參數(shù)資料
型號： ADV7189
廠商： Analog Devices, Inc.
英文描述： Multiformat SDTV Video Decoder
中文描述： 標(biāo)清多格式視頻解碼器
文件頁數(shù)： 54/104頁
文件大?。?/td> 890K
代理商： ADV7189
ADV7189
CGMS Data Registers
Rev. A | Page 54 of 104
CGMS1[7:0] (SDP), Address 0x96, [7:0], CGMS2[7:0] (SDP),
Address 0x97, [7:0], CGMS3[7:0] (SDP), Address 0x98, [7:0]
Figure 33 shows the bit correspondence between the analog
video waveform and the CGMS1/CGMS2/CGMS3 registers.
CGMS3[7:4] are undetermined and should be masked out by
software.
Closed Caption Data Registers
CCAP1[7:0] (SDP), Address 0x99, [7:0], CCAP2[7:0] (SDP),
Address 0x9A, [7:0]
Figure 34 shows the bit correspondence between the analog
video waveform and the CCAP1/CCAP2 registers.
Notes
CCAP1[7] contains the parity bit from the first word.
CCAP2[7] contains the parity bit from the second word.
Please refer to the GDECAD Gemstar Decode Ancillary
Data Format (SDP), Address 0x4C, [0] section.
0
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
1
2
3
CGMS2[7:0]
CGMS3[3:0]
CGMS1[7:0]
REF
+100 IRE
+70 IRE
0 IRE
–40 IRE
11.2
μ
s
49.1
μ
s
±
0.5
μ
s
CRC SEQUENCE
2.235
μ
s
±
20ns
Figure 33. SDP CGMS Data Extraction
Table 145. SDP CGMS Access Information
Signal Name
CGMS1[7:0]
CGMS2[7:0]
CGMS3[3:0]
Block
SDP
SDP
SDP
Register Location
CGMS 1 [7:0]
CGMS 2 [7:0]
CGMS 3 [3:0]
Address
Register Default Value
Readback Only
Readback Only
Readback Only
150d
151d
152d
96h
97h
98h
0
REFERENCE COLOR BURST
(9 CYCLES)
FREQUENCY = F
= 3.579545MHz
AMPLITUDE = 40 IRE
10.003
μ
s
1
CCAP1[7:0]
(O7 CYCLES
CCAP2[7:0]
2 3 4 5 6 7 0 1 2 3 4 5 6 7
P
A
R
I
T
Y
S
T
A
R
T
P
A
R
I
T
Y
BYTE 1
BYTE 0
33.764
μ
s
10.5
±
0.25
μ
s
12.91
μ
s
27.382
μ
s
50 IRE
40 IRE
0
Figure 34. SDP Closed Caption Data Extraction
Table 146. SDP CCAP Access Information
Signal Name
CCAP1[7:0]
CCAP2[7:0]
Block
SDP
SDP
Register Location
CCAP 1 [7:0]
CCAP 2 [7:0]
Address
Register Default Value
Readback Only
Readback Only
153d
154d
99h
9Ah
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參數(shù)描述
ADV7189B 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder
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ADV7189BBSTZ268H 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat SDTV Video Decoder
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ADV7189BKST 制造商:Analog Devices 功能描述:
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