ADV7180BSTZ Analog Devices Inc, ADV7180BSTZ Datasheet - Page 61
![IC VIDEO DECODER SDTV 64-LQFP](/photos/6/60/66065/505-64-lqfp_sml.jpg)
ADV7180BSTZ
Manufacturer Part Number
ADV7180BSTZ
Description
IC VIDEO DECODER SDTV 64-LQFP
Manufacturer
Analog Devices Inc
Type
Video Decoderr
Datasheet
1.ADV7180BSTZ.pdf
(116 pages)
Specifications of ADV7180BSTZ
Design Resources
Low Cost Differential Video Receiver Using ADA4851 Amplifier and ADV7180 Video Decoder (CN0060) Low Cost Video Multiplexer for Video Switching Using ADA4853-2 Op Amp with Disable Function (CN0076)
Applications
Digital Cameras, Mobile Phones, Portable Video
Voltage - Supply, Analog
1.71 V ~ 1.89 V
Voltage - Supply, Digital
1.65 V ~ 2 V
Mounting Type
Surface Mount
Package / Case
64-LQFP
Resolution (bits)
10bit
Input Format
Analog
Output Format
Digital
Adc Sample Rate
57.27MSPS
Power Dissipation Pd
15µW
No. Of Input Channels
6
Supply Voltage Range
1.71V To 1.89V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
EVAL-ADV7180LQEBZ - BOARD EVALUATION ADV7180EVAL-ADV7180LFEBZ - BOARD EVAL FOR ADV7180 LFCSP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
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Manufacturer
Quantity
Price
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Manufacturer:
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Quantity:
6 240
Company:
Part Number:
ADV7180BSTZ
Manufacturer:
Analog Devices Inc
Quantity:
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Quantity:
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I
Teletext
Because teletext is a high data rate standard, the decoded bytes
are available only as ancillary data. However, a TTXT_AVL bit
has been provided in I
VDP has detected teletext. Note that the TTXT_AVL bit is a
plain status bit and does not use the protocol identified in the
I
TTXT_AVL, Teletext Detected Status, Address 0x78[7],
User Sub Map, Read Only
When TTXT_AVL is 0, teletext was not detected.
When TTXT_AVL is 1, teletext was detected.
WST Packet Decoding
For WST only, the VDP decodes the magazine and row address
of teletext packets and further decodes the packet’s 8 × 4
hamming coded words. This feature can be disabled using the
WST_PKT_DECODE_DISABLE bit (Bit 3, Register 0x60, user
sub map). This feature is valid for WST only.
Table 80. WST Packet Description
Packet
Header Packet (X/00)
Text Packets (X/01 to X/25)
8/30 (Format 1) Packet
Design Code = 0000 or 0001
UTC
8/30 (Format 2) Packet
Design Code = 0010 or 0011
PDC
X/26, X/27, X/28, X/29, X/30, X/31
1
2
2
For X/26, X/28, and X/29, further decoding needs 24 × 18 hamming decoding. Not supported at present.
C Interface section.
C READBACK REGISTERS
2
C so that the user can check whether the
1
Byte
1
2
3
4
5
11
1
2
3
1
2
3
4
11
24
1
2
3
4
11
24
1
2
3
4
st
nd
rd
th
th
st
nd
rd
st
nd
rd
th
st
nd
rd
th
st
nd
rd
th
th
th
th
th
th
to 10
to 42
to 10
to 10
to 42
to 42
to 23
to 42
to 23
to 42
th
nd
th
th
nd
nd
rd
nd
rd
nd
Rev. F | Page 61 of 116
WST_PKT_DECODE_DISABLE, Disable Hamming
Decoding of Bytes in WST, Address 0x60[3], User Sub Map
Setting WST_PKT_DECODE_DISABLE to 0 enables hamming
decoding of WST packets.
Setting WST_PKT_DECODE_DISABLE to 1 (default) disables
hamming decoding of WST packets.
For hamming-coded bytes, the dehammed nibbles are output
along with some error information from the hamming decoder
as follows:
•
•
Table 79. Error Bits in the Dehammed Output Byte
E[1:0]
00
01
10
11
Table 80 describes the WST packets that are decoded.
Description
Magazine number—Dehammed Byte 4
Row number—Dehammed Byte 5
Page number—Dehammed Byte 6
Page number—Dehammed Byte 7
Control bytes—Dehammed Byte 8 to Byte 13
Raw data bytes
Magazine number—Dehammed Byte 4
Row number—Dehammed Byte 5
Raw data bytes
Magazine number—Dehammed Byte 4
Row number—Dehammed Byte 5
Design code—Dehammed Byte 6
Dehammed initial teletext page, Byte 7 to Byte 12
UTC bytes—Dehammed Byte 13 to Byte 25
Raw status bytes
Magazine number—Dehammed Byte 4
Row number—Dehammed Byte 5
Design code—Dehammed Byte 6
Dehammed initial teletext page, Byte 7 to Byte 12
PDC bytes—Dehammed Byte 13 to Byte 25
Raw status bytes
Magazine number—Dehammed Byte 4
Row number—Dehammed Byte 5
Design code—Dehammed Byte 6
Raw data bytes
Input hamming coded byte: {D3, P3, D2, P2, D1, P1, D0, P0}
(bits in decoded order)
Output dehammed byte: {E1, E0, 0, 0, D3', D2', D1', D0'}
(Di' – corrected bits, Ei error information).
Error Information
No errors detected
Error in P4
Double error
Single error found and corrected
Output Data Bits
in Nibble
Okay
Okay
Bad
Okay
ADV7180