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ADAU1702 Datasheet

  • ADAU1702

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

  • 694.40KB

  • 38頁

  • AD

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ADAU1702
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Analog Performance .................................................................... 3
Digital Input/Output.................................................................... 4
Power.............................................................................................. 4
Temperature Range ...................................................................... 4
PLL and Oscillator........................................................................ 4
Regulator........................................................................................ 5
Digital Timing Specifications ..................................................... 5
Digital Timing Diagrams................................................................. 7
Absolute Maximum Ratings............................................................ 9
Thermal Resistance ...................................................................... 9
ESD Caution.................................................................................. 9
Pin Configuration and Function Descriptions........................... 10
Typical Performance Characteristics ........................................... 13
System Block Diagram ................................................................... 14
Overview.......................................................................................... 15
Initialization .................................................................................... 16
Power-Up Sequence ................................................................... 16
Control Registers Setup ............................................................. 16
Recommended Program/Parameter Loading Procedure ..... 16
Power-Reduction Modes ........................................................... 16
Using the Oscillator.................................................................... 17
Setting Master Clock/PLL Mode .............................................. 17
Voltage Regulator ....................................................................... 18
Audio ADCs .................................................................................... 19
Audio DACs .................................................................................... 20
Control Ports................................................................................... 21
I C Port ........................................................................................ 22
SPI Port ........................................................................................ 25
Self-Boot ...................................................................................... 26
Signal Processing ............................................................................ 28
Numeric Formats........................................................................ 28
Programming .............................................................................. 28
2
RAMs and Registers....................................................................... 29
Address Maps.............................................................................. 29
Parameter RAM.......................................................................... 29
Data RAM ................................................................................... 29
Read/Write Data Formats ......................................................... 29
Control Register Map..................................................................... 31
Control Register Details ................................................................ 33
2048 to 2055 (0x0800 to 0x0807)鈥擨nterface Registers......... 33
2056 (0x808)鈥擥PIO Pin Setting Register.............................. 34
2057 to 2060 (0x809 to 0x80C)鈥?/div>
Auxiliary ADC Data Registers.................................................. 35
2064 to 2068 (0x0810 to 0x814)鈥擲afeload Data Registers.........36
2069 to 2073 (0x0815 to 0x819) Safeload Address Registers ......36
2074 to 2075 (0x081A to 0x081B)鈥擠ata Capture Registers......37
2076 (0x081C)鈥擠SP Core Control Register ......................... 38
2078 (0x081E)鈥擲erial Output Control Register ................... 39
2079 (0x081F)鈥擲erial Input Control Register....................... 40
2080 to 2081 (0x0820 to 0x0821)鈥?/div>
Multipurpose Pin Configuration Registers............................. 41
2082 (0x0822)鈥擜uxiliary ADC and Power Control ............ 42
2084 (0x0824)鈥擜uxiliary ADC Enable.................................. 42
2086 (0x0826)鈥擮scillator Power-Down................................ 42
2087 (0x0827)鈥擠AC Setup...................................................... 43
Multipurpose Pins .......................................................................... 44
Auxiliary ADC............................................................................ 44
General-Purpose Input/Output Pins....................................... 44
Serial Data Input/Output Ports ................................................ 44
Layout Recommendations............................................................. 47
Parts Placement .......................................................................... 47
Grounding ................................................................................... 47
Typical Application Schematics.................................................... 48
Self-Boot Mode........................................................................... 48
I
2
C Control .................................................................................. 49
SPI Control.................................................................................. 50
Outline Dimensions ....................................................................... 51
Ordering Guide .......................................................................... 51
REVISION HISTORY
10/06鈥擱evision 0: Initial Version
Rev. 0 | Page 2 of 52

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