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探讨Vectrons VT-803温度补偿晶体振荡器的完美解决方案

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扫一扫!探讨Vectrons VT-803温度补偿晶体振荡器的完美解决方案扫一扫!
 浏览：- 发布日期：2022-05-30 09:54:28【大 中 小】
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Vectrons VT-803温度补偿晶体振荡器(TCXO)是一种石英稳定、削波正弦波或CMOS输出、模拟温度补偿振荡器，采用密封的5x3.2陶瓷封装，采用2.8、3.0、3.3或5.0伏电源供电。

F61200046 12MHz ±30ppm 2-SMD, No Lead
F61200046 12MHz ±30ppm 2-SMD, No Lead
GB0400039 4MHz ±30ppm HC49/US
GB0400005 4MHz ±30ppm HC49/US
GB1200036 12MHz ±30ppm HC49/US
GB1100021 11.0592MHz ±30ppm HC49/US
GB1600032 16MHz ±30ppm HC49/US
GB0800004 8MHz ±30ppm HC49/US
GC1600058 16MHz ±30ppm HC49/US
GC1600058 16MHz ±30ppm HC49/US
GC1600058 16MHz ±30ppm HC49/US
GC2500162 25MHz ±30ppm HC49/US
GC2500162 25MHz ±30ppm HC49/US
GC2500162 25MHz ±30ppm HC49/US
GC0800002 8MHz ±30ppm HC49/US
GC0800002 8MHz ±30ppm HC49/US
GC0800002 8MHz ±30ppm HC49/US
F80800016 8MHz ±50ppm 2-SMD, No Lead
F80800016 8MHz ±50ppm 2-SMD, No Lead
F80800016 8MHz ±50ppm 2-SMD, No Lead
GC1600048 16MHz ±30ppm HC49/US
GC1600048 16MHz ±30ppm HC49/US
GC1600048 16MHz ±30ppm HC49/US
GC2500100 25MHz ±50ppm HC49/US
GC2500100 25MHz ±50ppm HC49/US
GC2500100 25MHz ±50ppm HC49/US
GC0400058 4MHz ±30ppm HC49/US
GC0400058 4MHz ±30ppm HC49/US
GC0400058 4MHz ±30ppm HC49/US
GC0800053 8MHz ±50ppm HC49/US

当需要标准无法达到的温度稳定性水平时，TCXO是必需的XO（晶体振荡器）或VCXO（压控晶体振荡器）。

GC0800053 8MHz ±50ppm HC49/US
GC0800053 8MHz ±50ppm HC49/US
GC2500081 25MHz ±30ppm HC49/US
GC2500081 25MHz ±30ppm HC49/US
GC2500081 25MHz ±30ppm HC49/US
GC2500164 25MHz ±10ppm HC49/US
GC2500164 25MHz ±10ppm HC49/US
GC2500164 25MHz ±10ppm HC49/US
GC1200050 12MHz ±50ppm HC49/US
GC1200050 12MHz ±50ppm HC49/US
GC1200050 12MHz ±50ppm HC49/US
FY2500115 25MHz ±10ppm 4-SMD, No Lead
FY2500115 25MHz ±10ppm 4-SMD, No Lead
FY2500115 25MHz ±10ppm 4-SMD, No Lead
F90800021 8MHz ±30ppm 2-SMD, No Lead
F90800021 8MHz ±30ppm 2-SMD, No Lead
F90800021 8MHz ±30ppm 2-SMD, No Lead
FL2400135Z 24MHz ±30ppm 4-SMD, No Lead
FL2400135Z 24MHz ±30ppm 4-SMD, No Lead
FL2400135Z 24MHz ±30ppm 4-SMD, No Lead
FL4800063Z 48MHz ±15ppm 4-SMD, No Lead
FL4800063Z 48MHz ±15ppm 4-SMD, No Lead
FL4800063Z 48MHz ±15ppm 4-SMD, No Lead
FL4000205Z 40MHz ±10ppm 4-SMD, No Lead
FL4000205Z 40MHz ±10ppm 4-SMD, No Lead
FL4000205Z 40MHz ±10ppm 4-SMD, No Lead
FL2000132Z 20MHz ±30ppm 4-SMD, No Lead
FL2000132Z 20MHz ±30ppm 4-SMD, No Lead
FL2000132Z 20MHz ±30ppm 4-SMD, No Lead
FL2500279Z 25MHz ±30ppm 4-SMD, No Lead
FL2500279Z 25MHz ±30ppm 4-SMD, No Lead
FL2500279Z 25MHz ±30ppm 4-SMD, No Lead
FL2500283Z 25MHz ±30ppm 4-SMD, No Lead
FL2500283Z 25MHz ±30ppm 4-SMD, No Lead
FL2500283Z 25MHz ±30ppm 4-SMD, No Lead

温度稳定性是衡量振荡器频率随温度变化的程度，有两种定义方式。一种常见的方法是使用“正/负”规范（例如：±0.28ppm与工作温度范围，以25°C为参考——温度范围通常为-40至85°C或-20至70°C）。规范告诉我们，如果我们将25°C的频率作为标称值，那么器件频率将在该标称频率之上或之下的偏差不超过0.28ppm。这与指定温度稳定性的第二种方法不同，第二种方法是使用峰峰值或仅使用无参考点的正/负值。在第二种情况下，我们不能说我们知道频率会在标称之上或之下变化多远——只是我们知道总范围将是多少。通常使用定义参考点的正负值指定设备。

F91200084 12MHz ±30ppm 2-SMD, No Lead
F91200084 12MHz ±30ppm 2-SMD, No Lead
F91200084 12MHz ±30ppm 2-SMD, No Lead
FL2500137Z 25MHz ±30ppm 4-SMD, No Lead
FL2500137Z 25MHz ±30ppm 4-SMD, No Lead
FL2500137Z 25MHz ±30ppm 4-SMD, No Lead
FL3200038Z 32MHz ±10ppm 4-SMD, No Lead
FL3200038Z 32MHz ±10ppm 4-SMD, No Lead
FL3200038Z 32MHz ±10ppm 4-SMD, No Lead
FY1000020 10MHz ±10ppm 4-SMD, No Lead
FY1000020 10MHz ±10ppm 4-SMD, No Lead
FY1000020 10MHz ±10ppm 4-SMD, No Lead
FY1200011 12MHz ±30ppm 4-SMD, No Lead
FY1200011 12MHz ±30ppm 4-SMD, No Lead
FY1200011 12MHz ±30ppm 4-SMD, No Lead
FY0800027 8MHz ±20ppm 4-SMD, No Lead
FY0800027 8MHz ±20ppm 4-SMD, No Lead
FY0800027 8MHz ±20ppm 4-SMD, No Lead
F62500047 25MHz ±30ppm 2-SMD, No Lead
F62500047 25MHz ±30ppm 2-SMD, No Lead
F62500047 25MHz ±30ppm 2-SMD, No Lead
F60800010 8MHz ±30ppm 2-SMD, No Lead
F60800010 8MHz ±30ppm 2-SMD, No Lead
F60800010 8MHz ±30ppm 2-SMD, No Lead
FL5000063Z 50MHz ±30ppm 4-SMD, No Lead
FL5000063Z 50MHz ±30ppm 4-SMD, No Lead
FL5000063Z 50MHz ±30ppm 4-SMD, No Lead
F62400017 24MHz ±30ppm 2-SMD, No Lead
F62400017 24MHz ±30ppm 2-SMD, No Lead
F62400017 24MHz ±30ppm 2-SMD, No Lead
F61600023 16MHz ±30ppm 2-SMD, No Lead
F61600023 16MHz ±30ppm 2-SMD, No Lead
F61600023 16MHz ±30ppm 2-SMD, No Lead
F62700016 27MHz ±50ppm 2-SMD, No Lead
F62700016 27MHz ±50ppm 2-SMD, No Lead
F62700016 27MHz ±50ppm 2-SMD, No Lead
FP0800018 8MHz ±50ppm 4-SMD, No Lead
FP0800018 8MHz ±50ppm 4-SMD, No Lead
FP0800018 8MHz ±50ppm 4-SMD, No Lead
FX0800015 8MHz ±20ppm 4-SMD, No Lead
FX0800015 8MHz ±20ppm 4-SMD, No Lead
FX0800015 8MHz ±20ppm 4-SMD, No Lead
FH1600015 16MHz ±10ppm 4-SMD, No Lead
FH1600015 16MHz ±10ppm 4-SMD, No Lead
FH1600015 16MHz ±10ppm 4-SMD, No Lead

范围从标准VCXO的50ppm到高性能OCXO的0.2ppb。轴被颠倒，使得图在增加温度稳定性的方向上增长。TCXO稳定性范围涵盖了VCXO和OCXO之间的曲线中间（并且在某些情况下与某些OCXO性能重叠）。各种振荡器类型TCXO的温度稳定性范围对工程师很有用，因为它们可以在任何地方获得比标准VCXO高10倍到40倍的温度稳定性，同时具有相同的功耗和电路板上的占位面积。TCXO弥合了标准XO或VCXO与OCXO之间的差距，后者更昂贵且需要更多功率才能运行。技术的推动力是降低功耗，当然还有降低成本，因此TCXO为功率和成本敏感的应用提供了良好的中档解决方案。

FH4800020Z 48MHz ±10ppm 4-SMD, No Lead
FH4800020Z 48MHz ±10ppm 4-SMD, No Lead
FH4800020Z 48MHz ±10ppm 4-SMD, No Lead
FH2700019Z 27MHz ±10ppm 4-SMD, No Lead
FH2700019Z 27MHz ±10ppm 4-SMD, No Lead
FH2700019Z 27MHz ±10ppm 4-SMD, No Lead
FH4000074Z 40MHz ±10ppm 4-SMD, No Lead
FH4000074Z 40MHz ±10ppm 4-SMD, No Lead
FH4000074Z 40MHz ±10ppm 4-SMD, No Lead
FH1220003Z 12.2MHz ±20ppm 4-SMD, No Lead
FH1220003Z 12.288MHz ±20ppm 4-SMD, No Lead
FH1220003Z 12.288MHz ±20ppm 4-SMD, No Lead
FW3840001 38.4MHz ±10ppm 4-SMD, No Lead
FW3840001 38.4MHz ±10ppm 4-SMD, No Lead
FW3840001 38.4MHz ±10ppm 4-SMD, No Lead
FW2500016Z 25MHz ±40ppm 4-SMD, No Lead
FW2500016Z 25MHz ±40ppm 4-SMD, No Lead
FW2500016Z 25MHz ±40ppm 4-SMD, No Lead
FP0730017Z 7.3728MHz ±30ppm 4-SMD, No Lead
FP0730017Z 7.3728MHz ±30ppm 4-SMD, No Lead
FP0730017Z 7.3728MHz ±30ppm 4-SMD, No Lead
G53270004 32.768kHz - 4-SMD, Flat Leads
G53270004 32.768kHz - 4-SMD, Flat Leads
G53270004 32.768kHz - 4-SMD, Flat Leads
FW400WFQA1 40MHz ±10ppm 4-SMD, No Lead
FW400WFQA1 40MHz ±10ppm 4-SMD, No Lead
FW400WFQA1 40MHz ±10ppm 4-SMD, No Lead
US3840005Z 38.4MHz ±10ppm 4-SMD, No Lead
US3840005Z 38.4MHz ±10ppm 4-SMD, No Lead
US3840005Z 38.4MHz ±10ppm 4-SMD, No Lead
SRX6559-E 4MHz ±50ppm HC49/US
FL2400135Z 24MHz ±30ppm 4-SMD, No Lead
FW400WFMR1 40MHz ±10ppm 4-SMD, No Lead
49SMLB04.0000-20GHE-E(T) . . .

通常需要TCXO级别的温度稳定性（从5ppm到50ppb），因为振荡器将自行运行，无论是在没有外部频率参考的系统中的自由运行模式下，还是作为固定频率参考一个合成器，其TCXO在开环中运行以驱动DDS（直接数字合成），其中DDS而不是TCXO被“锁定”到外部参考。

FNETHE025 25MHz ±25ppm -20°C ~ 70°C
FNETHE025 25MHz ±25ppm -20°C ~ 70°C
FNETHE025 25MHz ±25ppm -20°C ~ 70°C
FNSURV027 27MHz ±30ppm -20°C ~ 70°C
FNSURV027 27MHz ±30ppm -20°C ~ 70°C
FNSURV027 27MHz ±30ppm -20°C ~ 70°C
FNGEPO002 2.048MHz ±50ppm -20°C ~ 70°C
FNGEPO002 2.048MHz ±50ppm -20°C ~ 70°C
FNGEPO002 2.048MHz ±50ppm -20°C ~ 70°C
FKSSD1025 25MHz ±25ppm -10°C ~ 70°C
FKSSD1025 25MHz ±25ppm -10°C ~ 70°C
FKSSD1025 25MHz ±25ppm -10°C ~ 70°C
UJWIFI026 26MHz ±20ppm -30°C ~ 85°C
UJWIFI026 26MHz ±20ppm -30°C ~ 85°C
UJWIFI026 26MHz ±20ppm -30°C ~ 85°C
FNEPON125 125MHz ±50ppm -20°C ~ 70°C
FNEPON125 125MHz ±50ppm -20°C ~ 70°C
FNEPON125 125MHz ±50ppm -20°C ~ 70°C
FK1330001Z 13.3333MHz ±25ppm -40°C ~ 85°C
FK1330001Z 13.3333MHz ±25ppm -40°C ~ 85°C
FK1330001Z 13.3333MHz ±25ppm -40°C ~ 85°C
FJ2400011 24MHz ±50ppm -40°C ~ 85°C
FJ2400011 24MHz ±50ppm -40°C ~ 85°C
FJ2400011 24MHz ±50ppm -40°C ~ 85°C
FJ2400002 24MHz ±50ppm -40°C ~ 85°C
FJ2400002 24MHz ±50ppm -40°C ~ 85°C
FJ2400002 24MHz ±50ppm -40°C ~ 85°C
FN2500149 25MHz ±50ppm -40°C ~ 85°C
FN2500149 25MHz ±50ppm -40°C ~ 85°C
FN2500149 25MHz ±50ppm -40°C ~ 85°C
SXGPON155 155.52MHz ±50ppm -40°C ~ 85°C
SXGPON155 155.52MHz ±50ppm -40°C ~ 85°C
SXGPON155 155.52MHz ±50ppm -40°C ~ 85°C
HX2513F0026.000000 26MHz ±50ppm -40°C ~ 105°C
HX2513F0026.000000 26MHz ±50ppm -40°C ~ 105°C

后一种情况（TCXO晶振是开环并且频率设置在DDS）变得越来越普遍，因为设计人员发现他们可以使用DDS解决方案实现比使用数模转换器控制TCXO更好的频率分辨率。由于转向是在DDS中而不是在振荡器中完成的，因此设计人员需要能够对固定参考的频率如何随温度变化做出某些假设，以便他们可以相应地规划锁相环的设计。由于灵活性，它们允许TCXO用于许多频率控制应用，但其中一个重要领域是小型蜂窝基站（femto、micro和pico），它们通常被用作定时分配芯片的固定频率源.

HX2513F0026.000000 26MHz ±50ppm -40°C ~ 105°C
HX3125006Q 25MHz ±30ppm -40°C ~ 105°C
HX3125006Q 25MHz ±30ppm -40°C ~ 105°C
HX3125006Q 25MHz ±30ppm -40°C ~ 105°C
NX3211C0125.000000 125MHz ±50ppm -20°C ~ 70°C
NX3211C0125.000000 125MHz ±50ppm -20°C ~ 70°C
NX3211C0125.000000 125MHz ±50ppm -20°C ~ 70°C
FJ1600002 16MHz ±50ppm -20°C ~ 70°C
FJ1600002 16MHz ±50ppm -20°C ~ 70°C
FJ1600002 16MHz ±50ppm -20°C ~ 70°C
JX7011D0070.656000 70.656MHz ±25ppm -40°C ~ 85°C
JX7011D0070.656000 70.656MHz ±25ppm -40°C ~ 85°C
JX7011D0070.656000 70.656MHz ±25ppm -40°C ~ 85°C
UJ2600007Z 26MHz ±20ppm -20°C ~ 70°C
UJ2600007Z 26MHz ±20ppm -20°C ~ 70°C
UJ2600007Z 26MHz ±20ppm -20°C ~ 70°C
FJ1120001Z 11.2896MHz ±25ppm -40°C ~ 85°C
FJ1120001Z 11.2896MHz ±25ppm -40°C ~ 85°C
FJ1120001Z 11.2896MHz ±25ppm -40°C ~ 85°C
FDC500026 125MHz ±50ppm -20°C ~ 70°C
FDC500026 125MHz ±50ppm -20°C ~ 70°C
FDC500026 125MHz ±50ppm -20°C ~ 70°C
HX7011C0025.000000 25MHz ±25ppm -40°C ~ 105°C
HX7011C0025.000000 25MHz ±25ppm -40°C ~ 105°C
HX7011C0025.000000 25MHz ±25ppm -40°C ~ 105°C
NX5011B0125.000000 125MHz ±25ppm -20°C ~ 70°C
NX5011B0125.000000 125MHz ±25ppm -20°C ~ 70°C
NX5011B0125.000000 125MHz ±25ppm -20°C ~ 70°C
FNA000088Z 100MHz ±50ppm -40°C ~ 85°C
FNA000088Z 100MHz ±50ppm -40°C ~ 85°C
FNA000088Z 100MHz ±50ppm -40°C ~ 85°C
FNA000065 100MHz ±25ppm -20°C ~ 70°C
FNA000065 100MHz ±25ppm -20°C ~ 70°C
FNA000065 100MHz ±25ppm -20°C ~ 70°C
NX71C50003 125MHz ±25ppm -40°C ~ 85°C

TCXO的工作原理

在非常基本的术语中，TCXO通过使用温度补偿网络来工作，该网络可以感应环境温度并将晶体拉至其标称值。基本的振荡器电路和输出级与VCXO中的预期相同。

NX71C50003 125MHz ±25ppm -40°C ~ 85°C
NX71C50003 125MHz ±25ppm -40°C ~ 85°C
FNC500131 125MHz ±50ppm -40°C ~ 85°C
FNC500131 125MHz ±50ppm -40°C ~ 85°C
FNC500131 125MHz ±50ppm -40°C ~ 85°C
NX71C50001 125MHz ±20ppm -20°C ~ 70°C
NX71C50001 125MHz ±20ppm -20°C ~ 70°C
NX71C50001 125MHz ±20ppm -20°C ~ 70°C
FM3900001Z 39.0625MHz ±50ppm -40°C ~ 85°C
FM3900001Z 39.0625MHz ±50ppm -40°C ~ 85°C
FM3900001Z 39.0625MHz ±50ppm -40°C ~ 85°C
FKA000018Z 100MHz ±50ppm -40°C ~ 85°C
FKA000018Z 100MHz ±50ppm -40°C ~ 85°C
FKA000018Z 100MHz ±50ppm -40°C ~ 85°C
HX3124501Q 24.545452MHz ±25ppm -40°C ~ 105°C
HX3124501Q 24.545452MHz ±25ppm -40°C ~ 105°C
HX3124501Q 24.545452MHz ±25ppm -40°C ~ 105°C
HX31330001 33MHz ±50ppm -40°C ~ 90°C
HX31330001 33MHz ±50ppm -40°C ~ 90°C
HX31330001 33MHz ±50ppm -40°C ~ 90°C
HX3212F0040.000000 40MHz ±50ppm -40°C ~ 105°C
HX3212F0040.000000 40MHz ±50ppm -40°C ~ 105°C
HX3212F0040.000000 40MHz ±50ppm -40°C ~ 105°C
SX10GE156 156.25MHz ±50ppm -40°C ~ 85°C
SX10GE156 156.25MHz ±50ppm -40°C ~ 85°C
SX10GE156 156.25MHz ±50ppm -40°C ~ 85°C
HX3127001Q 27MHz ±25ppm -40°C ~ 105°C
HX3127001Q 27MHz ±25ppm -40°C ~ 105°C
HX3127001Q 27MHz ±25ppm -40°C ~ 105°C
HX21480001 48MHz ±50ppm -40°C ~ 105°C
HX21480001 48MHz ±50ppm -40°C ~ 105°C
HX21480001 48MHz ±50ppm -40°C ~ 105°C
NX7031E0125.000000 125MHz ±50ppm -40°C ~ 85°C
NX7031E0125.000000 125MHz ±50ppm -40°C ~ 85°C
NX7031E0125.000000 125MHz ±50ppm -40°C ~ 85°C

这个想法是补偿网络驱动牵引网络，然后调整振荡器的频率。

未补偿的晶体对温度的频率响应（红色）就像一个3阶多项式曲线（如果你考虑振荡器非线性，则更像是5阶），因此补偿网络的目的是产生一个有效地镜像的电压关于晶体曲线的温度轴的图像，以抵消温度对晶体的影响。补偿电压以蓝色显示，产生的频率/温度曲线以绿色绘制。

HX2127001Q 27MHz ±25ppm -40°C ~ 105°C
HX2127001Q 27MHz ±25ppm -40°C ~ 105°C
HX2127001Q 27MHz ±25ppm -40°C ~ 105°C
SHPCIE100 100MHz ±50ppm -40°C ~ 85°C
SHPCIE100 100MHz ±50ppm -40°C ~ 85°C
SHPCIE100 100MHz ±50ppm -40°C ~ 85°C
SQPCIE100 100MHz ±50ppm -40°C ~ 85°C
SQPCIE100 100MHz ±50ppm -40°C ~ 85°C
SQPCIE100 100MHz ±50ppm -40°C ~ 85°C
SN10GE156 156.25MHz ±50ppm -40°C ~ 85°C
SN10GE156 156.25MHz ±50ppm -40°C ~ 85°C
SN10GE156 156.25MHz ±50ppm -40°C ~ 85°C
SQA000001 100MHz ±50ppm -40°C ~ 85°C
SQA000001 100MHz ±50ppm -40°C ~ 85°C
SQA000001 100MHz ±50ppm -40°C ~ 85°C
NX53D3301Z 133.333333MHz ±50ppm -40°C ~ 85°C
NX53D3301Z 133.333333MHz ±50ppm -40°C ~ 85°C
NX53D3301Z 133.333333MHz ±50ppm -40°C ~ 85°C
JT2553P0016.369000 16.369MHz ±500ppb -40°C ~ 85°C
JT2553P0016.369000 16.369MHz ±500ppb -40°C ~ 85°C
JT2553P0016.369000 16.369MHz ±500ppb -40°C ~ 85°C
JT15260001 26MHz ±500ppb -30°C ~ 85°C
JT15260001 26MHz ±500ppb -30°C ~ 85°C
JT15260001 26MHz ±500ppb -30°C ~ 85°C
NX72F5506Z 155.52MHz ±50ppm -20°C ~ 70°C
NX72F5506Z 155.52MHz ±50ppm -20°C ~ 70°C
NX72F5506Z 155.52MHz ±50ppm -20°C ~ 70°C
NX72F6208Z 156.25MHz ±50ppm -20°C ~ 70°C
NX72F6208Z 156.25MHz ±50ppm -20°C ~ 70°C
NX72F6208Z 156.25MHz ±50ppm -20°C ~ 70°C
HX51706001 70.656MHz ±50ppm -40°C ~ 105°C
HX51706001 70.656MHz ±50ppm -40°C ~ 105°C
HX51706001 70.656MHz ±50ppm -40°C ~ 105°C
HX7011C0020.000000 20MHz ±25ppm -40°C ~ 105°C
HX7011C0020.000000 20MHz ±25ppm -40°C ~ 105°C
HX7011C0020.000000 20MHz ±25ppm -40°C ~ 105°C
PBF620074Z 156.25MHz ±50ppm -20°C ~ 70°C
PBF620074Z 156.25MHz ±50ppm -20°C ~ 70°C
PBF620074Z 156.25MHz ±50ppm -20°C ~ 70°C
NX3241E0100.000000 100MHz ±50ppm -40°C ~ 85°C

“推荐阅读”

    【本文标签】：探讨Vectrons VT-803温度补偿晶体振荡器的完美解决方案 HX3212F0040.000000
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