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使用Suntsu最新的射频滤波器突破噪音

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用Suntsu最新的射频滤波器突破噪音

使用Suntsu最新的射频滤波器突破噪音

在Suntsu松图晶振,我们致力于帮助科技公司创造未来。我们很高兴地宣布,我们的产品目录中增加了几款射频滤波器,采用陶瓷和SAW滤波器制造技术制造。请继续阅读,了解它们的主要特性和应用,或者联系我们的代表获取免费样品。
射频滤波器(RF filters)是一种组件,用于通过允许符合特定频率的信号通过同时抑制不需要的频率信号来最大限度地减少无线技术中的干扰。想象一下收音机,你如何转动旋钮来调到不同的频道。当你转动旋钮时,你可以改变射频滤波器允许通过和抑制的频率信号,只让你想要的频率(也就是你想要的电台)通过。
RF滤波器的工作频率范围从中频到非常高,非常适合无线通信应用。GPS、Wi-Fi、蓝牙、电视接收机和智能手机,只是RF滤波器几乎无穷无尽应用中的几个例子。
RF滤波器的类型
RF滤波器可分为四种主要类型:低通、高通、带通和带阻。
低通滤波器(LPF)
低通滤波器是使频率低于某一截止频率的信号通过并衰减频率高于截止频率的信号的滤波器石英晶体。低通滤波器用于各种音频应用中,以过滤噪声。当“噪音”或高频信号通过低通滤波器时,噪音被消除,产生清晰的声音。
高通滤波器(HPF)
高通滤波器与低通滤波器相反,允许频率较高的信号通过,同时衰减低于截止频率的频率。
带通滤波器(BPF)
带通滤波器是用于隔离或滤除特定频带或频率范围内的特定频率的贴片滤波器。这些滤波器用于要求高选择性的应用,如电视或收音机。
带阻滤波器(BSF)
带阻滤波器也称为带阻滤波器,其功能与带通滤波器完全相反。这些滤波器阻止或衰减位于其两个截止频率之间的频率,并通过截止点以外的所有频率信号。这些滤波器应用广泛,包括音频系统,可以消除干扰引起的嗡嗡声。
声表滤波器

SAW Filters
Minimum Package Size 1.1mm x 0.9mm
Maximum Package Size 13.3mm x 6.5mm
Minimum Frequency Range 0.15MHz
Maximum Frequency Range 2.6GHz
Package Type SMD; Dip Type
Applications WiFi, GPS, ISM, 5G Network, Automotive available
Series
Image
SMT Package Size Range
Throughhole Package Size Range
Frequency
Passband Width
Key Feature
SFLSI-13D6F SFLSI-13D6F 13.3x6.5mm, 12-pad N/A 70.000 to 140.000MHz 0.02 to 76MHz Industrial spec, SMD package
SFLSI-14F10A SFLSI-14F10A N/A 14.5x10.0mm, Dip type 70.000 to 140.000MHz 6.0 to 29MHz Industrial spec, Dip type
SFLSI-22B12G SFLSI-22B12G N/A 22.1x12.6mm, Dip type 70.000 to 140.000MHz 0.6 to 30MHz Industrial spec, Dip type
SFLSI-27C12G SFLSI-27C12G N/A 27.2x12.6mm, Dip type 70.000 to 140.000MHz 3.0 to 42MHz Industrial spec, Dip type
SFLSI-34I12G SFLSI-34I12G N/A 34.8x12.6mm, Dip type 70.000 to 140.000MHz 0.4 to 50MHz Industrial spec, Dip type
SFLSR-1BJ SFLSR-1BJ 1.1x0.9mm, 5-pad N/A 1575.42MHz 46.0MHz Compass & GPS, Smallest size package.
SFLSR-1E1B SFLSR-1E1B 1.4x1.0mm, 5-pad N/A 722.000 to 2655.000MHz 9.0 to 100MHz Automotive and Telematics, Small size package.
SFLSR-2A1G SFLSR-2A1G 2.0x1.6mm, 4-pad N/A 719.000 to 2017.500MHz 2.0 to 26MHz Industrial spec, Small size package.
SFLSR-3A3A SFLSR-3A3A 3.0x3.0mm, 6-pad N/A 315.000 to 2655.000MHz 0.15 to 20MHz Industrial spec, Small size package.
SFLSR-3I3I SFLSR-3I3I 3.8x3.8mm, 8-pad N/A 110.592 to 868.350MHz 0.15 to 20MHz Industrial spec, Small size package.
SFLSR-5A3F SFLSR-3I3I 5.0x3.5mm, 4-pad N/A 315.000 to 868.350MHz 0.15 to 0.3MHz Industrial spec, Small size package.


平衡转换器
Balun Transformer
Package Size 1.6mm x 0.8mm
Frequency Bandwidth 2.4GHz to 2.5GHz
Package Type SMD
Key Features Low insertion loss and high rejection rate
LTCC process
Applications WiFi
Series
Image
SMT Package Size Range
Throughhole Package Size Range
Frequency
Bandwidth
Key Feature
SRFBT-1GI1G-WFB8 SRFBT-1GI1G-WFB8 1.60x0.80mm, 6-pad N/A 2400 to 2500MHz 100MHz Miniature Footprint, Low Insertion Loss, High Rejection Rate, LTCC Process
带通滤波器
Band Pass Filters
Minimum Package Size 1.4mm x 1.1mm
Maximum Package Size 7.3mm x 3.5mm
Frequency Bandwidths Options 1550MHz to 1610MHz; 1160MHz to 1300MHz; 2400MHz to 2500MHz; 26500MHz to 29500MHz
Package Type SMD
Key Features Low insertion loss and high rejection rate
LTCC process
Applications WiFi, GPS, ISM, 5G Network
Series
Image
SMT Package Size Range
Throughhole Package Size Range
Frequency
Bandwidth
Key Feature
SRFBF-1BJ1J-GPBA SRFBF-1BJ1J-GPBA 1.10x0.90mm, 5-pad N/A 1550 to 1610MHz 60MHz Miniature Footprint, Low Insertion Loss, LTCC Process
SRFBF-1E1B1A-WFB8 SRFBF-1E1B1A-WFB8 1.40x1.10mm, 5-pad N/A 2400 to 2500MHz 100MHz Miniature Footprint, Low Insertion Loss, LTCC Process, High Rejection Rate
SRFBF-1GIJ5-WFB1 SRFBF-1GIJ5-WFB1 1.60x0.80mm, 3-pad N/A 2400 to 2500MHz 100MHz Miniature Footprint, Low Insertion Loss, LTCC Process, High Rejection Rate
SRFBF-5H5B1J-CMBB SRFBF-5H5B1J-CMBB 5.7x5.16mm N/A 1160 to 1300 140MHz High Attenuation on Harmonic Suppressed, LTCC Process
SRFBF-5H5B3A-CMBC SRFBF-5H5B3A-CMBC 5.7x5.16mm N/A 1520 to 1610 90MHz High Attenuation on Harmonic Suppressed, LTCC Process
SRFBF-7D3F1D-CMBD SRFBF-7D3F1D-CMBD 7.3x3.5mm N/A 26500 to 29500 3000MHz High Attenuation on Harmonic Suppressed, LTCC Process