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AK4184

TSC with Keypad Scanner and GPIO Expander

GENERALDESCRIPTION TheAK4184isa12-bitA/Dconverterwitchoperates125kHz(max)samplingratewitha4-wireresistivetouchscreencontroller(TSC),includinglow-onresistanceswitches,touchpressuremeasurementcapability,amaximum6x5keypadscanner,eightGPIOports,andaPWMgene

AK4184

TSC with Keypad Scanner and GPIO Expander; SPI Serial Interface\n12 bit SAR A/D Converter with S/H Circuit\n4-wire Resistive Touch Screen Interface\nSampling Frequency: 125 kHz (max)\nPen Pressure Measurement\n6 x 5 Keypad Scanner\n8 GPIO Ports\nPWM Generator for LED Bias Control\nPower Supply:\n?? AVDD = 2.5V ～3.6V\n?? IOVDD = 1.6V ～AVDD (Digital I/F)\nLow Power Consumption (400μA)\nPackage:?\n?? 41pin BGA (4mm x 4mm, pitch 0.5mm);

GENERAL DESCRIPTION\nThe AK4184 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. The AK4184 operates down to a 2.5V supply voltage, and it tolerates digital I/O interface voltage from 1.6V to AVDD in order to connect to low voltage controllers. The AK4184 supports SPI interface for communication to a host controller. The AK4184 is available in a 41-pin BGA package and it operates over a temperature range of -40°C to +85°C. The AK4184 is suitable for Cellular Phone, DSC, DVC, Smart Phone and MP3 player application systems.FEATURES\nSPI Serial Interface\n12 bit SAR A/D Converter with S/H Circuit\n4-wire Resistive Touch Screen Interface\nSampling Frequency: 125 kHz (max)\nPen Pressure Measurement\n6 x 5 Keypad Scanner\n8 GPIO Ports\nPWM Generator for LED Bias Control\nPower Supply:\n?? AVDD = 2.5V ～3.6V\n?? IOVDD = 1.6V ～AVDD (Digital I/F)\nLow Power Consumption (400μA)\nPackage:?\n?? 41pin BGA (4mm x 4mm, pitch 0.5mm)

AK4184

Analog I/F IC which includes 4-wire resistive Touch Screen Controller

AK4184VG

TSC with Keypad Scanner and GPIO Expander

GENERALDESCRIPTION TheAK4184isa12-bitA/Dconverterwitchoperates125kHz(max)samplingratewitha4-wireresistivetouchscreencontroller(TSC),includinglow-onresistanceswitches,touchpressuremeasurementcapability,amaximum6x5keypadscanner,eightGPIOports,andaPWMgene

AK4184A

TSC with Keypad Scanner and GPIO Expander

AK4184A

TSC with Keypad Scanner and GPIO Expander

AK4184AEG

TSC with Keypad Scanner and GPIO Expander