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| FM24C64-GTR资料 | |
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FM24C64-GTR PDF Download |
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File Size : 116 KB
Manufacturer:RAMTRON Description:accuracy on the transmitted signal frequency Stray capaci- tance can shift the crystals frequency out of range causing the transmitted frequency to exceed its 0 01% tolerance The frequency marked on the crystal is usually measured with a fixed shunt capacitance (CL) that is specified in the crystals data sheet This capacitance for 20 MHz crystals is typically 20 pF The capacitance between the X1 and X2 pins of the SNI of the PC board traces and the plated through holes plus any stray capacitance such as the sock- et capacitance if one is used should be estimated or mea- sured Once the total sum of these capacitances is deter- mined the value of additional external shunt capacitance required can be calculated This capacitor can be a fixed 5% tolerance component The frequency accuracy should be measured during the design phase at the transmit clock pin (TXC) for a given pc layout Figure 2 shows the crystal connection |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：FM24C64-GTR 厂 家：RAMTRON 封 装： 批 号：0742 数 量：384 说 明：Bid Price |
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运 费： 所在地： 新旧程度： |
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| 联系人：刘先生，罗小姐， |
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