ADV7183BBSTZ Analog Devices Inc, ADV7183BBSTZ Datasheet - Page 51

• Manufacturer Part Number: ADV7183BBSTZ
• Description: IC,TV/VIDEO CIRCUIT,Color Decoder Circuit,CMOS,QFP,80PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Type: Video Decoderr

Specifications of ADV7183BBSTZ

• Applications: Projectors, Recorders, Security
• 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The recovered data is not available through I
into the horizontal blanking period of an ITU-R BT656-com-
patible data stream. The data format is intended to comply with
the recommendation by the International Telecommunications
Union, ITU-R BT.1364. For more information, see the ITU
website at
The format of the data packet depends on the following criteria:
•
•
•
Data packets are output if the corresponding enable bit is set
(see the GDECEL and GDECOL descriptions) and if the
decoder detects the presence of data. This means that for video
lines where no data has been decoded, no data packet is output
even if the corresponding line enable bit is set.
Each data packet starts immediately after the EAV code of the
preceding line. See
overall structure of the data packet.
Table 64. Generic Data Output Packet
Byte
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Transmission is 1× or 2×.
Data is output in 8-bit or 4-bit format (see the description
of the
Address 0x4C[0] bit).
Data is closed caption (CCAP) or Gemstar-compatible.
D[9]
0
1
1
0
!EP
!EP
!EP
!EP
!EP
!EP
!EP
!EP
!EP
!EP
!CS[8]
w ww.itu.ch. See
6 6 H
G DECAD Gemstar Decode Ancillary Data Format,
2 2 7 H
PREAMBLE FOR ANCILLARY DATA
F igure 35 and
2 2 8 H
00
D[8]
0
1
1
1
EP
EP
EP
EP
EP
EP
EP
EP
EP
EP
CS[8]
DATA IDENTIFICATION
F igure 35.
2 2 6 H
FF
0
1
1
CS[7]
D[7]
0
EF
0
0
0
0
0
0
0
0
0
T able 64, which show the
2 2 9 H
FF
DID
D[6]
0
1
1
1
2X
0
0
0
0
0
0
0
0
0
CS[6]
Figure 35. Gemstar and CCAP Embedded Data Packet (Generic)
2
C, but is inserted
SDID
SECONDARY DATA IDENTIFICATION
COUNT
D[5]
0
1
1
0
0
CS[5]
DATA
Rev. B | Page 51 of 100
USER DATA (4 OR 8 WORDS)
D[4]
0
1
1
0
0
CS[4]
Word1[7:4]
Word1[3:0]
Word2[7:4]
Word2[3:0]
Word3[7:4]
Word3[3:0]
Word4[7:4]
Word4[3:0]
USER DATA
Line[3:0]
Entries within the packet are as follows:
•
•
•
•
•
•
•
T able 64 lists the values within a generic data packet that is
2 3 0 H
output by the ADV7183B in 8-bit format.
0
1
1
CS[3]
D[3]
0
DC[1]
Fixed preamble sequence of 0x00, 0xFF, 0xFF.
Data identification word (DID). The value for the DID
marking a Gemstar or CCAP data packet is 0x140
(10-bit value).
Secondary data identification word (SDID) contains
information about the video line from which data was
retrieved, whether the Gemstar transmission was of 1× or
2× format, and whether it was retrieved from an even or
odd field.
Data count byte, giving the number of user data-words that
follow.
User data section.
Optional padding to ensure the length of the user data-
word section of a packet is a multiple of four bytes
(requirement as set in ITU-R BT.1364).
Checksum byte.
D[2]
0
1
1
0
DC[0]
CS[2]
OPTIONAL PADDING
D[1]
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
BYTES
D[0]
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
CHECK
SUM
Description
Fixed preamble
Fixed preamble
Fixed preamble
DID
SDID
Data count (DC)
User data-words
User data-words
User data-words
User data-words
User data-words
User data-words
User data-words
User data-words
Checksum
ADV7183B