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參數資料
| 型號： | ADV7194KST |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | Professional Extended-10⑩ Video Encoder with 54 MHz Oversampling |
| 中文描述： | COLOR SIGNAL ENCODER, PQFP80 |
| 封裝： | LQFP-80 |
| 文件頁數： | 48/69頁 |
| 文件大小： | 647K |
| 代理商： | ADV7194KST |
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ADV7194
–48–
REV. 0
APPENDIX 3
COPY GENERATION MANAGEMENT SYSTEM (CGMS)
The ADV7194 supports Copy Generation Management System
(CGMS) conforming to the standard. CGMS data is transmit-
ted 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
put out on ODD and EVEN
fi
elds. CGMS data can only be
transmitted when the ADV7194 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 refer-
ence pulse of the same amplitude and duration as a CGMS bit, see
Figure 96. These bits are put out 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 auto-
matically on the ADV7194 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 calcu-
lation 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 then
all 20 bits (C0
–
C19) are output directly from the CGMS regis-
ters (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 96. CGMS Waveform Diagram
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7194KSTZ | 功能描述:IC ENCODER VIDEO EXT-10 80-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉換器 系列:- 產品變化通告:Development Systems Discontinuation 26/Apr/2011 標準包裝:1 系列:- 類型:編碼器 應用:DVB-S.2 系統 電壓 - 電源，模擬:- 電壓 - 電源，數字:- 安裝類型:- 封裝/外殼:模塊 供應商設備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7194KSTZ | 制造商:Analog Devices 功能描述:TV / Video IC |
| ADV7195 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs and 10-Bit Data Input |
| ADV7195KS | 制造商:Analog Devices 功能描述:Video Encoder 3DAC 11-Bit 52-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:MULTI-FORMAT VID+PROGSCAN/HDTV ENCODERIC - Bulk |
| ADV7195KST | 制造商:AD 制造商全稱:Analog Devices 功能描述:Multiformat Progressive Scan/HDTV Encoder with Three 11-Bit DACs and 10-Bit Data Input |
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