Analog Devices ADV8005, Hardware Reference Manual

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UG-707 ADV8005 Hardware Reference Manual
Figure 116: ED/HD Sinc Compensation Filter Enabled
Figure 117: ED/HD Sinc Compensation Filter Disabled
sinc_filt_df_en , Encoder Map, Address 0xE433[3]
This bit is used to disable the sinc compensation filter on DAC1, DAC2 and DAC3.
Function
sinc_filt_df_en Description
0 Disabled
1  Enabled
7.4.8. ED/HD Test Pattern Generator
ADV8005 is able to internally generate ED/HD black bar, uniform background color or hatch test patterns. It is not possible to output a color
bar test pattern while EH/HD video is being routed through the encoder. This test pattern can be enabled using hdtv_tp_en and the test pattern
used can be determined using hdtv_flat_tp .
y_colour[7:0] , cr_colour[7:0] , and cb_colour[7:0] are used to program the output color of the internal ED/HD test pattern generator, whether it
is the lines of the crosshatch pattern or the uniform field test pattern. They are not functional as color controls for external pixel data input.
hdtv_tp_en , Encoder Map, Address 0xE431[2]
This bit is used to enable the ED/HD test pattern generator.
Function
hdtv_tp_en Description
0 (default) ED/HD test pattern off
1 ED/HD test pattern on.
FREQUENCY (MHz)
0.5
–0.5
30 5 0
G
AI
N (
d
B)
10 15 20 25
0.4
0.1
–0.2
–0.3
–0.4
0.3
0.2
0
–0.1
06398-
067
FREQUENCY (MHz)
0.5
–0.5
30 5 0
G
AI
N (
d
B)
10 15 20 25
0.4
0.1
–0.2
–0.3
–0.4
0.3
0.2
0
–0.1
06398-
068
Rev. A | Page 254 of 317