TPS65950 datasheet(3/171 Pages) TI

3 / 171 page

TPS65950

www.ti.com

SWCS032E – OCTOBER 2008 – REVISED JANUARY 2011

4.5.2.1

C027.0 Mode

....................................................................................... 59

4.5.2.2

C021.M Mode

...................................................................................... 59

4.5.3

Power-On Sequence

........................................................................................... 59

4.5.3.1

Timings Before Sequence_Start

................................................................. 59

4.5.3.2

OMAP2 Power-On Sequence

.................................................................... 60

4.5.3.3

OMAP3 Power-On Sequence

.................................................................... 61

4.5.3.4

Power On in Slave_C021_Generic Mode

....................................................... 63

4.5.4

Power-Off Sequence

........................................................................................... 63

4.5.4.1

Power-Off Sequence in Master Modes

.......................................................... 63

Real-Time Clock and Embedded Power Controller

................................................................. 65

5.1

RTC

......................................................................................................................... 65

5.1.1

Backup Battery

.................................................................................................. 65

5.2

EPC

......................................................................................................................... 65

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

Ω Stereo Hands-Free

........................................................................................ 68

6.1.2.1

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

............................................. 72

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

............................................................................................... 78

6.1.6.1

Vibrator H-Bridge Output Characteristics

....................................................... 78

6.1.6.2

External Components and Application Schematic

............................................. 78

6.1.7

Carkit Output

.................................................................................................... 79

6.1.8

Digital Audio Filter Module

.................................................................................... 80

6.1.9

Digital Voice Filter Module

..................................................................................... 80

6.1.9.1

Voice Downlink Filter (Sampling Frequency at 8 kHz)

........................................ 81

6.1.9.2

Voice Downlink Filter (Sampling Frequency at 16 kHz)

...................................... 82

6.1.10

Boost Stage

..................................................................................................... 82

6.2

Audio/Voice Uplink (TX) Module

......................................................................................... 84

6.2.1

Microphone Bias Module

...................................................................................... 84

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

............................................... 87

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

Contents

TPS65950 Datasheet(PDF) 3 Page - Texas Instruments

TPS65950 Datasheet(HTML) 3 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL