diff --git a/libraries/io/aduh/src/vhdl/aduh_quad_scope.vhd b/libraries/io/aduh/src/vhdl/aduh_quad_scope.vhd
index 3c5e420329e27b7a8cdedc260450e0b70a2d7450..81a84c4626705eb5d57a901f84d8124394eebd1a 100644
--- a/libraries/io/aduh/src/vhdl/aduh_quad_scope.vhd
+++ b/libraries/io/aduh/src/vhdl/aduh_quad_scope.vhd
@@ -39,8 +39,7 @@ ENTITY aduh_quad_scope IS
     g_ai   : t_c_aduh_dd_ai := c_aduh_dd_ai
   );
   PORT (
-    -- Sample clock
-    SCLK         : IN STD_LOGIC := '0';  -- sample clk, use only for simulation purposes
+    DCLK         : IN STD_LOGIC := '0';  -- digital processing clk
     
     -- Streaming samples (can be from ADU or from internal WG)
     sp_sosi_arr  : IN t_dp_sosi_arr(0 TO g_ai.nof_sp-1)  -- = [0:3] = Signal Paths [A,B,C,D]
@@ -65,14 +64,15 @@ BEGIN
   u_dp_scope : ENTITY dp_lib.dp_wideband_sp_arr_scope
   GENERIC MAP (
     g_sim                 => g_sim,
+    g_use_sclk            => FALSE,
     g_nof_streams         => g_ai.nof_sp,
     g_wideband_factor     => c_wideband_factor,
     g_wideband_big_endian => FALSE,
     g_dat_w               => g_ai.port_w
   )
   PORT MAP (
-    -- Sample clock
-    SCLK         => SCLK,
+    -- Digital processing clk
+    DCLK         => DCLK,
     
     -- Streaming samples
     sp_sosi_arr  => dp_sosi_arr   -- = [3:0] = Signal Paths [D,C,B,A]
diff --git a/libraries/io/aduh/tb/vhdl/tb_mms_aduh_quad.vhd b/libraries/io/aduh/tb/vhdl/tb_mms_aduh_quad.vhd
index 4458526eac78d7d4bf8d0637addf5f37f74de695..a0921a0764eca172632400d1a843a8cf51726d75 100644
--- a/libraries/io/aduh/tb/vhdl/tb_mms_aduh_quad.vhd
+++ b/libraries/io/aduh/tb/vhdl/tb_mms_aduh_quad.vhd
@@ -296,8 +296,8 @@ BEGIN
     g_ai   => c_aduh_dd_ai
   )
   PORT MAP (
-    -- Sample clock
-    SCLK         => SCLK,
+    -- Digital processing clock
+    DCLK         => dp_clk,
     
     -- Streaming samples (can be from ADU or from internal WG)
     sp_sosi_arr  => aduh_sosi_arr