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KLT1C20DC9

Hasco
Part Number KLT1C20DC9
Manufacturer Hasco
Description Relays
Published Apr 22, 2014
Detailed Description [AK4184A] AK4184A TSC with Keypad Scanner and GPIO Expander GENERAL DESCRIPTION The AK4184A is a 12-bit A/D converter w...
Datasheet PDF File KLT1C20DC9 PDF File

KLT1C20DC9
KLT1C20DC9

Overview
[AK4184A] AK4184A TSC with Keypad Scanner and GPIO Expander GENERAL 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.
The AK4184A 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 AK4184A supports SPI interface for communication to a host controller.
The AK4184A is available in a 41-pin BGA package and it operates over a temperature range of -40°C to +85°C.
The AK4184A is suitable for Cellular Phone, DSC, DVC, Smart Phone and MP3 player application systems.
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- 2008/04 Free Datasheet http://www.
Datasheet4U.
com [AK4184A] C1 C2 C3 C4 C5 C6 R1 R2 R3 R4 R5 GP0 GP1 GP2 GP3 GP4 Keypad Scanner GPIO I/F XP GP5 GP6 GP7 IOVDD YP XN Control Logic SCLK CSN DOUT YN VREF+ AIN+ AIN- VREF- Serial Data I/F and Level Shifter DIN BUSY KEYIRQN 12bit ADC (SAR type) PENIRQN BRCONT PW M G e n e r a to r OSCILLATOR PEN and Keypad INTERRUPT RESETN AVDD VSS1 VSS2 Figure 1.
Block Diagram MS0947-E-00 -2- 2008/04 Free Datasheet http://www.
Datasheet4U.
com [AK4184A] ■ Ordering Guide AK4184AEG −40 ∼ +85°C AKD4184A AK4184A Evaluation board 41pin BGA (4mm x 4mm, 0.
5mm pitch) ■ Pin Layout (BGA 41pin) 7 6 5 4 3 2 1 AK4184AEG Top View A B C D E F G 7 6 5 4 3 2 1 NC C1 R4 R...


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