input Selectors . . . . . . . . . . 28
DATA CAPTURE REGISTERS AND OUTPUTS . . . . . . 28
SERIAL DATA INPUT/OUTPUT PORTS . . . . . . . . . . . . 30
Serial Data Input/Output Modes . . . . . . . . . . . . . . . . . . . 30
DIGITAL CONTROL PIN . . . . . . . . . . . . . . . . . . . . . . . . 31
Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
ANALOG OUTPUT SECTION . . . . . . . . . . . . . . . . . . . . 31
GRAPHICAL CUSTOM PROGRAMMING TOOLS . . . . 32
APPENDIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
OUTLINE DIMENSIONS . . . . . . . . . . . . . . . . . . . . . . . . . 34


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