This part is a kind of semiconductor called AK4482.

Function of this product has 111dB 192kHz 24-Bit 2ch DS DAC.

Manufacturers : AKM

Image and pinout :

Some of the text within the PDF file :

[AK4482] AK4482 111dB 192kHz 24-Bit 2ch ΔΣ DAC GENERAL DESCRIPTION The AK4482 is a cost-effective 24-bit DAC for digital audio equipments. The modulator uses AKM's multi-bit architecture, delivering wide dynamic range. The AK4482 has fully differential switched-cap filter outputs, removing the need for AC coupling capacitors and increasing performance for systems with excessive clock jitter. The AK4482 support up to 216kHz sampling rate, ideal for BD and AC-3 amplifier systems. It is housed in a space saving 16pin TSSOP package. FEATURES † Sampling Rate: 8kHz ∼ 216kHz † 128 x Over Sampling (Normal Speed Mode) † 64 x Over Sampling (Double Speed Mode) † 32 x Over Sampling (Quad Speed Mode) † 24 Bit 8 x FIR Digital Filter - High Quality Sound Short Delay Sharp Roll-off Filter (less [ ... ]

AK4482 PDF Datasheet Download