diff --git a/firmware/cpld/sgpio_if/top.ucf b/firmware/cpld/sgpio_if/top.ucf
index b446469d..f3b7b65b 100755
--- a/firmware/cpld/sgpio_if/top.ucf
+++ b/firmware/cpld/sgpio_if/top.ucf
@@ -23,7 +23,7 @@ NET "CODEC_X2_CLK" LOC="27" |IOSTANDARD=LVCMOS33;
 #NET "GCLK0" LOC="22" |IOSTANDARD=LVCMOS33;
 
 NET "CODEC_X2_CLK" TNM_NET = CODEC_X2_CLK;
-TIMESPEC TS_codec_x2_data = PERIOD "CODEC_X2_CLK" 50 ns;
+TIMESPEC TS_codec_x2_data = PERIOD "CODEC_X2_CLK" 25 ns;
 
 NET "DA<7>" LOC="35" |IOSTANDARD=LVCMOS33;
 NET "DA<6>" LOC="36" |IOSTANDARD=LVCMOS33;