QT60240-ATG Datasheet, PDF (22/26 Pages) List of Unclassifed Manufacturers – 16 AND 24 KEY QMATRIX TOUCH SENSOR ICs

Table 6.2 Setups Lookup Table
Typical values: For most touch applications, use the values shown in the outlined cells. Bold text items indicate default settings. The number to send to the QT is the number in
the leftmost column (0...15), not numbers from within the table. The QT uses lookup tables to translate the 0.. .15 to the parameters for each function.
NRD is an exception: it can range from 0...254 which is translated from 1 = 0.5s to 254 = 127s, in increments of 0.5s, with zero = infinity. 255 is illegal.
AWAKE is an exception: it can range from 1...255 which is translated from 1 = 0.1s to 255 = 25.5s , in increments of 0.1s. Zero is illegal.
DHT is an exception: it can range from 0...255 which is translated from 1 = 0.1s to 255 = 25.5s , in increments of 0.1s. Zero will disable DHT.
Index
Number
0
NTHR NDRIFT PDRIFT NDIL
FDIL
counts secs
secs counts counts
(Page 17) (Page 17) (Page 17) (Page 18) (Page 18)
Per key Per key Per key Per key Per key
4
0.1
0.1
Key off
unused
NRD
secs
(Page 18)
Per key
0 (Infinite)
Parameter
WAKE
BL
Pulses
(Page 20) (Page 19)
Per key Per key
Off
16
1
5
0.2
0.2
1
1
0.5 .. 127s - On -
32
2
6
0.3
0.3
-2-
2
Default=
3
7
0.4
0.4
3
3
10s
- 48 -
64
4
8
0.6
- 0.6 -
4
4
5
9
0.8
0.8
5
-5-
6
- 10 -
1
1
6
6
7
11
1.2
1.2
7
7
8
12
1.5
1.5
8
8
9
13
2
2
9
9
10
14
- 2.5 -
2.5
10
10
11
15
3.3
3.3
11
11
12
16
4.5
4.5
12
12
13
17
6
6
13
13
14
18
7.5
7.5
14
14
15
19
10
10
15
15
AKS
(Page 19)
Per key
- Off -
On
SSYNC
SLEEP
ms
MSYNC
AWAKE
secs
DHT
secs
(Page 19) (Page 20) (Page 19) (Page 20) (Page 20)
Per key Global Global Global Global
- Off -
16
- Off -
unused
Off
On
32
On
0.1...25.5s 0.1...25.5s
64
-125-
Default= Default=
2.5s
1s
250
500
1,000
2,000
lQ
22
QT60240-ISG R8.06/0906