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參數(shù)資料
| 型號： | AD9985AKSTZ-140 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 其它接口 |
| 英文描述： | 110 MSPS/140 MSPS Analog Interface for Flat Panel Displays |
| 中文描述： | SPECIALTY INTERFACE CIRCUIT, PQFP80 |
| 封裝： | LEAD FREE, MS-026-BEC, PLASTIC, LQFP-80 |
| 文件頁數(shù)： | 30/32頁 |
| 文件大?。?/td> | 344K |
| 代理商： | AD9985AKSTZ-140 |
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AD9985A
OUTPUTS (BOTH DATA AND CLOCKS)
Try to minimize the trace length that the digital outputs have to
drive. Longer traces have higher capacitance, which requires
more current, which causes more internal digital noise. Shorter
traces reduce the possibility of reflections.
Rev. 0 | Page 30 of 32
Adding a series resistor of value 22 Ω to 100 Ω can suppress
reflections, reduce EMI, and reduce the current spikes inside of
the AD9985A. However, if 50 Ω traces are used on the PCB, the
data outputs should not need resistors. A 22 Ω resistor on the
DATACK output should provide good impedance matching
that reduces reflections. If series resistors are used, place them
as close as possible to the AD9985A pins (but try not to add vias
or extra length to the output trace in order to get the resistors
closer).
If possible, limit the capacitance that each of the digital outputs
drives to less than 10 pF. This can easily be accomplished by
keeping traces short and by connecting the outputs to only one
device. Loading the outputs with excessive capacitance increases
the current transients inside of the AD9985A, creating more
digital noise on its power supplies.
DIGITAL INPUTS
The digital inputs on the AD9985A were designed to work with
3.3 V signals, but are tolerant of 5.0 V signals. Therefore, no
extra components need to be added if using 5.0 V logic.
Any noise that gets onto the Hsync input trace adds jitter to the
system. Therefore, minimize the trace length and do not run
any digital or other high frequency traces near it.
VOLTAGE REFERENCE
Bypass the voltage reference with a 0.1 μF capacitor. Place it as
close as possible to the AD9985A pin. Make the ground
connection as short as possible.
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相關(guān)代理商/技術(shù)參數(shù) |
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| AD9985BST-110 | 制造商:Analog Devices 功能描述:110 MSPS/140 MSPS ANLG INTRFC FOR FLAT PNL DISPLAYS 80LQFP - Bulk |
| AD9985BSTZ-110 | 功能描述:IC INTERFACE 8BIT 110MSPS 80LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| AD9985KST-110 | 制造商:Analog Devices 功能描述:110 MSPS/140 MSPS ANLG INTRFC FOR FLAT PNL DISPLAYS 80LQFP - Bulk |
| AD9985KSTZ-110 | 功能描述:IC INTERFACE 8BIT 110MSPS 80LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 特色產(chǎn)品:NXP - I2C Interface 標(biāo)準(zhǔn)包裝:1 系列:- 應(yīng)用:2 通道 I²C 多路復(fù)用器 接口:I²C，SM 總線 電源電壓:2.3 V ~ 5.5 V 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:剪切帶 (CT) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:825 (CN2011-ZH PDF) 其它名稱:568-1854-1 |
| AD9985KSTZ-140 | 功能描述:IC INTERFACE 8BIT 140MSPS 80LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 專用 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- 應(yīng)用:PDA，便攜式音頻/視頻，智能電話 接口:I²C，2 線串口 電源電壓:1.65 V ~ 3.6 V 封裝/外殼:24-WQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) 安裝類型:表面貼裝 產(chǎn)品目錄頁面:1015 (CN2011-ZH PDF) 其它名稱:296-25223-2 |
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