diff --git a/tb_txt_files/coeffs.vhd b/tb_txt_files/coeffs.vhd
new file mode 100644
index 0000000..11e2eb7
--- /dev/null
+++ b/tb_txt_files/coeffs.vhd
@@ -0,0 +1,8 @@
+library ieee;
+USE ieee.std_logic_1164.all;
+USE work.FIVEn_DFT_PKG.all;
+package coeff is
+  TYPE vect_cos_sin_k_pi_over_n_wb IS ARRAY (0 TO cst_nb_wn_coeffs-1) OF smpl_cos_sin_wb ;
+  CONSTANT cos_k_pi_over_n_wb : vect_cos_sin_k_pi_over_n_wb := ("01000000","00111101","00110100","00100110","00010100","00000000","11101100","11011010","11001100","11000011");
+  CONSTANT sin_k_pi_over_n_wb : vect_cos_sin_k_pi_over_n_wb := ("00000000","11101100","11011010","11001100","11000011","11000000","11000011","11001100","11011010","11101100");
+end package coeff;
\ No newline at end of file