CIRRUS LOGIC CS4398 DAC chip

CIRRUS LOGIC CS8422 SRC chip

3.7 V battery,

SNR up to 108 Db,

THD lowers than 0.003%

The precision of 0805 resistance is up to 1% in the simulation

Black 3U PCB

3U Gilt RCA interface for SPDIF IN/OUT (top grade)

3U Gilt interface for 6.3mm earphone (top grade)

The rate of the Jitter is lower than 5ps