adv7188 Analog Devices, Inc., adv7188 Datasheet - Page 98

• Manufacturer Part Number: adv7188
• Description: Multiformat Sdtv Video Decoder With Fast Switch Overlay Support
• Manufacturer: Analog Devices, Inc.

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