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NX1210AC-50.000MHz-STD-CTR-1內(nèi)置熱敏電阻晶體單元的研制

We are pleased to inform you that Nihon Dempa Kogyo Co., Ltd. has developed a crystal unit(76.8MHz) with a built-in thermistor for NX1210AC Quartzcrystal (1.2×1.0×0.55mm-size) and has startedsample shipment.

With the shift to 5G of mobile communications, the increasing frequency of clock sources used inchipsets has resulted in an increasing demand for low phase noise.

In particular, in order to accommodate carrier frequencies such as millimeter waves, it isnecessary to increase the internal multiplication number. However, increasing the multiplicationnumber increases the noise component, which may lead to reduce the reception sensitivity andcommunication efficiency due to degradation of modulation accuracy (signal phase and amplitudeshift).

NX1210AC-50.000MHz-STD-CTR-1內(nèi)置熱敏電阻晶體單元的研制 To improve phase noise by reducing the number of multiplications, it is required toincrease the frequency of the crystal resonator as the reference oscillator from 38.4MHz to76.8MHz. In order to achieve further noise reduction, it is also necessary to increase the drive level andmaintain high stable temperature characteristics in addition to high-frequency operation.

To meet these difficult demands, we have realized a compact, high-frequency products by usinghigh-quality synthetic quartz grown in-house and processing crystal blank with high precisionusing our won photolithography processing technology.

This product has the same characteristic as the NDKcrystal NX1612SD_76.8MHz, which has obtained thefirst certification for Qualcomm Technologies smartphone chipset (Qualcomm®SnapdragonTM690, 750G and 480) which is under mass production, and it is a miniaturizedproduct with a mounting area reduced to 38%.

Began supplying samples in May 2021. (NDK part number:EXS00A-CS10506)

The smartphone market for 5G is rapidly expanding, and we plan to work to ensure stablesupplies of this product while expanding sales.

We will continue to contribute to the realization of a safe, secure and comfortable society throughour quartz device and crystal application equipment businesses. NX1210AC-50.000MHz-STD-CTR-1內(nèi)置熱敏電阻晶體單元的研制

NX1210AC-50.000MHz-STD-CTR-1內(nèi)置熱敏電阻晶體單元的研制

我們很高興地通知您，Nihon Dempa Kogyo Co.，Ltd. 已為NX1210AC晶振（尺寸1.2×1.0×0.55mm）開(kāi)發(fā)了一個(gè)內(nèi)置熱敏電阻的晶體單元（76.8MHz），并已開(kāi)始樣品發(fā)貨。

隨著移動(dòng)通信向5G的轉(zhuǎn)變，芯片組中使用的時(shí)鐘源頻率的增加，導(dǎo)致了對(duì)低相位噪聲的需求不斷增加。

特別地，為了適應(yīng)毫米波等載波頻率，需要增加內(nèi)部乘法數(shù)。然而，增加乘法數(shù)會(huì)增加噪聲分量，由于調(diào)制精度（信號(hào)相位和幅度轉(zhuǎn)移）的降低，可能導(dǎo)致接收靈敏度和通信效率的降低。

為了通過(guò)減少乘法次數(shù)來(lái)提高相位噪聲，需要將作為參考諧振器的晶體諧振器的頻率從38.4MHz提高到76.8MHz。為了進(jìn)一步降噪，除高頻操作外，還需要提高驅(qū)動(dòng)水平，保持高穩(wěn)定的溫度特性。

NX1210AC-50.000MHz-STD-CTR-1內(nèi)置熱敏電阻晶體單元的研制, 為了滿足這些困難的需求，我們利用內(nèi)部種植的高品質(zhì)合成石英，利用先進(jìn)的光刻加工技術(shù)，實(shí)現(xiàn)了一種緊湊、高頻的產(chǎn)品。

該產(chǎn)品具有與NX1612SD_76.8MHz相同的特點(diǎn)，1210貼片石英晶振NX1612SD_76.8MHz首次獲得高通技術(shù)智能手機(jī)芯片組（高通®驍龍690,750G和480）認(rèn)證，正在量產(chǎn)，是一種小型化產(chǎn)品，安裝面積減少到38%。

從2021年5月開(kāi)始提供樣品。（NDK零件號(hào)： EXS00A-CS10506）

5G智能手機(jī)市場(chǎng)正在迅速擴(kuò)張，我們計(jì)劃在擴(kuò)大銷(xiāo)售的同時(shí)確保該產(chǎn)品供應(yīng)穩(wěn)定。

我們將繼續(xù)通過(guò)石英設(shè)備和水晶應(yīng)用設(shè)備業(yè)務(wù)，為實(shí)現(xiàn)一個(gè)安全、安全、舒適的社會(huì)做出貢獻(xiàn)。

NX1210AC晶振特點(diǎn)：

在電路設(shè)計(jì)中具有內(nèi)置熱敏電阻的晶體單元

與晶體單元集成以消除空間（傳統(tǒng)上，晶體單元和溫度傳感器安裝在同一塊板上）。

晶體元件和溫度傳感器（熱敏電阻）安裝在同一密閉室中，可以檢測(cè)到更接近晶體元件的溫度，從而與傳統(tǒng)的晶體單元相比，提高了頻率溫度補(bǔ)償。

超緊湊，外形低調(diào)：1.2×1.0mm，最大值為高: 0.55mm)

表面安裝晶體單元（可用于回流焊）

回流溫度曲線（可用于無(wú)鉛焊接）

應(yīng)用于：通信設(shè)備