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參數(shù)資料
| 型號： | AD725 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low Cost RGB to NTSC/PAL Encoder with Luma Trap Port(低成本RGB-NTSC/PAL編碼器) |
| 中文描述： | 低成本的RGB至NTSC / PAL編碼器與亮度陷阱港口（低成本RGB-NTSC/PAL編碼器） |
| 文件頁數(shù)： | 10/20頁 |
| 文件大?。?/td> | 265K |
| 代理商： | AD725 |
REV. 0
–10–
AD725
T able I. T iming Description (See Figure 18)
Symbol
Name
Description
NT SC
1
PAL
2
t
SW
Sync Width
Input valid sync width for burst
insertion (user-controlled).
Minimum sync to color delay
(user-controlled).
Delay to modulator clamp start.
Min
Max
2.8
μ
s
5.3
μ
s
Min
Max
3.3
μ
s
5.4
μ
s
t
SB
Sync to Blanking
End
Sync to Modulator
Restore
Modulator Restore
Width
Sync to RGB DC
Restore
DC Restore Width
Min
8.2
μ
s
Min
8.1
μ
s
t
SM
392 ns
298 ns
t
MW
Length of modulator offset clamp
(no chroma during this period).
Delay to input clamping start.
140 ns
113 ns
t
SR
5.4
μ
s
5.6
μ
s
t
RW
Length of input clamp (no RGB
response during this period).
Delay to start of delay line
clock reset.
Length of delay line clock reset
(no luma response during this
period), also burst gate.
Delay from sync input assertion
to sync in LUMA output.
Delay from RGB input assertion
to LUMA output response.
Delay from valid horizontal sync
start to CRMA colorburst output.
Delay from RGB input assertion
to CRMA output response.
2.5
μ
s
2.3
μ
s
t
SD
Sync to Delay Line
Reset
Delay Line Reset
Width
5.7
μ
s
5.8
μ
s
t
DW
2.5
μ
s
2.3
μ
s
t
SS
Sync Input to Luma
Sync Output
Blanking End to
LUMA Start
Sync to Colorburst
typ
310 ns
typ
265 ns
t
BY
typ
340 ns
typ
280 ns
t
SC
typ
5.8
μ
s
typ
5.9
μ
s
t
BC
Blanking End to
CRMA Start
typ
360 ns
typ
300 ns
NOT ES
1
Input clock = 14.318180 MHz, ST ND pin = logic high.
2
Input cock = 17.734475 MHz, ST ND pin = logic low.
t
SW
t
SB
t
SM
t
MW
t
SR
t
RW
t
SD
t
DW
t
SS
t
BY
t
SC
t
BC
HSYNC/VSYNC
(USER INPUTS)
RIN/GIN BIN
(USER INPUTS)
MODULATOR
RESTORE
INPUT
CLAMPS
BURST FLAG/
DELAY LINE RESET
LUMA
CRMA
Figure 18. Timing Diagram (Not to Scale)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD725AR | 制造商:Analog Devices 功能描述:RGB to NTSC and PAL Encoder 16-Pin SOIC W 制造商:Rochester Electronics LLC 功能描述:SOIC LOW COST VIDEO ENCODER - Bulk 制造商:Analog Devices 功能描述:TUBE / SOIC LOW COST VIDEO ENCODER |
| AD725AR-REEL | 制造商:Analog Devices 功能描述:RGB to NTSC and PAL Encoder 16-Pin SOIC W T/R 制造商:Rochester Electronics LLC 功能描述:SOIC LOW COST VIDEO ENCODER - Tape and Reel |
| AD725AR-REEL7 | 制造商:Analog Devices 功能描述:RGB to NTSC and PAL Encoder 16-Pin SOIC W T/R 制造商:Rochester Electronics LLC 功能描述:SOIC LOW COST VIDEO ENCODER - Tape and Reel |
| AD725ARZ | 功能描述:IC ENCODER RGB TO NTSC 16-SOIC 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 |
| AD725ARZ | 制造商:Analog Devices 功能描述:Video IC |
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