OVS在第15、16頁有解釋,看你 I2C 上的 R side 電壓選擇去。 " B6 _$ u* _1 j n: i 7 v0 Q; s( f APRE 是 TMDS Output de-emphasis adjustment ,可以先預留2個電阻,上拉和下拉電阻,等調適的時候看看哪個效果好,再決定。* o) ], `( Z( s/ u5 `9 S. d3 u
原文在第15頁。節錄於下方。 . @" w W) o1 {1 VThe PRE pin provides 3dB de-emphasis, allowing output signal pre-conditioning to offset interconnect losses from the TMDS141 outputs to a TMDS receiver. PRE is recommended to be set low while connecting to a receiver throw short PCB route.