ADV7188BSTZ Analog Devices Inc, ADV7188BSTZ Datasheet - Page 57

• Manufacturer Part Number: ADV7188BSTZ
• Description: IC DECODER VID MULTIFORM 80LQFP
• Manufacturer: Analog Devices Inc
• Type: Video Decoderr

Specifications of ADV7188BSTZ

• Applications: Set-Top Boxes, Video Players, Recorders
• Voltage - Supply, Analog: 3.15 V ~ 3.45 V
• Voltage - Supply, Digital: 1.65 V ~ 2 V
• Mounting Type: Surface Mount
• Package / Case: 80-LQFP
• Resolution (bits): 12bit
• Input Format: Analog
• Output Format: Digital
• Adc Sample Rate: 54MSPS
• No. Of Input Channels: 12
• Supply Voltage Range: 3V To 3.6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

•
•
Table 71. Ancillary Data in Nibble Output Format
Byte
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
.
.
.
n − 3
n − 2
n − 1
The checksum value of B8 to B0 is equal to the nine LSBs
of the sum of the nine LSBs of the DID, SDID, and dc, as
well as all UDWs in the packet. Prior to the start of the
checksum count cycle, all checksum and carry bits are
preset to 0. Any carry resulting from the checksum count
cycle is ignored.
EP . The MSB, B9, is the inverse of EP. This ensures that
restricted Codes 0x00 and 0xFF do not occur.
Line_number [9:0]. The number of the line that immediately
precedes the ancillary data packet. This number is as per the
B9
0
1
1
EP
EP
EP
EP
EP
EP
EP
EP
EP
EP
EP
EP
.
.
.
1
1
B8
B8
0
1
1
EP
EP
EP
EP
EP
EP
EP
EP
EP
EP
EP
EP
.
.
.
0
0
B7
0
1
1
0
0
padding [1:0]
0
Even_Field
0
0
0
0
0
0
.
.
.
0
0
B6
0
1
1
DC [4:0]
Line_number [9:5]
Line_number [4:0]
0
0
0
0
0
0
.
.
.
0
0
Checksum
I2C_SDID7_2 [5:0]
B5
0
1
1
0
.
.
.
0
0
Rev. A | Page 57 of 112
I2C_DID6_2 [4:0]
VBI_DATA_STD [3:0]
VBI_WORD_1 [7:4]
VBI_WORD_1 [3:0]
VBI_WORD_2 [7:4]
VBI_WORD_2 [3:0]
VBI_WORD_3 [7:4]
B4
0
1
1
0
.
.
.
0
0
B3
0
1
1
VDP_TTXT_TYPE
[1:0]
.
.
.
0
0
•
numbering system of ITU-R BT.470, ranging from 1 to 625
in a 625-line system and from 1 to 263 in a 525-line system.
Note that the line on which the packet is output differs from
the line on which the VBI data was sliced due to the vertical
delay through the comb filters.
Data Count. The data count specifies the number of UDWs
in the ancillary stream for the standard. The total number
of user data-words is four times the data count. Padding
words can be introduced so that the total number of UDWs
is divisible by 4.
B2
0
1
1
.
.
.
0
0
B1
0
1
1
0
0
0
0
0
0
0
0
0
.
.
.
0
0
0
0
0
0
B0
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
.
.
.
0
0
0
Description
Ancillary data preamble.
DID (data identification
word).
SDID (secondary data
identification word).
Data count.
ID0 (User Data-Word 1).
ID1 (User Data-Word 2).
ID2 (User Data-Word 3).
ID3 (User Data-Word 4).
User Data-Word 5.
User Data-Word 6.
User Data-Word 7.
User Data-Word 8.
User Data-Word 9.
Pad 0x200. These
padding words may not
be present depending
on ancillary data type.
User Data-Word XX.
CS (checksum word).
ADV7188