MXT1664T3-ABESSQTP datasheet(25/98 Pages) MICROCHIP

25 / 98 page

MXT1664T3 2.0

 2018 Microchip Technology Inc.

DS40002054A-page 25

4.0

SENSOR LAYOUT

The specific electrode designs used in Microchip touchscreens are the subject of various patents and patent

applications. Further information is available on request.

The device supports various configurations of electrodes as summarized below:

• Touchscreen: 32 X × 52 Y maximum (subject to other configurations)

When designing the physical layout of the touch panel, the following rules must be obeyed:

• The Touchscreen object should be a regular rectangular shape in terms of the lines it uses.

• It is recommended that the Touchscreen should start at X0, Y0; if self-capacitance measurements are enabled,

the Touchscreen must start at X0, Y0. If a design requires the touchscreen to be located in a region that does not

start at X0, Y0, seek advice from Microchip first.

4.1

Screen Size

Table 4-1 lists some typical screen size and electrode pitch combinations to achieve various aspect ratios.

TABLE 4-1:

TYPICAL SCREEN SIZES

Aspect Ratio

Matrix Size

Node Count

Screen Diagonal (Inches)

3.8 mm Pitch (1)

5 mm Pitch

6 mm Pitch

6.5 mm Pitch

16:10

X = 32, Y = 52

1664

9.13

12.02

14.42

15.62

16:9

X = 29, Y = 52

1508

8.91

11.72

14.06

15.24

4:3

X = 32, Y = 43

1376

8.02

10.55

12.66

13.72

2:1

X = 26, Y = 52

1352

8.7

11.44

13.73

14.88

Note

Recommended sensor pitch for 1.5 mm passive stylus tip diameter

The figures given in the table are for a Touchscreen and show the largest node count possible to achieve the desired

aspect ratio.

MXT1664T3-ABESSQTP Datasheet(PDF) 25 Page - Microchip Technology

MXT1664T3-ABESSQTP Datasheet(HTML) 25 Page - Microchip Technology

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

Datasheet Download

Link URL