參數(shù)資料
型號(hào)： ADV7194KSTZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 43/69頁(yè)
文件大?。?/td> 0K
描述： IC ENCODER VIDEO EXT-10 80-LQFP
標(biāo)準(zhǔn)包裝： 1
類型： 視頻編碼器
應(yīng)用： DVD，視頻，多媒體
電壓 - 電源，模擬： 3.3 V ~ 5 V
電壓 - 電源，數(shù)字： 3.3 V ~ 5 V
安裝類型： 表面貼裝
封裝/外殼： 80-LQFP
供應(yīng)商設(shè)備封裝： 80-LQFP（14x14）
包裝： 托盤(pán)
產(chǎn)品目錄頁(yè)面： 788 (CN2011-ZH PDF)
ADV7194
–48–
REV. A
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 elds and Line 283 of even elds.
Bits C/W05 and C/W06 control whether or not CGMS data is
put out on ODD and EVEN elds. CGMS data can only be
transmitted when the ADV7194 is congured 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 conguration 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
1
0
B1
Aspect Ratio
16:9
4:3
B2
Display Format
Letterbox
Normal
B3
Undened
WORD 0
B4, B5, B6
Identication Information About Video and
Other Signals (e.g., Audio)
WORD 1
B7, B8, B9,
Identication Signal Incidental to Word 0
B10
WORD 2
B11, B12,
Identication Signal and Information
B13, B14
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(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
ADV7195KSZ 制造商:Analog Devices 功能描述:Video Encoder 3DAC 11-Bit 52-Pin MQFP
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