diff --git a/library/util_adxcvr/util_adxcvr.v b/library/util_adxcvr/util_adxcvr.v
index 9f14027eb..c876c4647 100644
--- a/library/util_adxcvr/util_adxcvr.v
+++ b/library/util_adxcvr/util_adxcvr.v
@@ -1026,15 +1026,15 @@ module util_adxcvr (
   parameter   integer GTH_OR_GTX_N = 0;
   parameter   integer CPLL_TX_OR_RX_N = 0;
   parameter   integer CPLL_FBDIV = 2;
-  parameter   integer QPLL_REFCLK_DIV = 2;
+  parameter   integer QPLL_REFCLK_DIV = 1;
   parameter   integer QPLL_FBDIV_RATIO = 1;
   parameter   integer RX_OUT_DIV = 1;
-  parameter   integer RX_CLK25_DIV = 10;
+  parameter   integer RX_CLK25_DIV = 20;
   parameter   integer TX_OUT_DIV = 1;
-  parameter   integer TX_CLK25_DIV = 10;
-  parameter   [31:0]  PMA_RSV = 32'h00018480;
-  parameter   [72:0]  RX_CDR_CFG = 72'h03000023ff20400020;
-  parameter   [26:0]  QPLL_CFG = 27'h06801C1;
+  parameter   integer TX_CLK25_DIV = 20;
+  parameter   [31:0]  PMA_RSV = 32'h001e7080;
+  parameter   [72:0]  RX_CDR_CFG = 72'h0b000023ff10400020;
+  parameter   [26:0]  QPLL_CFG = 27'h0680181;
   parameter   [ 9:0]  QPLL_FBDIV =  10'b0000110000;
 
   localparam  integer NUM_OF_LANES = (TX_NUM_OF_LANES > RX_NUM_OF_LANES) ?
diff --git a/library/util_adxcvr/util_adxcvr_constr.xdc b/library/util_adxcvr/util_adxcvr_constr.xdc
index 20b13df10..92336c93a 100644
--- a/library/util_adxcvr/util_adxcvr_constr.xdc
+++ b/library/util_adxcvr/util_adxcvr_constr.xdc
@@ -1,7 +1,11 @@
 
 set_property shreg_extract no [get_cells -hier -filter {name =~ *up_rx_rst_done*}]
 set_property shreg_extract no [get_cells -hier -filter {name =~ *up_tx_rst_done*}]
+set_property shreg_extract no [get_cells -hier -filter {name =~ *rx_rate*}]
+set_property shreg_extract no [get_cells -hier -filter {name =~ *tx_rate*}]
 
 set_false_path -to [get_cells -hier -filter {name =~ *up_rx_rst_done_m1_reg && IS_SEQUENTIAL}]
 set_false_path -to [get_cells -hier -filter {name =~ *up_tx_rst_done_m1_reg && IS_SEQUENTIAL}]
+set_false_path -to [get_cells -hier -filter {name =~ *rx_rate_m1_reg* && IS_SEQUENTIAL}]
+set_false_path -to [get_cells -hier -filter {name =~ *tx_rate_m1_reg* && IS_SEQUENTIAL}]
 
diff --git a/library/util_adxcvr/util_adxcvr_ip.tcl b/library/util_adxcvr/util_adxcvr_ip.tcl
index 0162c5f78..d73da5444 100644
--- a/library/util_adxcvr/util_adxcvr_ip.tcl
+++ b/library/util_adxcvr/util_adxcvr_ip.tcl
@@ -5,11 +5,13 @@ source $ad_hdl_dir/library/scripts/adi_ip.tcl
 
 adi_ip_create util_adxcvr
 adi_ip_files util_adxcvr [list \
+  "util_adxcvr_constr.xdc" \
   "util_adxcvr_xcm.v" \
   "util_adxcvr_xch.v" \
   "util_adxcvr.v" ]
 
 adi_ip_properties_lite util_adxcvr
+adi_ip_constraints util_adxcvr "util_adxcvr_constr.xdc"
 
 ipx::remove_all_bus_interface [ipx::current_core]