ADV7282 datasheet(17/32 Pages) AD

17 / 32 page

Data Sheet

ADV7282

Rev. A | Page 17 of 32

INPUT CONFIGURATION

The input format of the ADV7282/ADV7282-M is specified

using the INSEL[4:0] bits (see Table 12). These bits also configure

the SDP core to process CVBS, differential CVBS, Y/C (S-Video),

or component (YPrPb) format. The INSEL[4:0] bits are located

in the user sub map of the register space at Address 0x00[4:0].

For more information about the registers, see the Register Maps

section.

The INSEL[4:0] bits specify predefined analog input routing

schemes, eliminating the need for manual mux programming

and allowing the user to route the various video signal types

to the decoder. For example, if the CVBS input is selected, the

remaining channels are powered down.

Table 12. Input Format Specified by the INSEL[4:0] Bits

INSEL[4:0]

Bit Value

Video Format

Analog Inputs

ADV7282

ADV7282-M

00000

CVBS

CVBS input on AIN1

00001

CVBS

CVBS input on AIN2

00010

CVBS

Reserved

CVBS input on AIN3

00011

CVBS

Reserved

CVBS input on AIN4

00100

Reserved

00101

Reserved

00110

CVBS

CVBS input on AIN3

CVBS input on AIN5

00111

CVBS

CVBS input on AIN4

CVBS input on AIN6

01000

Y/C (S-Video)

Y input on AIN1;

C input on AIN2

Y input on AIN1;

C input on AIN2

01001

Y/C (S-Video)

Reserved

Y input on AIN3;

C input on AIN4

01010

Reserved

01011

Y/C (S-Video)

Y input on AIN3;

C input on AIN4

Y input on AIN5;

C input on AIN6

01100

YPrPb

Reserved1

Y input on AIN1;

Pb input on AIN2;

Pr input on AIN3

01101

Reserved

01110

Differential CVBS

Positive input on AIN1;

Negative input on AIN2

Positive input on AIN1;

Negative input on AIN2

01111

Differential CVBS

Reserved

Positive input on AIN3;

Negative input on AIN4

10000

Reserved

10001

Differential CVBS

Positive input on AIN3;

Negative input on AIN4

Positive input on AIN5;

Negative input on AIN6

10010 to 11111

Reserved

Note that it is possible for the ADV7282 to receive YPbPr formats; however, a manual muxing scheme is required. In this case luma(Y) is fed in on AIN1 or AIN3, blue

chroma (Pb) is fed in on AIN4, and red chroma (Pr) is fed in on AIN2.

ADV7282 Datasheet(PDF) 17 Page - Analog Devices

ADV7282 Datasheet(HTML) 17 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

Datasheet Download

Link URL