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| 型號： | ADV7171KSUZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 36/64頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC VIDEO ENC NTSC 44TQFP |
| 產(chǎn)品培訓(xùn)模塊： | Interfacing AV Converters to Blackfin Processors |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 視頻編碼器 |
| 應(yīng)用： | 機頂盒，視頻播放器 |
| 電壓 - 電源，模擬： | 4.75 V ~ 5.25 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-TQFP |
| 供應(yīng)商設(shè)備封裝： | 44-TQFP（10x10） |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 786 (CN2011-ZH PDF) |
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ADV7170/ADV7171
Rev. C | Page 41 of 64
APPENDIX 3—COPY GENERATION MANAGEMENT SYSTEM (CGMS)
The ADV7170/ADV7171 support copy generation management systems (CGMS) conforming to the standard. CGMS data is transmitted
on Line 20 of the odd fields and Line 283 of even fields. Bit C/W05 and Bit C/W06 control whether or not CGMS data is output on odd
and even fields. CGMS data can only be transmitted when the ADV7170/ADV7171 are configured in NTSC mode.
The CGMS data is 20 bits long; the function of each of these bits is 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, 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 Level 1, the last six bits, C19 to C14, which comprise the 6-bit CRC check sequence, are calculated
automatically on the ADV7170/ADV7171 based on the lower 14 bits (C0 to 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
X6 + X + 1 with a preset value of 111111. If C/W04 is set to a Logic Level 0, all 20 bits (C0 to 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
– 6 Bits
CRC
– 6 Bits
CRC Polynomial = X6 + X + 1 (Preset to 111111)
Word 0
1
0
B1
Aspect Ratio
16:94:3
B2
Display Format
Letterbox
Normal
B3
Undefined
Word 0
B4, B5, B6
Identification information about video and other signals (for example, 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
CRC SEQUENCE
49.1
μs ± 0.5μs
11.2
μs
2.235
μs ± 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
00221-057
Figure 57. CGMS Waveform Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADV7171KSUZ-REEL | 功能描述:IC DAC VIDEO ENC NTSC 44TQFP TR 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 |
| ADV7171KSZ | 功能描述:IC DAC VIDEO ENC NTSC 44-MQFP 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 |
| ADV7171KSZ | 制造商:Analog Devices 功能描述:IC, VIDEO ENCODER, 10BIT, MQFP-44 |
| ADV7171KSZ-REEL | 功能描述:IC DAC VIDEO ENC NTSC 44-MQFP 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 |
| ADV7171SU | 制造商:AD 制造商全稱:Analog Devices 功能描述:Digital PAL/NTSC Video Encoder with 10-Bit SSAF⑩ and Advanced Power Management |
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