AKD4184A is a 4-wire resistive touch screen controller with a built-in keypad scanner, GPIO function, PWM brightness adjustment control circuit and 12-bit successive approximation A/D converter. This evaluation board can be easily evaluated by connecting a 4-wire touch screen to AK4184A.
AK4399 is a 32-bit DAC that corresponds to DVD-Audio systems. An internal circuit includes newly developed 32bit Digital Filter for better sound quality achieving low distortion characteristics and wide dynamic range. The AK4399 has full differential SCF outputs, removing the need for AC coupling capacitors and increasing performance for systems with excessive clock jitter. The AK4399 accepts 192kHz PCM data and 1-bit DSD data, ideal for a wide range of applications including Blu-Ray, DVD-Audio and SACD.
