WT21(2010) Просмотр технического описания (PDF) - Unspecified
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WT21 Datasheet PDF : 54 Pages
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8.1.2 Long Frame Sync.......................................................................................... 27
8.1.3 Short Frame Sync ......................................................................................... 28
8.1.4 Multi-Slot Operation ...................................................................................... 28
8.1.5 GCI Interface ............................................................................................... 29
8.1.6 Slots and Sample Formats ............................................................................. 29
8.1.7 Additional Features ....................................................................................... 30
8.1.8 PCM Timing Information ................................................................................ 31
8.1.9 PCM_CLK and PCM_SYNC Generation .............................................................. 34
8.1.10 PCM Configuration ..................................................................................... 34
8.2 Digital Audio Interface (I2S) ................................................................................ 37
9 Power Control and Regulation.................................................................................... 40
9.1 Power Control and Regulation .............................................................................. 40
9.2 VREG_ENABLE ................................................................................................... 40
9.3 RST#................................................................................................................ 40
9.4 Digital Pin States on Reset .................................................................................. 41
10 Bluetooth Radio .................................................................................................... 43
10.1
Bluetooth Receiver........................................................................................ 43
10.1.1 RSSI Analogue to Digital Converter .............................................................. 43
10.2
Bluetooth Transmitter ................................................................................... 43
11 Electrical Characteristics ........................................................................................ 44
11.1
Absolute Maximum Ratings ............................................................................ 44
11.2
Recommended Operating Conditions ............................................................... 44
11.3
Input/Output Terminal Characteristics ............................................................. 44
11.3.1 Linear Voltage Regulator............................................................................. 44
11.3.2 Digital ...................................................................................................... 45
11.3.3 Reset ....................................................................................................... 45
11.3.4 32 kHz External Reference Clock.................................................................. 45
11.4
Power Consumption ...................................................................................... 46
12 Physical Dimensions .............................................................................................. 47
13 Layout Guidelines ................................................................................................. 50
13.1
WT21-N....................................................................................................... 50
13.2
WT21-A ....................................................................................................... 50
14 Certifications ........................................................................................................ 52
14.1
Bluetooth .................................................................................................... 52
14.2
FCC ............................................................................................................ 52
14.3
CE .............................................................................................................. 53
14.4
Industry Canada (IC) .................................................................................... 53
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