The VIA VT1612A Audio Codec conforms to the AC'97 2.2
specification providing 18-bit resolution performance.
With 2 channel outputs the VIA VT1612A provides high-performance
stereo quality for headphones or speaker connections.
Furthermore, an integrated headphone amplifier with
thermal shutdown reduces the need for further external
components. The VIA VT1612A includes analog mixer circuitry
for stereo enhancement to provide a pleasing 3D surround
sound effect for stereo media. For a completely digital
audio path the VIA VT1612A includes an integrated IEC958
line driver for S/PDIF compressed digital or LPCM audio
Four stereo and 2 mono audio inputs provided by the
VIA VT1612A enable connections to a wide range of audio
inputs such as microphones, line inputs, and phone connections.
Sample rate converters in the VIA VT1612A can be adjusted
in 1Hz increments providing maximum recording manipulation
capabilities, and hardware VU peak meters are provided
for PCM streams.
For maximum ease of integration the VIA VT1612A is
designed with aggressive power management to achieve
low power consumption. When used with a 3.3v analog
power supply, the power consumption can be further reduced.
The VIA VT1612A is available in a small footprint 48-pin
LQFP package. Typical applications of the VIA VT1612A
include integration into audio on motherboard solutions,
add-in cards, and other audio subsystems that require
stereo I/O with S/PDIF digital outputs.