Chroma 4X Decimation Filter Selection In Stage 2 - Analog Devices Advantiv ADV7604 Hardware Manual

Coefficient Register Name
Coeff7
Coeff8
Coeff9
Coeff10
8.3.4

Chroma 4x Decimation Filter Selection in Stage 2

CHROMA4X_MAN_EN, DPP Map, Address 0x28, [4]
The CHROMA4X_MAN_EN
filter response and manual selection of the decimation filters.
set the chosen filter.
Function
CHROMA4X_MAN_EN
0
1
CHROMA4X_FILT_SEL, DPP Map, Address 0x28, [6:5]
CHROMA4X_FILT_SEL
filters. For the selection to be effective, manual control must be enabled by
CHROMA4X_MAN_EN.
Function
CHROMA4X_FILT_SEL
00
01
10
11
Rev. F August 2010
PROG_COEFF7_CHBC[11:8]
PROG_COEFF7_CHBC[7:0]
PROG_COEFF8_CHBC[11:8]
PROG_COEFF8_CHBC[7:0]
PROG_COEFF9_CHBC[11:8]
PROG_COEFF9_CHBC[7:0]
PROG_COEFF10_CHBC[11:8]
PROG_COEFF10_CHBC[7:0]
bit allows the user to switch between the default chroma decimation
Description
Default selection for decimation filters
Decimation filter response defined by
CHROMA4X_FILT_SEL
controls the manual selection of the filter response for the decimation
Description
Bypass DCM
DCM Filter response with Fc = 0.26 * Fs/2 (red in
DCM Filter response with Fc = 0.43 * Fs/2 (blue in
DCM Filter response with Fc = 0.68 * Fs/2 (purple in
54)
197
DPP Map Register
Location
Address 0x20[3:0]
Address 0x21[7:0]
Address 0x22[3:0]
Address 0x23[7:0]
Address 0x24[3:0]
Address 0x25[7:0]
Address 0x26[3:0]
Address 0x27[7:0]
CHROMA4X_FILT_SEL
ADV7604
is used to
Figure 54)
Figure 54)
Figure