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DA7211 डेटा पत्रक PDF( Datasheet डाउनलोड )


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

भाग संख्या DA7211
समारोह Ultra-low power stereo codec
मैन्युफैक्चरर्स Dialog Semiconductor 
लोगो Dialog Semiconductor लोगो 
पूर्व दर्शन
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DA7211 pdf
DA7211
Ultra-low power stereo codec
Company confidential
Contents
General description............................................................................................................................. 1
Key features ......................................................................................................................................... 1
Applications ......................................................................................................................................... 1
Contents ............................................................................................................................................... 2
Figures.................................................................................................................................................. 3
Tables ................................................................................................................................................... 4
1 Terms and definitions ................................................................................................................... 8
2 Block diagram................................................................................................................................ 9
3 Pinout ........................................................................................................................................... 10
3.1 The 36-ball DA7211 device................................................................................................. 12
4 Absolute maximum ratings ........................................................................................................ 13
5 Recommended operating conditions ........................................................................................ 13
6 Electrical characteristics ............................................................................................................ 14
7 Timing characteristics ................................................................................................................ 23
7.1 Digital audio interface timing - I2S/DSP (in master/slave mode) ........................................ 23
7.2 Digital audio control timing - 2-wire control timing .............................................................. 24
8 Functional description ................................................................................................................ 26
8.1 Stereo codec ....................................................................................................................... 26
8.1.1 Input signal chain................................................................................................. 26
8.1.2 Microphone inputs ............................................................................................... 27
8.1.3 Auxiliary inputs..................................................................................................... 27
8.1.4 Stereo audio ADC................................................................................................ 28
8.1.5 Automatic level control (ALC) .............................................................................. 30
8.1.6 Noise gate............................................................................................................ 32
8.2 Output signal chain ............................................................................................................. 32
8.2.1 Stereo audio DAC................................................................................................ 32
8.2.2 Soft mute ............................................................................................................. 33
8.2.3 Output mixer and line-out amplifier...................................................................... 34
8.2.4 Headphone amplifier............................................................................................ 35
8.2.5 Ambient noise suppression ................................................................................. 37
8.2.6 Digital signal processing engine .......................................................................... 37
8.3 Programming the general purpose filter.............................................................................. 39
8.4 Hi-Fi recording..................................................................................................................... 40
8.4.1 5-band equaliser for recording path..................................................................... 40
8.4.2 Digital audio processing for the record path ........................................................ 42
8.5 Hi-Fi playback ..................................................................................................................... 43
8.5.1 5-band equaliser for playback path ..................................................................... 43
8.5.2 Digital audio processing for playback path .......................................................... 44
8.6 Telephone/Bluetooth voice recording/playback at low sample rates .................................. 45
8.6.1 Voice filtering for recording at low sample rates.................................................. 45
8.6.2 Voice filtering for playback at low sample rates .................................................. 46
8.6.3 Digital audio processing for phone applications .................................................. 48
9 INTERFACES................................................................................................................................ 49
Datasheet
Revision 3e
15-Oct-2015
CFR0011-120-00 Rev 5
2 of 105
© 2015 Dialog Semiconductor

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डाउनलोड[ DA7211 Datasheet.PDF ]


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