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參數資料
型號： ADV7191KST
廠商： ANALOG DEVICES INC
元件分類： 顏色信號轉換
英文描述： Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs
中文描述： COLOR SIGNAL ENCODER, PQFP64
封裝： LQFP-64
文件頁數： 47/69頁
文件大?。?/td> 628K
代理商： ADV7191KST
ADV7190/ADV7191
–47–
REV. 0
APPENDIX 3
COPY GENERATION MANAGEMENT SYSTEM (CGMS)
The ADV7190/ADV7191 supports Copy Generation Management
System (CGMS) conforming to the standard. CGMS data is
transmitted on Line 20 of the odd
fi
elds and Line 283 of even
fi
elds. Bits C/W05 and C/W06 control whether or not CGMS
data is outputed on ODD and EVEN
fi
elds. CGMS data can
only be transmitted when the ADV7190/ADV7191 is con
fi
gured in
NTSC mode. The CGMS data is 20 bits long, the function of
each of these bits is as shown below. The CGMS data is preceded
by a reference pulse of the same amplitude and duration as a
CGMS bit, see Figure 94. These bits are outputed from the con-
fi
guration registers in the following order: C/W00 = C16, C/W01 =
C17, C/W02 = C18, C/W03 = C19, C/W10 = C8, C/W11 =
C9, C/W12 = C10, C/W13 = C11, C/W14 = C12, C/W15 =
C13, C/W16 = C14, C/W17 = C15, C/W20 = C0, C/W21 = C1,
C/W22 = C2, C/W23 = C3, C/W24 = C4, C/W25 = C5, C/W26
= C6, C/W27 = C7. If the bit C/W04 is set to a Logic 1, the last six
bits C19
–
C14 which comprise the 6-bit CRC check sequence are
calculated automatically on the ADV7190/ADV7191 based on
the lower 14 bits (C0
–
C13) of the data in the data registers and
output with the remaining 14-bits to form the complete 20-bits of
the CGMS data. The calculation of the CRC sequence is based on
the polynomial X
6
+ X + 1 with a preset value of 111111. If C/W04
is set to a Logic 0, all 20 bits (C0
–
C19) are output directly from
the CGMS registers (no CRC calculated, must be calculated
by the user).
Function of CGMS Bits
Word 0
–
6 Bits
Word 1
–
4 Bits
Word 2
–
6 Bits
CRC
–
6 Bits
CRC Polynomial = X
6
+ X + 1 (Preset to
111111)
WORD 0
B1
B2
B3
1
16:9
Letterbox
0
4:3
Normal
Aspect Ratio
Display Format
Unde
fi
ned
WORD 0
B4, B5, B6
Identi
fi
cation Information About Video and
Other Signals (e.g., Audio)
WORD 1
B7, B8, B9,
B10
Identi
fi
cation Signal Incidental to Word 0
WORD 2
B11, B12,
B13, B14
Identi
fi
cation Signal and Information
Incidental to Word 0
CRC SEQUENCE
49.1 s
0.5 s
11.2 s
2.235 s
20ns
REF
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19
100 IRE
70 IRE
0 IRE
–
40 IRE
Figure 90. CGMS Waveform Diagram
相關PDF資料
PDF描述
ADV7190 Video Encoder with Six 10-Bit DACs and Video Encoder with Six DAC Outputs
ADV7192KST Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs
ADV7192 Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs
ADV7194KST Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling
ADV7194 Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling
相關代理商/技術參數
參數描述
ADV7191KSTZ 制造商:Analog Devices 功能描述:Video Encoder 6DAC 10-Bit 64-Pin LQFP 制造商:Analog Devices 功能描述:IC VIDEO ENCODER
ADV7192 制造商:AD 制造商全稱:Analog Devices 功能描述:Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs
ADV7192KST 制造商:AD 制造商全稱:Analog Devices 功能描述:Video Encoder with Six 10-Bit DACs, 54 MHz Oversampling and Progressive Scan Inputs
ADV7194 制造商:AD 制造商全稱:Analog Devices 功能描述:Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling
ADV7194KST 制造商:Analog Devices 功能描述:Video Encoder 6DAC 10-Bit 80-Pin LQFP 制造商:Rochester Electronics LLC 功能描述:PROFESSIONAL/HDTV NTSC/PAL ENCODER I.C. - Bulk 制造商:Analog Devices 功能描述:IC VIDEO ENCODER
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