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TTP229-LSF Datasheet(PDF) 13 Page - Tontek Design Technology

Part # TTP229-LSF
Description  16 KEYS OR 8 KEYS TOUCH PAD DETECTOR IC
PDF  18 Pages
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Manufacturer  TONTEK [Tontek Design Technology]
Direct Link  http://www.tontek.com.tw
Logo TONTEK - Tontek Design Technology

TTP229-LSF Datasheet(HTML) 13 Page - Tontek Design Technology

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Preliminary
TTP229-LSF
TonTouchTM
10’/02/25
Page 13 of 18
Ver : 1.0
9. The timing from sleep mode to operation mode
Re-calibration
Period
Period
Detect
Wake-up
Sleep mode
Time is about 4sec
Time is about 4sec
Re-calibration
Key scanning
False Trigger
Sleep mode
Detected
Key-out
Trigger
Finger
Key
Scanning
Figure 9-1. The timing for false trigger
Valid Trigger
After detected key release and do not any trigger about 8sec
About 4sec
About 4sec
Sleep mode
Re-calibration
Re-calibration
Detected
Key-out
Period
Period
Detect
Wake-up
Sleep mode
Operation mode
Trigger
Finger
Key
Scanning
Figure 9-2. The timing for valid trigger



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