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參數(shù)資料
| 型號： | ADV7173KSTZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 39/60頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC VIDEO NTSC 6-CH 48LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 視頻編碼器 |
| 應(yīng)用： | 多媒體 |
| 電壓 - 電源，模擬： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-LQFP |
| 供應(yīng)商設(shè)備封裝： | 48-LQFP（7x7） |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 786 (CN2011-ZH PDF) |
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REV. B
ADV7172/ADV7173
–44–
The ADV7172/ADV7173 supports Copy Generation Management System (CGMS) conforming to the standard. CGMS data is
transmitted on Line 20 of the odd fields and Line 283 of 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 ADV7172/ADV7173 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 refer-
ence pulse of the same amplitude and duration as a CGMS bit (see Figure 70). These 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, 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 ADV7172/ADV7173 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 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
1
0
B1
Aspect Ratio
16:9
4:3
B2
Display Format
Letterbox
Normal
B3
Undefined
Word 0
B4, B5, B6
Identification information about video and other signals (e.g., audio)
Word 1
B7, B8, B9, B10
Identification signal incidental to Word 0
Word 2
B11, B12, B13, B14 Identification signal and information incidental to Word 0
APPENDIX 3
COPY GENERATION MANAGEMENT SYSTEM (CGMS)
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 70. CGMS Waveform Diagram
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| ADV7173KSTZ-REEL | 功能描述:IC DAC VIDEO NTSC 6-CH 48LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉(zhuǎn)換器 系列:- 產(chǎn)品變化通告:Development Systems Discontinuation 26/Apr/2011 標(biāo)準(zhǔn)包裝:1 系列:- 類型:編碼器 應(yīng)用:DVB-S.2 系統(tǒng) 電壓 - 電源，模擬:- 電壓 - 電源，數(shù)字:- 安裝類型:- 封裝/外殼:模塊 供應(yīng)商設(shè)備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7174 | 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 |
| ADV7174BCP | 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 |
| ADV7174BCP-REEL | 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 |
| ADV7174KCP | 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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