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Realtek PDF datasheets for ALC5672

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File type


File name alc5672vb_datasheet_0.91.pdf
Datasheet version 0.91
Release 2014-01-21  [January '14]
File size 9,79 MB
Downloaded 78×

Realtek PDF datasheet ALC5672 for free download

Designed for the following chipset:
- ALC5672-VB
- ALC5672-VB-CG
- ALC5672-VB-CGT
- ALC5672R-VB-CG

The ALC5672 is a high performance, low power, dual I2S interface audio CODEC with embedded low power/high performance Voice DSP. Dual I2S interface can connect to different devices and let the ALC5672 to be an Audio Hub. Each device can pass through the Audio Hub and then perform as input or output application. Asynchronous Sample Rate Converter (ASRC) provides independent and asynchronous connections to different processors, such as an application processor, baseband processor or wireless transceiver(BT).

Stereo Class-D speaker amplifiers provide 1.5W per channel into 8Ω or 2.8W per channel into 4Ω with a 5V supply, with high THD+N performance, excellent PSRR and low EMI. A mono differential earpiece amplifier is also provided, providing output from any DAC or Analog-in.

The ALC5672 features a Class-G type ultra low power cap-free headphone amplifier. It is a high efficiency audio amplifier with an integrated Class-G voltage converter that enhances efficiency at low output power. It consumes only around 5mW power during playback, providing mobile system longer battery life under headphone listening mode.

The integrated multi-section DRC(Dynamic Range Controller) and 14-band parametric Equalizer provide further digital sound processing capability of audio playback paths. The multi-section DRC in ALC5672 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 14-band parametric Equalizer contains each channel has 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 ALC5672 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. The ALC5672 also integrates independent 6-band parametric Equalizer for recording path. They can use to compensate microphone device frequency response.

ALC5672 embedded a low power, high performance voice processor. The 140MIPS voice processor provides advanced voice processing features, including exceptional noise suppression, echo cancellation and advanced Beam-Forming under low power consumption. The voice processor is optimized for advanced voice processing to improve voice quality for voice communication and recording in noisy environments.

SounzReal post-processing technology is configurable to provide better listening experience. BassBack EXP bring LFE(low frequency effect) to listeners without subwoofer needed. TruTreble EXP adds processed harmonic tones at high frequency, bringing more melody and details for music listening.

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