Description
The AK4184A is a 12-bit A/D converter witch operates 125kHz (max) sampling rate with a 4-wire resistive touch screen controller (TSC), including low-on resistance switches, touch pressure measurement capability, a maximum 6 x 5 keypad scanner, eight GPIO ports, and a PWM generator for LED contrast control.
Features
- SPI Serial Interface.
- 12 bit SAR A/D Converter with S/H Circuit.
- 4-wire Resistive Touch Screen Interface.
- Sampling Frequency: 125 kHz (max).
- Pen Pressure Measurement.
- 6 x 5 Keypad Scanner.
- 8 GPIO Ports.
- PWM Generator for LED Bias Control.
- Power Supply: AVDD = 2.5V ∼ 3.6V IOVDD = 1.6V ∼ AVDD (Digital I/F).
- Low Power Consumption: 400μA.
- Package: 41pin BGA (4mm x 4mm, pitch 0.5mm)
MS0947-E-00 -1-
2.
KLT1C20DC9 Datasheet