AD7183 datasheet(22/40 Pages) AD

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REV. 0

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ADV7183

Table V. Input Control Register (Subaddress 00)

Bit Description

Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0Register Setting

INSEL[3:0]

0000

CVBS In on AIN1

0001

CVBS In on AIN2

0010

CVBS In on AIN3

0011

CVBS In on AIN4

0100

CVBS In on AIN5

0101

CVBS In on AIN6

0110

Y on AIN1, C on AIN4

0111

Y on AIN2, C on AIN5

1000

Y on AIN3, C on AIN6

1001

Y on AIN1, U on AIN4,V on AIN5

1010

Y on AIN2, U on AIN3,V on AIN6

VID_SEL[3:0]

0000

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

1Allows the user to select an input channel as well as the input format.

2Composite

3S-Video

4YUV

5Allows the user to select the input video standard.

Table VI. Video Selection Register (Subaddress 01)

Bit Description Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Register Setting

VID_QUAL[1:0]

Broadcast Quality

TV Quality

VCR Quality

Surveillance Quality

SQPE

Standard Mode

Enable Square Pixel Mode

DIFFIN

Single-Ended Inputs

Differential Inputs

FFSC

Standard Video Operation

Select 4 FSC Mode

BETACAM

Standard Video Input

Betacam Input Enable

RESERVED

Set to Zero

ASE

INSEL change will not cause reacquire.

INSEL change will trigger reacquire.

NOTES

1Allows the user to influence the time constant of the system depending on the input video quality.

2Allows the user to enable/disable the square pixel operation.

3Allows the user to select a differential input mode for every entry in the INSEL[3:0] table.

44 F

SC Mode. Allows the selection of a special NTSC mode where the data is resampled to 4 F SC sampling rate. As a result the LLC will operate at a 4 F SC rate as well.

Only valid for NTSC input.

5NTSC only

6Automatic 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.

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