Data Sheet
INPUT CONFIGURATION
The following are the two key steps for configuring the
ADV7180 to correctly decode the input video:
1.
Use INSEL[3:0] to configure the routing and format decoding
(CVBS, Y/C, or YPrPb). For the 64-lead and 48-lead LQFP,
see Table 13. For the 40-lead and 32-lead LFCSP, see Table 14.
If the input requirements are not met using the INSEL[3:0]
options, the analog input muxing section must be configured
manually to correctly route the video from the analog
input pins to the ADC. The standard definition processor
block, which decodes the digital data, should be configured
to process the CVBS, Y/C, or YPrPb format. This is performed
by INSEL[3:0] selection.
CONNECT ANALOG VIDEO
SIGNALS TO ADV7180.
ADV7180
Table 13. 64-Lead and 48-Lead LQFP INSEL[3:0]
INSEL[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
Video Format
Composite
Composite
Composite
Composite
Composite
Composite
Y/C (S-Video)
Y/C (S-Video)
Y/C (S-Video)
YPrPb
Analog Input
CVBS input on A
IN
1
CVBS input on A
IN
2
CVBS input on A
IN
3
CVBS input on A
IN
4
CVBS input on A
IN
5
CVBS input on A
IN
6
Y input on A
IN
1
C input on A
IN
4
Y input on A
IN
2
C input on A
IN
5
Y input on A
IN
3
C input on A
IN
6
Y input on A
IN
1
Pb input on A
IN
4
Pr input on A
IN
5
Y input on A
IN
2
Pr input on A
IN
6
Pb input on A
IN
3
Reserved
2.
SET INSEL[3:0] TO CONFIGURE
VIDEO FORMAT. USE PREDEFINED
FORMAT/ROUTING.
1010
YPrPb
NO
YES
LQFP-64
LQFP-48
LFCSP-40
LFCSP-32
CONFIGURE ADC INPUTS USING
MANUAL MUXING CONTROL BITS:
MUX_0[2:0], MUX_1[2:0], MUX_2[2:0].
SEE TABLE 15.
1011 to 1111
Reserved
Table 14. 40-Lead and 32-Lead LFCSP INSEL[3:0]
INSEL[3:0]
0000
0001 to 0010
0011
0100
0101
0110
0111 to 1000
1001
Video Format
Composite
Reserved
Composite
Composite
Reserved
Y/C (S-Video)
Reserved
YPrPb
Analog Input
CVBS input on A
IN
1
Reserved
CVBS input on A
IN
2
CVBS input on A
IN
3
Reserved
Y input on A
IN
1
C input on A
IN
2
Reserved
Y input on A
IN
1
Pr input on A
IN
3
Pb input on A
IN
2
Reserved
05700-011
REFER TO
TABLE 13
REFER TO
TABLE 14
Figure 14. Signal Routing Options
INSEL[3:0], Input Selection, Address 0x00[3:0]
The INSEL bits allow the user to select the input format. They
also configure the standard definition processor core to process
composite (CVBS), S-Video (Y/C), or component (YPrPb) format.
INSEL[3:0] has predefined analog input routing schemes that
do not require manual mux programming (see Table 13 and
types to the decoder and select them using INSEL[3:0] only.
The added benefit is that if, for example, the CVBS input is
selected, the remaining channels are powered down.
1010 to 1111
Reserved
Rev. G | Page 19 of 120
AD [ ANALOG DEVICES ]
