I moved an older LCD TV (LG Model DU-37LZ30) to my main audio setup, which has no option to output PCM digital. The only audio output is DTS SPDIF Toslink. It generates only white noise on my SMSL SD-1955. What is a good DAC that takes DTS/AC-3 signal?

CHEAP = $100 or less
Working well = SD-1955 level audio performance

Any review or forum link will be appreciated.