Datasheet

Table Of Contents
ADV7188
Rev. A | Page 98 of 112
Bit
1
Address Register Bit Description 7 6 5 43210Comments Notes
ADC3_SW [3:0]. 0 0 0 0 No connection
0 0 0 1 No connection
0 0 1 0 No connection
0 0 1 1 No connection
0100 AIN4
0 1 0 1 No connection
0 1 1 0 No connection
0 1 1 1 No connection
1 0 0 0 No connection
1001 AIN7
1 0 1 0 No connection
1 0 1 1 No connection
1 1 0 0 No connection
1 1 0 1 No connection
1 1 1 0 No connection
1 1 1 1 No connection
0xF4 Drive Strength 0 0 Reserved
DR_STR_S [1:0]. These bits select the drive
strength for the sync output signals.
0 1 Medium-low drive strength (2x)
1 0 Medium-high drive strength (3x)
11High drive strength (4x)
00 Reserved
0 1 Medium-low drive strength (2x)
1 0 Medium-high drive strength (3x)
DR_STR_C [1:0]. These bits select the drive
strength for the clock output signal.
11 High drive strength (4x)
00 Reserved
0 1 Medium-low drive strength (2x)
10 Medium-high drive strength (3x)
DR_STR [1:0]. These bits select the drive
strength for the data output signals. Can be
increased or decreased for EMC or crosstalk
reasons.
11 High drive strength (4x)
Reserved. xx No delay
0xF8 IF Comp Control 0 0 0 Bypass mode 0 dB
IFFILTSEL [2:0]. IF filter selection for PAL and
NTSC.
2 MHz 5 MHz
NTSC filters
001−3 dB +2 dB
010−6 dB +3.5 dB
011−10 dB +5 dB
100Reserved
3 MHz 6 MHz
PAL filters
101−2 dB +2 dB
110−5 dB +3 dB
111−7 dB +5 dB
Reserved 0 0 0 0 0
0xF9 VS Mode Control EXTEND_VS_MAX_FREQ. 0 Limit maximum vsync frequency
to 66.25 Hz (475 lines/frame)
1Limit maximum vsync frequency
to 70.09 Hz (449 lines/frame)
0 Limit minimum vsync frequency
to 42.75 Hz (731 lines/frame)
EXTEND_VS_MIN_FREQ.
1 Limit minimum vsync frequency
to 39.51 Hz (791 lines/frame)
0 0 Autocoast mode
VS_COAST_MODE [1:0].
01 50 Hz coast mode
This value sets up the output coast
frequency.
10 60 Hz coast mode
11 Reserved
Reserved. 0 0 0 0
0xFB Peaking Control PEAKING_GAIN [7:0]. These bits increase/
decrease the gain for high frequency
portions of the video signal.
0 1 0 0 0 0 0 0
0xFC Coring Threshold 2 DNR_TH2 [7:0]. DNR Threshold 2. These bits
specify the maximum edge that is interpreted
as noise and is therefore blanked.
0 0 0 0 0 1 0 0
1
Shading indicates default settings.