Datasheet

TPS65950
www.ti.com SWCS032E–OCTOBER 2008–REVISED JANUARY 2011
10.1 General Description ...................................................................................................... 129
11 Keyboard ........................................................................................................................ 130
11.1 Keyboard Connection ................................................................................................... 130
12 Clock Specifications ........................................................................................................ 131
12.1 Features ................................................................................................................... 131
12.2 Input Clock Specifications .............................................................................................. 132
12.2.1 Clock Source Requirements ................................................................................. 132
12.2.2 High-Frequency Input Clock ................................................................................. 132
12.2.3 32-kHz Input Clock ............................................................................................ 135
12.2.3.1 External Crystal Description ..................................................................... 136
12.2.3.2 External Clock Description ...................................................................... 138
12.3 Output Clock Specifications ............................................................................................ 140
12.3.1 32KCLKOUT Output Clock .................................................................................. 140
12.3.2 HFCLKOUT Output Clock .................................................................................... 142
12.3.3 Output Clock Stabilization Time ............................................................................. 143
13 Timing Requirements and Switching Characteristics ........................................................... 144
13.1 Timing Parameters ....................................................................................................... 144
13.2 Target Frequencies ...................................................................................................... 144
13.3 I
2
C Timing ................................................................................................................. 145
13.4 Audio Interface: TDM/I2S Protocol .................................................................................... 146
13.4.1 I2S Right- and Left-Justified Data Format ................................................................. 146
13.4.2 TDM Data Format ............................................................................................. 148
13.5 Voice/Bluetooth PCM Interfaces ....................................................................................... 149
13.6 JTAG Interfaces .......................................................................................................... 151
14 Debouncing Time ............................................................................................................. 153
15 External Components ....................................................................................................... 155
16 TPS65950 Package ........................................................................................................... 160
16.1 TPS65950 Standard Package Symbols .............................................................................. 160
16.2 Package Thermal Resistance Characteristics ....................................................................... 160
16.3 Mechanical Data ......................................................................................................... 161
16.4 ESD Specifications ...................................................................................................... 162
17 Glossary ......................................................................................................................... 163
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