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參數資料
| 型號： | ADV7179KCP-REEL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | Chip Scale PAL/NTSC Video Encoder with Advanced Power Management |
| 中文描述： | COLOR SIGNAL ENCODER, QCC40 |
| 封裝： | 6 X 6 MM, MO-220VJJD-2, LFCSP-40 |
| 文件頁數： | 42/52頁 |
| 文件大小： | 488K |
| 代理商： | ADV7179KCP-REEL |
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ADV7174/ADV7179
APPENDIX 3—COPY GENERATION MANAGEMENT SYSTEM (CGMS)
The ADV7174/ADV7179 supports the CGMS, conforming to
the standard. CGMS data is transmitted on Line 20 of the odd
fields and on Line 283 of the even fields. Bits C/W05 and
C/W06 control whether or not CGMS data is output on odd
and even fields. CGMS data can only be transmitted when the
ADV7174/ ADV7179 is configured 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 57).
The bits are output from the configuration 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,
Rev. A | Page 42 of 52
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
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 ADV7174/ADV7179 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 directly
output from the CGMS registers (no CRC is calculated; it must
be calculated by the user).
FUNCTION OF CGMS BITS
Word 0 –6 Bits
Word 1 –4 Bits
Word 2 –4 Bits
CRC –6 Bits CRC Polynomial = X
6
+ X + 1 (Preset to 111111)
Table 21. Bit 1–Bit 14
Word
Bit
Word 0
B1
B2
B3
B4, B5, B6
Word 1
B7, B8, B9, B10
Word 2
B11, B12, B13, B14
Function
Aspect Ratio
Display Format
Undefined
Identification information about video and other signals, for example, audio
Identification signal incidental to Word 0
Identification signal and information incidental to Word 0
1
16:9
Letterbox
0
4:3
Normal
CRC SEQUENCE
11.2
μ
s
2.235
μ
s ± 20ns
49.1
μ
s ± 0.5
μ
s
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
0
Figure 57. CGMS Waveform Diagram
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7179KCP-REEL1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Chip Scale PAL/NTSC Video Encoder with Advanced Power Management |
| ADV7179KCPZ | 功能描述:IC ENCODER VID NTSC/PAL 40LFCSP 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 |
| ADV7179KCPZ2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Chip Scale PAL/NTSC Video Encoder with Advanced Power Management |
| ADV7179KCPZ-REEL | 功能描述:IC ENCODER VID NTSC/PAL 40LFCSP 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 |
| ADV7179KCPZ-REEL2 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Chip Scale PAL/NTSC Video Encoder with Advanced Power Management |
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