ADV7185 Datasheet, PDF (23/40 Pages) Analog Devices – Professional NTSC/PAL Video Decoder with 10-Bit CCIR656 Output

ADV7185
Table V. Input Control Register (Subaddress 00)
Bit Description Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting
INSEL[3:0]¹
0
0
0
0
CVBS In on AIN1²
0 0 0 1 CVBS In on AIN2
0 0 1 0 CVBS In on AIN3
0 0 1 1 CVBS In on AIN4
0 1 0 0 CVBS In on AIN5
0 1 0 1 CVBS In on AIN6
0
1
1
0
Y on AIN1, C on AIN4³
0 1 1 1 Y on AIN2, C on AIN5
1 0 0 0 Y on AIN3, C on AIN6
1
0
0
1
Y on AIN1, U on AIN4, V on AIN5⁴
1 0 1 0 Y on AIN2, U on AIN3, V on AIN6
VID_SEL[3:0]⁵ 0
0
0
0
Auto Detect PAL (BGHID), NTSC without
Pedestal
0001
Auto Detect PAL (BGHID), NTSC (M) with
Pedestal
0010
Auto Detect PAL (N), NTSC (M) without
Pedestal
0011
Auto detect PAL (N), NTSC (M) with Pedestal
0100
NTSC (M) without Pedestal
0101
NTSC (M) with Pedestal
0110
NTSC 4.43 without Pedestal
0111
NTSC 4.43 with Pedestal
1000
PAL BGHID without Pedestal
1001
PAL N with Pedestal
1010
PAL M without Pedestal
1011
PAL M with Pedestal
1100
PAL Combination N
1101
PAL Combination N with Pedestal
NOTES
1_{Allows the user to select an input channel as well as the input format.}
2_Composite
3_S-Video
4_YUV
5_{Allows the user to select the input video standard.}
Table VI. Video Selection Register (Subaddress 01)
Bit Description Bit 7
VID_QUAL[1:0] ¹
SQPE ²
DIFFIN ³
FFSC ⁴
BETACAM
RESERVED
ASE⁶
1
0
Bit 6
0
Bit 5
0
1
Bit 4
0
1
Bit 3
0
1
Bit 2
0
1
Bit 1
0
0
1
1
Bit 0
0
1
0
1
Register Setting
Broadcast Quality
TV Quality
VCR Quality
Surveillance Quality
Standard Mode
Enable Square Pixel Mode
Single-Ended Inputs
Differential Inputs
Standard Video Operation
Select 4 FSC Mode ⁵
Standard Video Input
Betacam Input Enable
Set to Zero
INSEL change will not cause reacquire.
INSEL change will trigger reacquire.
NOTES
1_{Allows the user to influence the time constant of the system depending on the input video quality.}
2_{Allows the user to enable/disable the square pixel operation.}
3_{Allows the user to select a differential input mode for every entry in the INSEL[3:0] table.}
4_{4 FSC Mode. Allows the selection of a special NTSC mode where the data is resampled to 4 FSC sampling rate. As a result the LLC will operate at a 4 FSC rate as well.}
Only valid for NTSC input.
5_{NTSC only}
6_{Automatic Startup Enable. When set a change in the INSEL register will automatically be detected and lead the device to enter a video reacquire mode. May be}
disabled for genlocked video sources.
REV. 0
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