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ADAU1701 Datasheet

  • ADAU1701

  • SigmaDSP? 28/56-Bit Audio Processor with 2ADC/4DAC

  • 1329.98KB

  • 40頁

  • AD

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ADAU1701
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Specifications..................................................................................... 4
Analog Performance .................................................................... 4
Digital I/O ..................................................................................... 5
Power.............................................................................................. 5
Temperature Range ...................................................................... 5
Digital Timing............................................................................... 5
PLL ................................................................................................. 6
Regulator........................................................................................ 6
Absolute Maximum Ratings............................................................ 7
ESD Caution.................................................................................. 7
Typical Performance Characteristics ............................................. 8
Pin Configuration and Functions................................................. 10
Overview.......................................................................................... 13
Initialization .................................................................................... 14
Power-Up Sequence ................................................................... 14
Recommended Program/Parameter Loading Procedure ..... 14
Power Reduction Modes............................................................ 14
Using the Oscillator.................................................................... 14
Setting Master Clock/PLL Mode .............................................. 15
Voltage Regulator ....................................................................... 15
Two-Channel Audio ADC............................................................. 17
Four-Channel Audio DAC ............................................................ 18
Control Port..................................................................................... 19
Overview...................................................................................... 19
I
2
C Port ........................................................................................ 19
SPI Port ........................................................................................ 20
Self boot ....................................................................................... 23
Preliminary Technical Data
Signal Processing ............................................................................ 25
Overview ..................................................................................... 25
Numeric Formats ....................................................................... 25
Programming.............................................................................. 25
RAMs and Registers....................................................................... 26
Control Port Addressing ........................................................... 26
Parameter RAM.......................................................................... 26
Safeload Registers ....................................................................... 27
Data Capture Registers .............................................................. 27
DSP Core Control Register ....................................................... 28
Interface Registers ...................................................................... 28
Control Port Read/Write Data Formats .................................. 28
Data RAM ................................................................................... 30
Multipurpose Pins .......................................................................... 31
MultiPurpose pin Configuration Registers ............................ 31
GPIO pin Setting Register......................................................... 31
Auxiliary ADC............................................................................ 31
General Purpose Input/Outputs .............................................. 32
Serial Data Input/Output Ports ................................................ 32
Serial Output Control Registers ............................................... 34
Serial Input Control Register .................................................... 35
Layout Recommendations............................................................. 37
Parts Placement .......................................................................... 37
Grounding ................................................................................... 37
Typical Application Schematic 鈥?Self Boot Mode...................... 38
Typical Application Schematic 鈥?I
2
C Control............................. 39
Typical Application Schematic 鈥?SPI Control ............................ 40
Digital Timing Diagrams............................................................... 41
Outline Dimensions ....................................................................... 43
Ordering Guide .......................................................................... 43
REVISION HISTORY
Rev. PrF | Page 2 of 43

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