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如何通過振蕩頻率評(píng)估石英晶體單元和振蕩電路匹配性X1G0002310272

返回列表 來源：金洛鑫 瀏覽：- 發(fā)布日期：2023-07-19 17:06:09【大 中 小】
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為了獲得穩(wěn)定的振蕩，通常情況下石英晶體單元與振蕩電路的匹配十分重要。若電路結(jié)構(gòu)與晶體單元的匹配中 存在問題，就會(huì)產(chǎn)生頻率不夠穩(wěn)定、停止起振或振蕩不穩(wěn)定等問題。石英晶體單元與微機(jī)一起使用時(shí)，需要評(píng)估振蕩電路。確認(rèn)石英晶體單元與振蕩電路的匹配之際，對(duì)振蕩頻率（頻率匹配）進(jìn)行評(píng)估是不可缺少的。本次將說明確認(rèn)石英晶體單元和振蕩電路匹配性的評(píng)估工作。 

【1】 評(píng)估振蕩頻率（頻率匹配）之前的準(zhǔn)備 

一般，石英晶體生產(chǎn)商基于電路設(shè)計(jì)方所提出的石英晶體單元振蕩頻率（FL）、負(fù)載電容（CL值）和振蕩頻 率可容誤差（Δf）的三項(xiàng)數(shù)據(jù)，根據(jù)負(fù)載電容（CL值）使晶體單元起振，并調(diào)整振蕩頻率和可容誤差。

 需要注意的是，事先指定的負(fù)載電容（CL 值）中沒有考慮實(shí)際的基板中因各種因素而產(chǎn)生的電容（雜散電 容）。雜散電容是造成振蕩頻率精度下降的因素之一，所以應(yīng)當(dāng)考慮到其影響，或者讓石英晶體生產(chǎn)商更改石英 晶體單元的振蕩頻率，或者由電路設(shè)計(jì)方重新調(diào)整雜散電容。這是振蕩頻率匹配工作的大致框架。

 在實(shí)際評(píng)估匹配之前，請(qǐng)確認(rèn)評(píng)估用石英晶體單元的以下三項(xiàng)參數(shù)：

 1.標(biāo)準(zhǔn)負(fù)載電容值 

負(fù)載電容是在振蕩電路中從石英晶體單元的兩端來看振蕩電路時(shí)的電容。

 原則是電路設(shè)計(jì)方所指定的數(shù)值。

 2.標(biāo)準(zhǔn)負(fù)載電容的石英晶體單元振蕩頻率（FL） 

振蕩頻率（FL）指以標(biāo)準(zhǔn)負(fù)載電容的振蕩電路驅(qū)動(dòng)石英晶體單元時(shí)的振蕩頻率。 

使用室溫條件下的數(shù)據(jù)，不考慮雜散電容等因素。

 3.石英晶體單元的等效電路常數(shù) 

指不考慮等效串聯(lián)阻抗（R1）、等效串聯(lián)電容（C1）、等效串聯(lián)電感（L1）、等效并聯(lián)電容（C0）和負(fù)載電容 的石英晶體單元自身的振蕩頻率（Fr）等常數(shù)。 

測(cè)試石英晶體單元等效電路常數(shù)時(shí)通常使用電感測(cè)試器或網(wǎng)絡(luò)分析儀。使用網(wǎng)絡(luò)分析儀測(cè)試石英晶體單元 后得出等效電路定數(shù)的方法最為理想。但是，由于設(shè)備不全等原因而不能由電路設(shè)計(jì)方進(jìn)行石英晶體單元 的測(cè)試時(shí)，建議電路設(shè)計(jì)方向所購買的晶體單元生產(chǎn)商提出測(cè)試要求。 

【2】 振蕩頻率（頻率匹配）的評(píng)估 

這里開始進(jìn)入實(shí)際評(píng)估工作。 

首先確認(rèn)石英晶體單元（評(píng)估用晶體單元）和振蕩電路一起安裝在基板的狀態(tài)下的振蕩頻率。 

這被稱為“確認(rèn)頻率匹配狀況”。掌握安裝在基板上時(shí)的振蕩頻率和標(biāo)準(zhǔn)負(fù)載電容時(shí)的振蕩頻率之差，就能夠確 認(rèn)基板的實(shí)際電容（電路側(cè)電容）與事先指定的標(biāo)準(zhǔn)電容之間所產(chǎn)生的偏差。這里所指的基板電容包括從石英晶體單元看振蕩電路時(shí)的電容（負(fù)載電容），也包括起因于基板導(dǎo)電圖案等的雜散電容。  

 其次準(zhǔn)備評(píng)估石英晶體單元和振蕩電路的匹配所需測(cè)試儀器。

 評(píng)估所需基本測(cè)試儀器有直流電源、頻率計(jì)、示波器、FET 探針和電流探針等。圖 1 顯示測(cè)試儀器基本組成例。 

1

圖 1：評(píng)估頻率匹配所需測(cè)試儀器基本組成 

2

圖 2：把 FET 探針放在石英晶體單元的 HOT 端子上確認(rèn)振蕩波形 

首先把 FET 探針放在石英晶體單元的 HOT 端子上（圖 2），示波器中顯示波形、頻率計(jì)顯示頻率。 例如，不考慮負(fù)載電容的石英晶體單元的振蕩頻率（Fr）為 12MHz 時(shí)，若其標(biāo)準(zhǔn)負(fù)載電容時(shí)的振蕩頻率（FL） 為 12.000034MHz，假設(shè)將該石英晶體單元安裝在基板上后使用 FET 探針實(shí)際測(cè)試得出的振蕩頻率（FR）為 12.000219MHz，就可以得出兩者（在基板上實(shí)裝石英晶體單元后的振蕩頻率（FR）與標(biāo)準(zhǔn)負(fù)載電容時(shí)石英晶體單元的振蕩頻率）之間的差為+185Hz，出現(xiàn)了+15.4ppm 的差異。

 這個(gè)差越接近零，頻率精度越高。 

使上述 FR和 FL的差接近零的方法有兩種。 

第一種方法是從石英晶振元件生產(chǎn)商處購買振蕩頻率（中心頻率）比現(xiàn)在偏移+15.4ppm 的石英晶體單元。另一種方 法是對(duì)振蕩電路的負(fù)載電容進(jìn)行微調(diào)整，以此得到相應(yīng)的振蕩頻率。

在下一項(xiàng)中將介紹對(duì)負(fù)載電容進(jìn)行微調(diào)整的匹配方法。 

【3】 對(duì)負(fù)載電容進(jìn)行微調(diào)整來匹配頻率的方法 

計(jì)算負(fù)載電容時(shí)需要前述的數(shù)據(jù)。 

·石英晶體單元等效電路常數(shù)（Fr、R1、C1、L1、C0） 

·實(shí)裝在基板后的振蕩頻率（FR） 

根據(jù)這些數(shù)據(jù)使用以下算式計(jì)算負(fù)載電容（CL）。 

具體計(jì)算舉例如下：

 假設(shè)石英晶體單元的額定頻率為 12MHz，振蕩電路的負(fù)載電容（CL）為 7.8pF。

 這里的額定頻率指使用規(guī)定負(fù)載電容的振蕩電路的條件下的振蕩頻率（FL）。

4

 假定用網(wǎng)絡(luò)分析儀對(duì)該石英晶體單元進(jìn)行測(cè)試后得到了下列各常數(shù)：

 FR=12.000219 MHz

 Fr＝11.998398 MHz 

 R1＝33.7 ohm 

 L1＝70.519 mH 

 C1=2.495 fF 

 C0=1.11 pF 

這里重申 Fr 是石英晶體單元自身的振蕩頻率。把這些常數(shù)代入算式（1）就可以求出 CL=7.11pF。從求出的值可以得出與先前所指定的振蕩電路負(fù)載電容（CL）等于 7.8pF 之間的差為 0.69pF。只要把差調(diào)整到零， 事先所指定的振蕩電路負(fù)載電容就與在印制基板上實(shí)裝石英晶體單元時(shí)的電容相等。

 因此，理論上頻率公差也變?yōu)榱?，便可得到事先所指定的振蕩頻率。

 實(shí)際調(diào)整振蕩電路的負(fù)載電容時(shí)，將變更圖 3 的 Cg和 Cd，以符合事先指定的標(biāo)準(zhǔn)電容。這時(shí)，Cg和 Cd的大致數(shù) 值可以使用下列算式（2）計(jì)算得出。

5 

這里的 Ci 表示振蕩電路的實(shí)際負(fù)載電容（CL），Cs 則表示印制基板的導(dǎo)線圖案和部品的寄生電容等。Ci 只要等于 事先指定的標(biāo)準(zhǔn)電容 CL（晶體單元單體電容 CL）即可，所以可以使用下列算式（3）和算式（4）算出。

6

 Cg和 Cd是從規(guī)定的晶體單元單體負(fù)載電容減去 Cs 后的數(shù)值。計(jì)算得出的只是大致數(shù)值。實(shí)際調(diào)整 Cg和 Cd時(shí)建 議邊確認(rèn)振蕩頻率邊進(jìn)行頻率匹配。 

如果振蕩電路的 Cg 和 Cd 難以變更，可以通過調(diào)整晶體單元的負(fù)載電容進(jìn)行頻率匹配。這種情況下可以讓石英晶體單元生產(chǎn)商把晶體單元電容調(diào)整為電路電容后購買，再對(duì)其進(jìn)行匹配評(píng)估確認(rèn)結(jié)果。但需要注意的是，電路 的負(fù)載電容與振蕩頻率變化量成反比。因此，當(dāng)振蕩電路的負(fù)載電容較小時(shí)，容易受到振蕩電路微小的特性變化 的影響，導(dǎo)致頻率穩(wěn)定度惡化。所以，關(guān)鍵在于根據(jù)機(jī)器用途而設(shè)定適宜條件。

編碼 型號(hào) 頻率 尺寸 輸出方式 電源電壓 工作溫度
X1G0002110001 TCO-7085 10.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V 0 to 70 °C
X1G0002110002 TCO-7085 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V 0 to 70 °C
X1G0002110010 TCO-7085 27.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110011 TCO-7085 4.500000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110012 TCO-7085 4.096000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110014 TCO-7085 60.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110015 TCO-7085 12.800000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110018 TCO-7085 19.440000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110021 TCO-7085 13.560000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110022 TCO-7085 35.328000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110023 TCO-7085 62.500000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110026 TCO-7085 20.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110027 TCO-7085 1.544000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110028 TCO-7085 2.048000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110029 TCO-7085 66.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110031 TCO-7085 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -10 to 70 °C
X1G0002110033 TCO-7085 25.001400 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -10 to 70 °C
X1G0002110035 TCO-7085 50.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -10 to 70 °C
X1G0002110037 TCO-7085 10.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -20 to 70 °C
X1G0002110047 TCO-7085 15.360000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V -20 to 70 °C
X1G0002110048 TCO-7085 16.384000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110049 TCO-7085 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110050 TCO-7085 50.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110051 TCO-7085 49.965400 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110052 TCO-7085 8.192000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110053 TCO-7085 50.216300 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110054 TCO-7085 7.720000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V 0 to 70 °C
X1G0002110055 TCO-7085 12.352000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V 0 to 70 °C
X1G0002110056 TCO-7085 15.360000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V 0 to 70 °C
X1G0002110057 TCO-7085 12.624000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110061 TCO-7085 4.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V 0 to 70 °C
X1G0002110062 TCO-7085 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -20 to 70 °C
X1G0002110063 TCO-7085 26.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -20 to 70 °C
X1G0002110066 TCO-7085 49.152000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110067 TCO-7085 37.056000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110070 TCO-7085 27.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -10 to 70 °C
X1G0002110073 TCO-7085 5.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V 0 to 70 °C
X1G0002110076 TCO-7085 2.048000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -10 to 70 °C
X1G0002110077 TCO-7085 20.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -10 to 70 °C
X1G0002110081 TCO-7085 22.579200 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110082 TCO-7085 25.576000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110084 TCO-7085 14.318000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -10 to 70 °C
X1G0002110085 TCO-7085 17.734000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -10 to 70 °C
X1G0002110086 TCO-7085 12.288000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -10 to 70 °C
X1G0002110088 TCO-7085 24.576000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110090 TCO-7085 78.125000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -10 to 70 °C
X1G0002110092 TCO-7085 50.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -20 to 70 °C
X1G0002110095 TCO-7085 54.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -20 to 70 °C
X1G0002110096 TCO-7085 1.843200 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -20 to 70 °C
X1G0002110097 TCO-7085 24.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -20 to 70 °C
X1G0002110098 TCO-7085 12.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -20 to 70 °C
X1G0002110099 TCO-7085 20.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V -20 to 70 °C
X1G0002110100 TCO-7085 8.192000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V -20 to 70 °C
X1G0002110101 TCO-7085 12.288000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110102 TCO-7085 75.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110103 TCO-7085 78.125000 MHz 7.00 x 5.00 x 1.80 mm CMOS 3.135 to 3.465 V 0 to 70 °C
X1G0002110104 TCO-7085 2.457600 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V -20 to 70 °C
X1G0002110105 TCO-7085 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.750 to 5.250 V -20 to 70 °C
X1G0002210006 TCO-7086 13.560000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002210009 TCO-7086 9.600000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210010 TCO-7086 10.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210011 TCO-7086 12.288000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210012 TCO-7086 2.048000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210013 TCO-7086 4.096000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210015 TCO-7086 10.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210016 TCO-7086 12.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210018 TCO-7086 14.745600 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210019 TCO-7086 15.360000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210023 TCO-7086 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210025 TCO-7086 32.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210026 TCO-7086 33.330000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210027 TCO-7086 33.333000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210029 TCO-7086 48.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210030 TCO-7086 50.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210035 TCO-7086 66.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210037 TCO-7086 66.660000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210038 TCO-7086 66.666700 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210041 TCO-7086 33.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210042 TCO-7086 75.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210044 TCO-7086 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210045 TCO-7086 27.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210047 TCO-7086 50.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210050 TCO-7086 80.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210053 TCO-7086 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -20 to 70 °C
X1G0002210055 TCO-7086 50.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -20 to 70 °C
X1G0002210058 TCO-7086 2.048000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210059 TCO-7086 3.072000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210060 TCO-7086 10.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210062 TCO-7086 18.528000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210063 TCO-7086 24.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210064 TCO-7086 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210065 TCO-7086 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210067 TCO-7086 38.383000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210068 TCO-7086 41.666600 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210070 TCO-7086 50.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210074 TCO-7086 66.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210075 TCO-7086 66.670000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210083 TCO-7086 33.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210086 TCO-7086 12.800000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210101 TCO-7086 20.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210105 TCO-7086 37.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210106 TCO-7086 30.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210108 TCO-7086 22.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210117 TCO-7086 8.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210120 TCO-7086 8.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210121 TCO-7086 15.360000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210122 TCO-7086 16.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210132 TCO-7086 16.384000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210134 TCO-7086 15.360000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002210135 TCO-7086 30.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210137 TCO-7086 19.200000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210151 TCO-7086 7.680000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002210152 TCO-7086 32.768000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210153 TCO-7086 24.576000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002210154 TCO-7086 55.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210156 TCO-7086 24.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002210157 TCO-7086 19.440000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210158 TCO-7086 20.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210159 TCO-7086 48.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210161 TCO-7086 74.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210163 TCO-7086 40.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210164 TCO-7086 16.384000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210165 TCO-7086 75.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -20 to 70 °C
X1G0002210166 TCO-7086 37.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210167 TCO-7086 24.704000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210168 TCO-7086 9.830400 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210169 TCO-7086 55.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210170 TCO-7086 66.666700 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210171 TCO-7086 66.667000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210172 TCO-7086 33.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210173 TCO-7086 80.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210174 TCO-7086 14.745600 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002210177 TCO-7086 4.096000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210179 TCO-7086 65.536000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210180 TCO-7086 16.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -20 to 70 °C
X1G0002210182 TCO-7086 40.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210186 TCO-7086 75.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210187 TCO-7086 18.432000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210188 TCO-7086 12.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210189 TCO-7086 2.176000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210190 TCO-7086 48.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210194 TCO-7086 78.364320 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210195 TCO-7086 40.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210196 TCO-7086 60.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210197 TCO-7086 33.333000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210200 TCO-7086 1.843200 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210201 TCO-7086 24.576000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210204 TCO-7086 69.877600 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210205 TCO-7086 32.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -10 to 70 °C
X1G0002210208 TCO-7086 54.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210209 TCO-7086 80.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -20 to 70 °C
X1G0002210210 TCO-7086 42.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210212 TCO-7086 78.643200 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210213 TCO-7086 4.096000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210216 TCO-7086 48.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210217 TCO-7086 62.500000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210218 TCO-7086 4.915200 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210220 TCO-7086 61.440000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210221 TCO-7086 64.800000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210222 TCO-7086 18.432000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210223 TCO-7086 7.372800 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210224 TCO-7086 13.750000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210225 TCO-7086 43.400000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210226 TCO-7086 32.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210227 TCO-7086 16.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210228 TCO-7086 13.560000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210229 TCO-7086 7.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002210230 TCO-7086 77.760000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210231 TCO-7086 70.656000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210232 TCO-7086 60.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210233 TCO-7086 74.250000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210235 TCO-7086 66.660000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210236 TCO-7086 18.432000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210237 TCO-7086 16.777216 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210238 TCO-7086 4.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210239 TCO-7086 48.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002210240 TCO-7086 19.660800 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -20 to 70 °C
X1G0002210241 TCO-7086 20.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -20 to 70 °C
X1G0002210242 TCO-7086 9.830400 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -20 to 70 °C
X1G0002210243 TCO-7086 60.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -20 to 70 °C
X1G0002210244 TCO-7086 18.432000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -20 to 70 °C
X1G0002210245 TCO-7086 10.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -20 to 70 °C
X1G0002210246 TCO-7086 14.745600 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210247 TCO-7086 32.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -20 to 70 °C
X1G0002210248 TCO-7086 35.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -20 to 70 °C
X1G0002210249 TCO-7086 7.372800 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -20 to 70 °C
X1G0002210250 TCO-7086 33.330000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -40 to 85 °C
X1G0002210251 TCO-7086 24.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210252 TCO-7086 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -20 to 70 °C
X1G0002210253 TCO-7086 24.576000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -20 to 70 °C
X1G0002210255 TCO-7086 53.125000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210256 TCO-7086 64.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210257 TCO-7086 1.843200 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002210258 TCO-7086 14.745600 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210259 TCO-7086 19.440000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -20 to 70 °C
X1G0002210260 TCO-7086 25.175000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V -10 to 70 °C
X1G0002210261 TCO-7086 6.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002211001 TCO-7086 50.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002310001 TCO-7087 4.915200 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002310002 TCO-7087 6.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002310003 TCO-7087 8.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002310004 TCO-7087 10.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002310005 TCO-7087 18.432000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V 0 to 70 °C
X1G0002310016 TCO-7087 48.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -10 to 70 °C
X1G0002310018 TCO-7087 11.059200 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002310020 TCO-7087 20.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002310021 TCO-7087 24.576000 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002310022 TCO-7087 1.843200 MHz 7.00 x 5.00 x 1.80 mm CMOS 4.500 to 5.500 V -40 to 85 °C
X1G0002310029 TCO-7087 10.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002310033 TCO-7087 14.745600 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002310034 TCO-7087 16.384000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002310035 TCO-7087 18.432000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002310036 TCO-7087 20.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C
X1G0002310037 TCO-7087 25.000000 MHz 7.00 x 5.00 x 1.80 mm CMOS 2.970 to 3.630 V 0 to 70 °C