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The 20bit, ΣΔADCs VT1617/1617A implements stereo recording and white noise removal to ensure the best
quality of recording. It features 8-channel hardware-expansion for flexible 7.1-channel applications. It also contains
a hardware down-mixing feature that allows the end users enjoy 6-channel audio with 2-channel or 4-channel
speakers. The analog mixer circuitry integrates a stereo enhancement to provide a pleasing 3D surround sound effect
for stereo media. The VT1617/1617A has a built-in quality headphone amplifier and a high-accuracy PLL for cost
saving. This codec is designed with aggressive power management to achieve low power consumption; when used
with a 3.3V analog supply, the owner consumption is further reduced.
AC’97 V2.3 Audio Codec
Fully compliant with AC’97 Revision 2.3
High Audio Quality
Support sampling rates up to 96KHz
Independent 20-bit ADC and 20-bit DAC
SNR (Signal to Noise Ratio) exceeds 95dB
Built-in 1Hz resolution VSR converter
Various Output Format
Support 8-channel outputs
Hardware down-mixed 6-channel to 2-channel or 4-channel
Center and LFE channel swapping
Alternative Line-Level outputs at surround output
MiTac Secret
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