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TPS65950BZXN Fiches technique(PDF) 3 Page - Texas Instruments

No de pièce TPS65950BZXN
Description  Integrated Power Management/Audio Codec Silicon Revision 1.0
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

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TPS65950
Integrated Power Management/Audio Codec
www.ti.com
SWCS032A – OCTOBER 2008 – REVISED DECEMBER 2008
4.5.3.3
OMAP3 Power-On Sequence
....................................................................... 63
4.5.4
Power-Off Sequence
............................................................................................ 63
4.5.4.1
Power-Off Sequence in Master Modes
............................................................ 64
5
Real-Time Clock and Embedded Power Controller
................................................................. 65
5.1
RTC
.......................................................................................................................... 65
5.1.1
Backup Battery
................................................................................................... 65
5.2
EPC
.......................................................................................................................... 65
6
Audio/Voice Module
............................................................................................................ 66
6.1
Audio/Voice Downlink (RX) Module
...................................................................................... 67
6.1.1
Earphone Output
................................................................................................ 67
6.1.1.1
Earphone Output Characteristics
.................................................................. 67
6.1.1.2
External Components and Application Schematic
............................................... 68
6.1.2
8-
Ω Stereo Hands-Free ........................................................................................ 68
6.1.2.1
8-
Ω Stereo Hands-Free Output Characteristics .................................................. 68
6.1.2.2
External Components and Application Schematic
............................................... 69
6.1.3
Headset
........................................................................................................... 70
6.1.3.1
Headset Output Characteristics
..................................................................... 70
6.1.3.2
External Components and Application Schematic
............................................... 71
6.1.4
Headset Pop-Noise Attenuation
............................................................................... 75
6.1.5
Predriver for External Class-D Amplifier
...................................................................... 76
6.1.5.1
Predriver Output Characteristics
.................................................................... 76
6.1.5.2
External Components and Application Schematic
............................................... 77
6.1.6
Vibrator H-Bridge
................................................................................................ 77
6.1.6.1
Vibrator H-Bridge Output Characteristics
.......................................................... 77
6.1.6.2
External Components and Application Schematic
............................................... 78
6.1.7
Carkit Output
..................................................................................................... 78
6.1.8
Digital Audio Filter Module
..................................................................................... 79
6.1.9
Digital Voice Filter Module
..................................................................................... 80
6.1.9.1
Voice Downlink Filter (Sampling Frequency at 8 kHz)
........................................... 80
6.1.9.2
Voice Downlink Filter (Sampling Frequency at 16 kHz)
......................................... 81
6.1.10
Boost Stage
..................................................................................................... 82
6.2
Audio/Voice Uplink (TX) Module
......................................................................................... 83
6.2.1
Microphone Bias Module
....................................................................................... 83
6.2.1.1
Analog Microphone Bias Module Characteristics
................................................ 85
6.2.1.2
External Components and Application Schematic
............................................... 86
6.2.1.3
Digital Microphone Bias Module Characteristics
................................................. 88
6.2.1.4
Silicon Microphone Characteristics
................................................................. 89
6.2.2
Stereo Differential Input
......................................................................................... 90
6.2.3
Headset Differential Input
...................................................................................... 90
6.2.4
FM Radio/Auxiliary Stereo Input
............................................................................... 91
6.2.4.1
External Components
................................................................................ 91
6.2.5
PDM Interface for Digital Microphones
....................................................................... 91
6.2.6
Uplink Characteristics
........................................................................................... 92
6.2.7
Microphone Amplification Stage
............................................................................... 93
6.2.8
Carkit Input
....................................................................................................... 93
6.2.9
Digital Audio Filter Module
..................................................................................... 94
6.2.10
Digital Voice Filter Module
..................................................................................... 95
6.2.10.1
Voice Uplink Filter (Sampling Frequency at 8 kHz)
............................................. 95
6.2.10.2
Voice Uplink Filter (Sampling Frequency at 16 kHz)
........................................... 97
7
USB HS 2.0 OTG Transceiver
............................................................................................... 99
7.1
USB Features
............................................................................................................... 99
7.2
USB Transceiver
.......................................................................................................... 100
Contents
3


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