MHz 振荡器

立即购买申请样片联系销售

SiTime 可提供完整的 MEMS MHz 振荡器产品组合，包括单端振荡器、差分振荡器、车载振荡器、扩频振荡器和 VCXO。这些器件专为提供更高的可靠性，实现更短的交货周期，解决诸如 EMI 等独有的时钟问题而设计。无需重新设计或布局更改就能替代石英振荡器。

类别

LVPECL / LVDS / HCSL 振荡器 LVCMOS 振荡器 车载与高温振荡器 扩频振荡器 Voltage-Controlled Oscillators 数控 VCXO I2C/SPI Oscillators
LVPECL / LVDS / HCSL Oscillators Package 6-pin Top Bottom

LVPECL / LVDS / HCSL 振荡器

SiTime 可为网络、服务器、存储和电信应用提供广泛的高性能差分振荡器产品组合。当处于冲击、震动、高噪声电源和EMI 等常见的恶劣环境中时，SiT91xx和SiT93xx 系列能提供业界最佳的抖动性能和电源噪声抑制(PSNR) 功能。

  • 以1Hz 为增量提供从1MHz 到725MHz 不等的任意频率
  • 以符合业界标准的小外形封装提供0.23 到0.6ps 的抖动（典型值）
  • 提供业界最佳的±10ppm 的动态精度
器件 产品说明书 立即购买 频率 精度(ppm) 输出类型 供电电压(V) 温度范围(°C) 封装尺寸(mm)
SiT9120 Buy Now 31 standard frequencies ±10 ±20 ±25 ±50 LVPECL LVDS 2.5 3.3 2.25 to 3.63 -20 to +70 -40 to +85 3.2x2.5 5.0x3.2 7.0x5.0
SiT9121 Buy Now 1 to 220 MHz ±10 ±20 ±25 ±50 LVPECL LVDS 2.5 3.3 2.25 to 3.63 -20 to +70 -40 to +85 3.2x2.5 5.0x3.2 7.0x5.0
SiT9122 Buy Now 220 to 625 MHz ±10 ±20 ±25 ±50 LVPECL LVDS 2.5 3.3 2.25 to 3.63 -20 to +70 -40 to +85 3.2x2.5 5.0x3.2 7.0x5.0
SiT9365 Buy Now 32 standard frequencies ±10 ±20 ±25 ±50 LVPECL LVDS HCSL 2.5 2.8 3 3.3 -20 to +70 -40 to +85 -40 to +105 3.2x2.5 5.0x3.2 7.0x5.0
SiT9366 Buy Now 1 to 220 MHz ±10 ±20 ±25 ±50 LVPECL LVDS HCSL 2.5 2.8 3 3.3 -20 to +70 -40 to +85 -40 to +105 3.2x2.5 5.0x3.2 7.0x5.0
SiT9367 Buy Now 220 to 725 MHz ±10 ±20 ±25 ±50 LVPECL LVDS HCSL 2.5 2.8 3 3.3 -20 to +70 -40 to +85 -40 to +105 3.2x2.5 5.0x3.2 7.0x5.0
SiT9501 Buy Now 14 standard frequencies ±20 ±25 ±30 ±50 LVPECL LVDS HCSL Low-power HCSL FlexSwing 1.8 2.5 2.8 3.3 1.71 to 3.63 2.25 to 3.63 -20 to +70 -40 to +85 -40 to +95 -40 to +105 2.0x1.6 2.5x2.0 3.2x2.5
SiT9375 Buy Now 31 standard frequencies ±20 ±25 ±30 ±50 LVPECL LVDS HCSL Low-power HCSL FlexSwing 1.8 2.5 3.3 1.71 to 3.63 2.25 to 3.63 -20 to +70 -40 to +85 -40 to +95 -40 to +105 2.0 x 1.6 2.5 x 2.0 3.2 x 2.5

重要资源

AN10029 Output Terminations for Differential Oscillators
LVCMOS Oscillator Package 4-pin Top Bottom

LVCMOS 振荡器

SiTime 可为消费类电子、工业类、IoT 和网络应用提供广泛的 LVCMOS 振荡器产品组合。这些器件不仅尺寸小而且功耗低，此外，还能以多种封装供货。

  • 1 至 220MHz时精度精确到小数点后六位
  • 低至 60µA 的最低功耗
  • 提供业界最佳的 ±10ppm 的频率精度
  • 最小封装 (1508) 以及符合业界标准的封装（2016、2520、3225、5032和7050）
  • SOT23-5-Leaded 封装实现最佳可制造性
  • 用于降低EMI 的 FlexEdge™ 压摆率选项：0.25ns 到 40ns 的可配置上升/下降时间
器件 产品说明书 立即购买 频率 精度(ppm) 输出类型 供电电压(V) 温度范围(°C) 封装尺寸(mm)
SiT1602 Buy Now 52 standard frequencies ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 1.8 to 3.3 -20 to +70 -40 to +85 2.0x1.6 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT2001 Buy Now 1 to 110 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -20 to +70 -40 to +85 SOT23 (2.9x2.8)
SiT2002 Buy Now 115 to 137 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -20 to +70 -40 to +85 SOT23 (2.9x2.8)
SiT8009 Buy Now 115 to 137 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -20 to +70 -40 to +85 2.0x1.6 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT8208 Buy Now 1 to 80 MHz ±10 ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -20 to +70 -40 to +85 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT8209 Buy Now 80 to 220 MHz ±10 ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -20 to +70 -40 to +85 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0

重要资源

AN10002 Termination Recommendations for Single-ended Oscillator Driving Single or Multiple Loads AN10022 Rise and Fall Time Selection for SiT8103, SiT8003, and SiT9003
Automotive & High Temp Oscillator Package 4-pin Top Bottom

车载与高温振荡器

SiTime 的车载 (AEC-Q100) 与高温振荡器在 -55 °C 至 125 °C 的温度范围内可提供 ±20ppm 的频率稳定性。与石英振荡器相比，其精度高出 2 倍，可靠性高出 20 倍，抗冲击与耐振动能力高 30 倍。

  • 1 至 137MHz 并且精度精确到小数点后六位
  • -55 至 125 °C 的军规温度、-40 至 125 °C的车规温度、-40 至 105 °C的更广泛工规温度
  • 低至 0.1ppb/g 的振动敏感性（g敏感性）
  • 耐 50,000g 冲击和 70g 振动
  • 5 亿小时平均故障间隔时间（MTBF）
器件 产品说明书 立即购买 频率 精度(ppm) 输出类型 供电电压(V) 温度范围(°C) 封装尺寸(mm)
SiT2018 Buy Now 1 to 110 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -40 to +105 -40 to +125 SOT23 (2.9x2.8)
SiT2019 Buy Now 115 to 137 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -40 to +105 -40 to +125 SOT23 (2.9x2.8)
SiT2020 Buy Now 1 to 110 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -55 to +125 SOT23 (2.9x2.8)
SiT2021 Buy Now 119 to 137 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -55 to +125 SOT23 (2.9x2.8)
SiT2024 Buy Now 1 to 110 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -40 to 85 (Gr. 3) -40 to 105 (Gr. 2) -40 to 125 (Gr. 1) -55 to 125 (Ext. Cold Gr. 1) SOT23 (2.9x2.8)
SiT2025 Buy Now 115 to 137 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -40 to 85 (Gr. 3) -40 to 105 (Gr. 2) -40 to 125 (Gr. 1) -55 to 125 (Ext. Cold Gr. 1) SOT23 (2.9x2.8)
SiT8918 Buy Now 1 to 110 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -40 to +105 -40 to +125 2.0x1.6 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT8919 Buy Now 115 to 137 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -40 to +105 -40 to +125 2.0x1.6 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT8920 Buy Now 1 to 110 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -55 to +125 2.0x1.6 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT8921 Buy Now 119 to 137 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -55 to +125 2.0x1.6 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT8924 Buy Now 1 to 110 MHz ±20 ±25 ±30 ±50 LVCMOS 1.8 2.5 to 3.3 -40 to +85 -40 to +105 -40 to +125 -55 to +125 2.0x1.6 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT8925 Buy Now 115 to 137 MHz ±20 ±25 ±30 ±50 LVCMOS 1.8 2.5 to 3.3 -40 to +85 -40 to +105 -40 to +125 -55 to +125 2.0x1.6 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT9386 Buy Now 1 to 220 MHz ±20 ±25 ±50 LVPECL LVDS HCSL 2.5 2.8 3.0 3.3 -40 to 85 (Gr. 3) -40 to 105 (Gr. 2) 3.2x2.5 7.0x5.0
SiT9387 Buy Now 220 to 725 MHz ±20 ±25 ±50 LVPECL LVDS HCSL 2.5 2.8 3.0 3.3 -40 to 85 (Gr. 3) -40 to 105 (Gr. 2) 3.2x2.5 7.0x5.0
SiT9025 Buy Now 1 to 150 MHz ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -40 to 85 (Gr. 3) -40 to 105 (Gr. 2) -40 to 125 (Gr. 1) -55 to 125 (Ext. Cold Gr. 1) 2.0x1.6 mm 2.5x2.0 mm 3.2x2.5 mm
SiT9396 Buy Now 1 to 220 MHz ±30 ±50 LVPECL LVDS HCSL Low-power HCSL FlexSwing 1.8 2.5 3.3 2.25 to 3.63 1.71 to 3.63 -40 to +85 -40 to +105 -40 to +125 2.0 x 1.6 2.5 x 2.0 3.2 x 2.5
SiT9397 Buy Now 220 to 920 MHz ±30 ±50 LVPECL LVDS HCSL Low-power HCSL FlexSwing 1.8 2.5 3.3 2.25 to 3.63 1.71 to 3.63 -40 to +85 -40 to +105 -40 to +125 2.0 x 1.6 2.5 x 2.0 3.2 x 2.5

重要资源

Increase automotive reliability and performance with ultra robust MEMS oscillators AEC-Q100 Automotive Oscillators for ADAS, Camera Modules, and In-Vehicle Ethernet
Spread Spectrum Oscillator Package 4-pin Top Bottom

扩频振荡器

SiTime用于降低EMI 的振荡器可通过扩频时钟和时钟信号的上升/下降时间调整来确保满足辐射合规要求。此类振荡器由SiTime 的Time Machine II 编程器提供支持，能帮助工程师快速降低辐射水平，进而确保客户通过合规性认证。

  • 基频高达17dB，谐波高达30dB
  • 宽泛的扩展范围：高达4% 的峰至峰
  • 提供FlexEdge™ 可配置上升下降时间选项：0.25ns到40ns 的压摆率
器件 产品说明书 立即购买 频率 精度(ppm) 输出类型 供电电压(V) 温度范围(°C) 封装尺寸(mm)
SiT9002 Buy Now 1 to 220 MHz ±25 ±50 LVPECL LVDS CML HCML 1.8 2.5 3.3 -20 to +70 -40 to +85 5.0x3.2 7.0x5.0
SiT9003 Buy Now
SiT9005 Buy Now 1 to 141 MHz ±20 ±25 ±50 LVCMOS 1.8 2.5 to 3.3 -20 to +70 -40 to +85 2.0x1.6 2.5x2.0 3.2x2.5

重要资源

AN10005 Spread Spectrum Clock Oscillators AN10022 Rise and Fall Time Selection for SiT8103, SiT8003, and SiT9003
Voltage-Controlled Oscillator Package 4-pin Top Bottom

Voltage-Controlled Oscillators

SiTime MEMS VCXO 可为视频分配(CMTS)、网络、电信及仪器应用提供优异的动态性能与业界最高的可靠性。这些器件经过精心设计，可在面临冲击、震动、电源噪声高以及EMI 等常见环境问题时，仍然保持相位噪声和频率微调精度不变。它们能够让线缆头端和远程射频头(RRH) 等设备在无空调基站内或屋顶等非受控环境中提供最高性能、最佳可靠性及最优的服务质量。

  • 以1Hz 步进提供从 1MHz 到 725MHz 不等的任意频率
  • 在整个温度范围内（-40到+85 °C）提供业界最佳的±15 ppm 的动态精度
  • 0.02ps/mV 的电源噪声抑制(PSNR) 水平，降低供电要求
  • 比石英优异50 倍的最佳(0.1%) 和最宽（±25 到±3200ppm）拉动范围线性度
器件 产品说明书 立即购买 频率 精度(ppm) 输出类型 供电电压(V) 温度范围(°C) 封装尺寸(mm)
SiT3372 Buy Now 1 to 220 MHz ±15 ±25 ±30 ±50 LVPECL LVDS HCSL 2.5 2.8 3.0 3.3 -20 to +70 -40 to +85 -40 to +105 3.2x2.5 7.0x5.0 5.0x3.2
SiT3373 Buy Now 220 to 725 MHz ±15 ±25 ±30 ±50 LVPECL LVDS HCSL 2.5 2.8 3.0 3.3 -20 to +70 -40 to +85 -40 to +105 3.2x2.5 7.0x5.0 5.0x3.2
SiT3807 Buy Now 31 frequencies ±25 ±50 LVCMOS 1.8 2.5 2.8 3.3 -20 to +70 -40 to +85 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT3808 Buy Now 1 to 80 MHz ±25 ±50 LVCMOS 1.8 2.5 2.8 3.3 -20 to +70 -40 to +85 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0
SiT3809 Buy Now 80 to 220 MHz ±25 ±50 LVCMOS 1.8 2.5 2.8 3.3 -20 to +70 -40 to +85 2.5x2.0 3.2x2.5 5.0x3.2 7.0x5.0

重要资源

AN10020 Definitions of VCXO Specifications AN10021 VCXO Parameter Trade-offs for PLL Design
Digitally Controlled Oscillator VCXO Package 6-pin Top Bottom

数控 VCXO

SiTime的数控MEMS振荡器(DCXO)能帮助用户通过单线数字接口对输出频率进行微调，牵引范围高达±1600ppm，从而无需在传统的VCXO设计中使用外部DAC。此外，其还可消除在电压控制线路上由电路板噪声引起的频移。

  • 业界最宽泛的拉动范围选项，包括±25、±50、±100、±150、±200、±400、±800及±1600ppm
  • 1ppb的拉动范围分辨率
  • 任意组合的频率（高达625MHz）、电压（1.8V、2.5V至3.3V）、拉动范围（±25ppm至±1600ppm）以及业界标准封装（3225、5032或7050）
  • LVCMOS输出（SiT3907）与差动输出（SiT3921和SiT3922）
器件 产品说明书 立即购买 频率 精度(ppm) 输出类型 供电电压(V) 温度范围(°C) 封装尺寸(mm)
SiT3907 Buy Now 1 to 220 MHz ±10 ±25 ±50 LVCMOS 1.8 2.5 2.8 3.3 -20 to +70 -40 to +85 3.2x2.5 5.0x3.2 7.0x5.0
SiT3921 Buy Now 1 to 220 MHz ±10 ±25 ±50 LVPECL LVDS 2.5 3.3 -20 to +70 -40 to +85 3.2x2.5 5.0x3.2 7.0x5.0
SiT3922 Buy Now 220 to 625 MHz ±10 ±25 ±50 LVPECL LVDS 2.5 3.3 -20 to +70 -40 to +85 3.2x2.5 5.0x3.2 7.0x5.0

重要资源

AN10041 Designing with the SiT39xx Family of DCXOs (Digitally Controlled Oscillators)
I2C/SPI Oscillator 11 pins Package

I2C/SPI Oscillators

SiTime's Elite Platform™ I2C/SPI oscillators enable users to program output frequency and pull frequency in-system using a digital interface, offering designers great flexibility. This family offers ultra-low jitter and utilizes SiTime’s unique DualMEMS™ temperature sensing and TurboCompensation™ technology to deliver exceptional dynamic performance.

  • Ideal for replacing multiple timing components in systems that support multiple frequencies such as telecom, networking, server, storage, broadcasting, test and measurement equipment 
  • Any-frequency mode for programming output frequency via I2C or SPI from 1 MHz to 725 MHz
  • Digitally controlled oscillator (DCO) mode for pulling/tuning frequency up to ±3200 ppm via I2C or SPI with 0.005 ppb resolution
  • Any combination of frequencies (1 MHz to 725 MHz), voltage (2.5 V to 3.3 V), pull range (±25 ppm to ±3200 ppm), and three DE output formats (LVPECL, LVDS, or HCSL)
  • 0.2 ps typical integrated phase jitter
器件 产品说明书 立即购买 频率 精度(ppm) 输出类型 供电电压(V) 温度范围(°C) 封装尺寸(mm)
SiT3521 Buy Now 1 to 340 MHz ±20 ±25 ±50 LVPECL LVDS HCSL 2.5 to 3.3 -20 to +70 -40 to +85 -40 to +105 5.0 x 3.2 10-pin
SiT3522 Buy Now 340 to 725 MHz ±20 ±25 ±50 LVPECL LVDS HCSL 2.5 to 3.3 -20 to +70 -40 to +85 -40 to +105 5.0 x 3.2 10-pin

重要资源

AN10050 I2C/SPI Programmable Oscillators

Subscribe to SiTime news, training and offers

We process your personal information in accordance with our Privacy Policy. You can manage your communication preferences in the Preference Center.