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DA7212 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Ultra-low power stereo codec - Dialog Semiconductor

भाग संख्या DA7212
समारोह Ultra-low power stereo codec
मैन्युफैक्चरर्स Dialog Semiconductor 
लोगो Dialog Semiconductor लोगो 
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DA7212 pdf
DA7212
Ultra-Low Power Stereo Codec
Contents
General Description ............................................................................................................................ 1
Key Features ........................................................................................................................................ 1
Applications ......................................................................................................................................... 1
Contents ............................................................................................................................................... 2
Figures.................................................................................................................................................. 4
Tables ................................................................................................................................................... 5
1 Terms and Definitions................................................................................................................... 7
2 Block Diagram ............................................................................................................................... 8
3 Pinout ............................................................................................................................................. 9
4 Absolute Maximum Ratings ....................................................................................................... 11
5 Recommended Operating Conditions....................................................................................... 11
6 Electrical Characteristics ........................................................................................................... 12
7 Parametric Specifications .......................................................................................................... 13
8 Digital Signal Processing ........................................................................................................... 16
9 Audio Outputs ............................................................................................................................. 18
10 Clock Generation......................................................................................................................... 22
11 Phase Locked Loop .................................................................................................................... 22
12 Digital Interfaces ......................................................................................................................... 23
12.1 Codec Start-Up Time .......................................................................................................... 26
13 Functional Description ............................................................................................................... 27
13.1 General Description ............................................................................................................ 27
13.2 Input Signal Chain............................................................................................................... 28
13.3 Microphone Inputs............................................................................................................... 29
13.4 Digital Microphones............................................................................................................. 29
13.5 Auxiliary Inputs .................................................................................................................... 30
13.6 Input Mixers......................................................................................................................... 31
13.7 Stereo Audio ADC............................................................................................................... 31
13.8 Automatic Level Control ...................................................................................................... 32
13.9 Beep Generator and Controller ........................................................................................... 34
13.10 Output Signal Chain ............................................................................................................ 35
13.11 Stereo Audio DAC............................................................................................................... 35
13.12 Output Mixer........................................................................................................................ 36
13.13 Headphone Amplifier........................................................................................................... 36
13.14 Speaker Amplifier................................................................................................................ 37
13.15 Charge Pump Control ......................................................................................................... 37
13.16 Charge Pump Clock Control ............................................................................................... 39
13.17 Boosting The Charge Pump Using Demand Feedback Control ......................................... 39
13.17.1 Tracking The Demands On The Charge Pump Output ....................................... 39
13.17.1.1 CP_MCHANGE = 00 (Manual Mode) .............................................. 39
13.17.1.2 CP_MCHANGE = 01 (Tracking the PGA Gain Setting) .................. 39
13.17.1.3 CP_MCHANGE = 10 (Tracking the DAC Signal Setting) ................ 39
13.17.1.4 CP_MCHANGE = 11 (Tracking the Output Signal Magnitude) ....... 39
Datasheet
Revision 3.4
2 of 130
31-Aug-2017
© 2017 Dialog Semiconductor

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डाउनलोड[ DA7212 Datasheet.PDF ]


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