SPRUI30H November 2015 – May 2024 DRA745 , DRA746 , DRA750 , DRA756
The scaler filter coefficient tables are pre-generated using a MATLAB® program for various scaling factor ranges. Table 9-31 provides a general selection guide table for coefficient data files.
The mentioned .dat files are available in Section 9.4.7.4.
Scaler | Scale Factor | Coeff table |
---|---|---|
HS Polyphase Filter | All upscaling | Section 9.4.7.4.1.1, ppfcoef_scael_eq_1_32_phases_flip.dat |
½ or ¼ down scaling | Section 9.4.7.4.1.1, ppfcoef_scale_eq_1_32_phases_flip.dat | |
> 15/16 | Section 9.4.7.4.1.9, ppfcoef_scale_eq_15div16_32_phases_flip.dat | |
> 14/16 | Section 9.4.7.4.1.8, ppfcoef_scale_eq_14div16_32_phases_flip.dat | |
> 13/16 | Section 9.4.7.4.1.7, ppfcoef_scale_eq_13div16_32_phases_flip.dat | |
> 12/16 | Section 9.4.7.4.1.6, ppfcoef_scale_eq_12div16_32_phases_flip.dat | |
> 11/16 | Section 9.4.7.4.1.5, ppfcoef_scale_eq_11div16_32_phases_flip.dat | |
> 10/16 | Section 9.4.7.4.1.4, ppfcoef_scale_eq_10div16_32_phases_flip.dat | |
> 9/16 | Section 9.4.7.4.1.3, ppfcoef_scale_eq_9div16_32_phases_flip.dat | |
> 8/16 | Section 9.4.7.4.1.2, ppfcoef_scale_eq_8div16_32_phases_flip.dat(1) | |
VS Polyphase Filter | Upscaling | Section 9.4.7.4.2.1, ppfcoef_scale_eq_1_32_phases_ver_5tap_flip.dat |
> 15/16 | Section 9.4.7.4.2.6.8, ppfcoef_scale_eq_15div16_32_phases_ver_5tap_flip.dat | |
> 14/16 | Section 9.4.7.4.2.6.7, ppfcoef_scale_eq_14div16_32_phases_ver_5tap_flip.dat | |
> 13/16 | Section 9.4.7.4.2.6.6, ppfcoef_scale_eq_13div16_32_phases_ver_5tap_flip.dat | |
> 12/16 | Section 9.4.7.4.2.6.5, ppfcoef_scale_eq_12div16_32_phases_ver_5tap_flip.dat | |
> 11/16 | Section 9.4.7.4.2.6.4, ppfcoef_scale_eq_11div16_32_phases_ver_5tap_flip.dat | |
> 10/16 | Section 9.4.7.4.2.6.3, ppfcoef_scale_eq_10div16_32_phases_ver_5tap_flip.dat | |
> 9/16 | Section 9.4.7.4.2.6.2, ppfcoef_scale_eq_9div16_32_phases_ver_5tap_flip.dat | |
> 8/16 | Section 9.4.7.4.2.6.1, ppfcoef_scale_eq_8div16_32_phases_ver_5tap_flip.dat | |
else | For down-scaling <8/16, RAV filter is recommended. In this case, coeffcients for vertical scaling need to be loaded. |