YSX530GA 5032 2P 請點(diǎn)擊您需要的參數(shù)一起加到購物車,找不到您需要的請聯(lián)系客服 標(biāo)準(zhǔn)頻率 負(fù)載電容 頻率偏差 點(diǎn)擊購買 8MHZ 20PF 20PPM rel="nofollow" Buy 11.0592MHZ 20PF 20PPM rel="nofollow" Buy 12MHZ 20PF 20PPM rel="nofollow" Buy 14.7456MHZ 20PF 20PPM rel="nofollow" Buy 14.31818MHZ 20PF 20PPM rel="nofollow" Buy 18.432MHZ 20PF 20PPM rel="nofollow" Buy 22.1184MHZ 18PF 20PPM rel="nofollow" Buy 24.576MHZ 20PF 20PPM rel="nofollow" Buy 24MHZ 12PF 20PPM rel="nofollow" Buy 24MHZ 20PF 20PPM rel="nofollow" Buy 25MHZ 20PF 20PPM rel="nofollow" Buy 27MHZ 12PF 20PPM rel="nofollow" Buy 28.6363MHZ 20PF 20PPM rel="nofollow" Buy 30MHZ 20PF 20PPM rel="nofollow" Buy 32MHZ 20PF 20PPM rel="nofollow" Buy 如您需要購買同類別的其他系列產(chǎn)品，請點(diǎn)擊以下鏈接 產(chǎn)品型號 產(chǎn)品規(guī)格 點(diǎn)擊購買 HC-49US 11.5x4.5x3.68mm rel="nofollow" Buy HC-49SMD 11.4x4.8x3.8mm rel="nofollow" Buy HC-49UM 11.05x4.65x13.46mm rel="nofollow" Buy YSX321SL 3225 4P rel="nofollow" Buy YSX530GA 5032 2P rel="nofollow" Buy YSX531SL 5032 4P rel="nofollow" Buy YT-26 2060 2P rel="nofollow" Buy YT-38 3080 2P rel="nofollow" Buy R315 D11,F11,TO39 rel="nofollow" Buy R433 D11,F11,TO39 rel="nofollow" Buy 振蕩電路不匹配導(dǎo)致晶振不起振的原因及解決方法 影響晶振的三個(gè)因素：頻率誤差 負(fù)性阻抗 激勵(lì)電平 頻率誤差 頻率若誤差太大會導(dǎo)致實(shí)際頻率偏移標(biāo)稱頻率，引起晶振不起振的現(xiàn)象，解決方法是替換或選擇合適PPM值的產(chǎn)品。 負(fù)性阻抗 負(fù)性阻抗若過大或太小都會導(dǎo)致晶振不起振。解決方法若負(fù)性阻抗過大，可以將晶振的外接電容Cd或Cg的值調(diào)大來降低負(fù)性阻抗，若負(fù)性阻抗過小，可以將晶振外接電容Cd或Cg的值調(diào)小增大負(fù)性阻抗。通常負(fù)性阻抗值不少于晶振的標(biāo)稱阻抗3-5倍。 激勵(lì)電平 激勵(lì)電平的大小也將會引起晶振不起振。解決方法通過調(diào)整電路中的Rd的大小來調(diào)節(jié)振蕩電路對晶振輸出的激勵(lì)電平。通常激勵(lì)電平越小越好，處理功耗低之外，還跟振蕩電路的穩(wěn)定性和晶振的壽命相關(guān)。