QT1103-ISG

QT1103-ISG Datasheet

QT1103

Part	Datasheet
QT1103-ISG	QT1103-ISG (pdf)

PDF Datasheet Preview
QT1103 QTOUCH 10-KEY SENSOR IC DETECT SYNC/LP VSS SNS7K SNS7 SNS6K SNS6 SNS5K The QT1103 is designed for low cost appliance, mobile, and consumer electronics applications. QTouch technology is a type of patented charge-transfer sensing method well known for its robust, stable, EMC-resistant characteristics. It is the only all-digital capacitive sensing technology in the market today. This technology has over a decade of applications experience spanning thousands of designs. QTouch circuits are renowned for simplicity, reliability, ease of design, and cost effectiveness. QTouch sensors employ a single reference capacitor tied to two pins of the chip for each sensing key a signal trace leads from one of the pins to the sensing electrode which forms the key. The sensing electrode can be a simple solid shape such as a rectangle or circle. An LED can be placed near or inside the solid circle for illumination. The key electrodes can be designed into a conventional Printed Circuit Board PCB or Flexible Printed Circuit Board FPCB as a copper pattern, or as printed conductive ink on plastic film. SS /RST VDD OSC N/C SNS0 SNS0K SNS1 24 23 22 21 20 19 18 17 SNS8 25 SNS8K 26 SNS9 27 SNS9K 28 N/C 29 /CHANGE 30 1W 31 RX 32 QT1103 1 234 56 78 16 SNS5 15 SNS4K 14 SNS4 13 SNS3K 12 SNS3 11 SNS2K 10 SNS2 9 SNS1K AT A GLANCE Number of keys: 1 to 10 Technology: Patented spread-spectrum charge-transfer one-per-key mode Key outline sizes: 5mm x 5mm or larger panel thickness dependent widely different sizes and shapes possible Key spacings: 6mm or wider, center to center panel thickness, human factors dependent Electrode design: Single solid or ring shaped electrodes wide variety of possible layouts Layers required: One layer substrate electrodes and components can be on same side Substrates Electrode materials: FR-4, low cost CEM-1 or FR-2 PCB materials polyamide FPCB PET films, glass Copper, silver, carbon, ITO, Orgacon† ink virtually anything electrically conductive Panel materials: Plastic, glass, composites, painted surfaces low particle density metallic paints possible Adjacent Metal: Compatible with grounded metal immediately next to keys Panel thickness: Up to 50mm glass, 20mm plastic key size dependent Key sensitivity:

PDF Datasheet Preview

QT1103

QTOUCH 10-KEY SENSOR IC

DETECT SYNC/LP VSS SNS7K SNS7 SNS6K SNS6 SNS5K

The QT1103 is designed for low cost appliance, mobile, and consumer electronics applications.

QTouch technology is a type of patented charge-transfer sensing method well known for its robust, stable, EMC-resistant characteristics. It is the only all-digital capacitive sensing technology in the market today. This technology has over a decade of applications experience spanning thousands of designs.

QTouch circuits are renowned for simplicity, reliability, ease of design, and cost effectiveness.

QTouch sensors employ a single reference capacitor tied to two pins of the chip for each sensing key a signal trace leads from one of the pins to the sensing electrode which forms the key. The sensing electrode can be a simple solid shape such as a rectangle or circle. An LED can be placed near or inside the solid circle for illumination.

The key electrodes can be designed into a conventional Printed Circuit Board PCB or Flexible Printed Circuit Board FPCB as a copper pattern, or as printed conductive ink on plastic film.

SS /RST VDD OSC

N/C SNS0 SNS0K SNS1
24 23 22 21 20 19 18 17

SNS8 25 SNS8K 26

SNS9 27 SNS9K 28

N/C 29 /CHANGE 30
1W 31 RX 32

QT1103
1 234 56 78
16 SNS5 15 SNS4K 14 SNS4 13 SNS3K 12 SNS3 11 SNS2K 10 SNS2
9 SNS1K

AT A GLANCE

Number of keys:
1 to 10

Technology:

Patented spread-spectrum charge-transfer one-per-key mode

Key outline sizes:
5mm x 5mm or larger panel thickness dependent widely different sizes and shapes possible

Key spacings:
6mm or wider, center to center panel thickness, human factors dependent

Electrode design:

Single solid or ring shaped electrodes wide variety of possible layouts

Layers required:

One layer substrate electrodes and components can be on same side

Substrates Electrode materials:

FR-4, low cost CEM-1 or FR-2 PCB materials polyamide FPCB PET films, glass Copper, silver, carbon, ITO, Orgacon† ink virtually anything electrically conductive

Panel materials:

Plastic, glass, composites, painted surfaces low particle density metallic paints possible

Adjacent Metal:

Compatible with grounded metal immediately next to keys

Panel thickness:

Up to 50mm glass, 20mm plastic key size dependent

Key sensitivity:

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived QT1103-ISG Datasheet file may be downloaded here without warranties.

Datasheet ID: QT1103-ISG 519361