ADV7180
Data Sheet
Bits
(Shading Indicates Default State)
Subaddress
Register
Bit Description
7
6
5
4
3
2
1
0
0
1
1
0
0
1
0
1
Comments
Notes
0xF4
Drive strength
DR_STR_S[1:0]; selects
the drive strength for
the sync output signals
Low drive strength (1×)
Medium low drive strength (2×)
Medium high drive strength (3×)
High drive strength (4×)
DR_STR_C[1:0]; selects
the drive strength for
the clock output signal
0
0
1
1
0
1
0
1
Low drive strength (1×)
Medium low drive strength (2×)
Medium high drive strength (3×)
High drive strength (4×)
DR_STR[1:0]; selects the
drive strength for the data
output signals; can be
increased or decreased for
EMC or crosstalk reasons
0
0
1
1
0
1
0
1
Low drive strength (1×)
Medium low drive strength (2×)
Medium high drive strength (3×)
High drive strength (4×)
Reserved
x
x
0xF8
IF comp
control
IFFILTSEL[2:0]; IF filter
selection for PAL and
NTSC
0
0
0
Bypass mode
0 dB
2 MHz
−3 dB
5 MHz
−2 dB
NTSC filters
0
0
0
1
0
1
1
0
1
0
1
0
−6 dB
+3.5 dB
+5 dB
−10 dB
Reserved
3 MHz
−2 dB
6 MHz
+2 dB
+3 dB
+5 dB
PAL filters
1
1
1
0
1
1
1
0
1
−5 dB
−7 dB
Reserved
0
0
0
0
0
0xF9
VS mode
control
EXTEND_VS_MAX_FREQ
0
1
Limits maximum VSYNC frequency to
66.25 Hz (475 lines/frame)
Limits maximum VSYNC frequency to
70.09 Hz (449 lines/frame)
EXTEND_VS_MIN_FREQ
VS_COAST_MODE[1:0]
0
1
Limits minimum VSYNC frequency to
42.75 Hz (731 lines/frame)
Limits minimum VSYNC frequency to
39.51 Hz (791 lines/frame)
0
0
1
1
0
1
0
1
Autocoast mode
50 Hz coast mode
60 Hz coast mode
Reserved
This value sets up
the output coast
frequency
Reserved
0
0
0
1
0
0
0
0
0xFB
0xFC
Peaking control
PEAKING_GAIN[7:0]
0
0
0
1
0
0
0
0
Increases/decreases the gain for high
frequency portions of the video signal
Coring
threshold
DNR_TH2[7:0]
0
0
0
0
Specifies the maximum edge that is
interpreted as noise and therefore
blanked
1 Shading indicates default values.
2 x indicates a bit that keeps the last written value.
Rev. G | Page 98 of 120
ADI [ ADI ]
