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參數(shù)資料

AD7873

GROUNDING AND LAYOUT

For information on grounding and layout considerations for the

AD7873, refer to Application Note AN-577, Layout and

Grounding Recommendations for Touch Screen Digitizers.

Rev. D | Page 23 of 28

PCB DESIGN GUIDELINES FOR

CHIP SCALE PACKAGE

The lands on the chip scale package (CP-32), are rectangular.

The printed circuit board pad for these should be 0.1 mm

longer than the package land length and 0.05 mm wider than

the package land width. The land should be centered on the pad.

This will ensure that the solder joint size is maximized.

The bottom of the chip scale package has a central thermal pad.

The thermal pad on the printed circuit board should be at least

as large as this exposed pad. On the printed circuit board, there

should be a clearance of at least 0.25 mm between the thermal

pad and the inner edges of the pad pattern. This ensures that

shorting is avoided.

Thermal vias may be used on the printed circuit board thermal

pad to improve thermal performance of the package. If vias are

used, they should be incorporated in the thermal pad at 1.2mm

pitch grid. The via diameter should be between 0.3 mm and

0.33 mm and the via barrel should be plated with 1 oz. copper

to plug the via.

The user should connect the printed circuit board thermal pad

to GND.

相關(guān)PDF資料	PDF描述
AD7873ACP	Touch Screen Digitizer
AD7873ACPZ	Touch Screen Digitizer
AD7873ACPZ3	10-Bit, 60 MSPS ADC SE/Diff, Int/Ext Ref., program. i/p range w/Pwrdown, comp. to ADS822/4/5/6/8 28-SSOP
AD7873ARQ	10-Bit, 60 MSPS ADC SE/Diff, Int/Ext Ref., program. i/p range w/Pwrdown, comp. to ADS822/4/5/6/8 28-SSOP
AD7873ARU	Touch Screen Digitizer

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
AD7873ACP	制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER
AD7873ACP-REEL	制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER
AD7873ACP-REEL7	制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER
AD7873ACPZ	功能描述:IC ADC 12BIT TOUCHSCREEN 16LFCSP RoHS:是類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - 觸摸屏控制器系列:- 標(biāo)準(zhǔn)包裝:96 系列:- 類(lèi)型:- 觸摸面板接口:- 輸入數(shù)/鍵:- 分辨率（位）:- 評(píng)估套件:* 數(shù)據(jù)接口:- 數(shù)據(jù)速率/采樣率 (SPS，BPS):- 電壓基準(zhǔn):- 電源電壓:- 電流 - 電源:- 工作溫度:- 安裝類(lèi)型:表面貼裝封裝/外殼:16-TSSOP（0.173"，4.40mm 寬）供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR)
AD7873ACPZ3	制造商:AD 制造商全稱(chēng):Analog Devices 功能描述:Touch Screen Digitizer

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