ALC5616
Datasheet
1. General Description
The ALC5616 is a high performance, low power, stereo channel I2S interface audio CODEC. The
transmitted data can from analog input or digital microphone input. Also the received data can to
headphone output, line output.
The ALC5616 features an ultra low power cap-free headphone amplifier. It consumes only less than
6.5mW power during playback, providing mobile system longer battery life under headphone listening
mode.
The integrated DRC(Dynamic Range Controller) and 7-band parametric Equalizer provide further digital
sound processing capability of audio playback paths. The DRC in ALC5616 continuously monitors the
DAC output level. When the power level is low, it increases the input signal gain to make it sound louder.
At the same time, if a peaking signal is detected, it autonomously reduces the applied gain to avoid hard
clipping. It ensures the maximum/consistent signal amplitude without producing audio clipping and
speaker damage. The 7-band parametric Equalizer contains 7 independent filters with programmable gain,
center frequency and bandwidth to tailor the frequency characteristics of embedded speaker system
according to user preferences.
For microphone recording, the DRC in ALC5616 can be used as AGC(Auto Gain Controller) to maintain
a constant recording volume. Besides, a dynamic wind reduction filter is built in on recording path. The
filter can detect the level of wind noise and on/off dynamically to keep the recording quality.
ALC5616 only requires two voltage supplies and consume ultra low power, making it ideal for mobile
devices.
Two-Channel Audio Hub/CODEC and SounzRealTM
Digital Sound Effect for Mobile Devices
1
Rev. 0.1
REALTEK [ Realtek Semiconductor Corp. ]
