Realtek PDF datasheets for ALC5625

The ALC5625 is a Acoustic Echo Cancellation embedded highly-integrated dual I2S/PCM interface audio codec with multiple input/output ports and is designed for mobile computing and communications. It provides a dual-channel Hi-Fi codec for playback, and dual-channel ADC for recording via an I2S interface. In addition, an Independent Voice DAC is provided with PCM interface for Bluetooth applications.

Both Stereo audio and voice 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
- Mono (Bridge-Tied Load) or Stereo Single-ended AUXOUT output
- Mono (Bridge-Tied Load) or Stereo Single-ended Speaker output

Multiple 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 2.3 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.

ALC5625 can support 1 microphone acoustic processing including acoustic echo cancellation and noise suppression without beam-forming. The AEC function of ALC5625 removes echo from a voice communication in order to improve voice quality to the far end. And BrightVoice function enhances the speaker output of playback.

ALC5625 Digital power operates at supply voltages from 1.8V to 3.6V. Analog power operates from 2.3V to 3.6V, and Speaker power operates from 2.3V to 5V. 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 ALC5625 is available in a 7x7mm ‘Green’ QFN package, making it ideal for use in handheld portable systems.