The ALC5624 is a highly-integrated I2S/PCM interface audio codec with multiple input/output ports and is designed for mobile computing and communications. It provides a stereo DAC for playback, and a stereo ADC for recording via the I2S/PCM interface.Stereo audio functions are supported via the I2S/PCM configurable interface. To reduce component count, the device can connect directly to:• MONO or stereo differential analog inputs• Stereo headphone• Single-end or BTL MONO output• MONO or Stereo Bridge-Tied Load (BTL) speakerMultiple analog input and output pins are provided for seamless integration with analog connected wireless communication devices. Differential input/output connections efficiently reduce noise interference, providing better sound quality. Class-AB or Class-D amplifiers are easily swapped via simple register configuration, and the 1 Watt speaker removes the need for an additional amplifier, further cutting both cost and required board area. Additionally, a flexible hardware 5-band equalizer with configurable gain, bandwidth, and center frequency, and enriches the sound experience.To extend battery life, each section of the device can be powered down individually under software control. Leakage current in maximum power saving state is less than 10µA. The ALC5624 digital power operates at supply voltages from 1.8 to 3.6Volts, analog power operates at supply voltages from 2.3 to 3.6Volts, and speaker power operates from 2.3V to 5V.The ALC5624 is available in a 7x7mm ‘Green’ QFN package, making it ideal for use in handheld portable systems.Applications:• Tablet PC system/Ultra-Mobile PC (UMPC)• GPS/Personal Navigation Device (PND) or Multi-Media phone• PDA Phone/Smartphone• Personal Media Player (PMP) Freesky Electronics (and its e-commerce division: jotrin.com) is an authorized Realtek distributor.