ADSemiconductor
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TSM16C (16-CH Auto Sensitivity Calibration Capacitive Touch Sensor)
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Content
General ....................................................................................................................................... 2
Revision History ........................................................................................................................ 3
1 Pin Configuration ............................................................................................................... 5
2 Pin Description ................................................................................................................... 6
2.1 Pin Map (28 QFN package) .................................................................................. 7
Note 1 : Refer to 6.3 SYNC implementation ..................................................................... 7
3 Absolute Maximum Rating ................................................................................................ 8
4 ESD & Latch-up Characteristics ........................................................................................ 8
4.1 ESD Characteristics .............................................................................................. 8
4.2 Latch-up Characteristics ....................................................................................... 8
5 Electrical Characteristics .................................................................................................... 9
6 TSM16C Implementation ................................................................................................. 10
6.1 RBIAS & SRBIAS implementation ................................................................... 10
6.2 CS implementation ............................................................................................. 11
6.3 SYNC implementation........................................................................................ 12
6.4 RESET implementation ...................................................................................... 13
7 I
2
C Interface ...................................................................................................................... 14
7.1 IRBIAS Implementation ..................................................................................... 14
7.2 Start & Stop Condition ....................................................................................... 15
7.3 Data validity........................................................................................................ 16
7.4 Byte Format ........................................................................................................ 16
7.5 Acknowledge ...................................................................................................... 16
7.6 First Byte ............................................................................................................ 17
7.7 Transferring Data ................................................................................................ 18
7.8 I
2
C write and read operations in normal mode ................................................... 18
7.9 I
2
C timing diagram ............................................................................................. 19
8 TSM16C control register .................................................................................................. 20
8.1 I
2
C Register Map ................................................................................................ 20
8.2 Details ................................................................................................................. 21
9 Recommended TSM16C Initialize Flow (Example) ........................................................ 25
10 Recommended Circuit Diagram ....................................................................................... 26
10.1 Application Example in clean power environment ............................................ 26
10.2 Application Example in noisy environment ....................................................... 27
10.3 Example – Power Line Split Strategy PCB Layout .......................................................... 28
11 MECHANICAL DRAWING ........................................................................................... 29
11.1 Mechanical Drawing of TSM16C (28 QFN) ...................................................... 29
12 MARKING DESCRIPTION ............................................................................................ 31
12.1 Marking Description of TSM16C (28 MLF) ...................................................... 31
NOTES: ................................................................................................................................... 32
