TOKEN
LTC 455/450 Chip Ceramic Filters
Chip Ceramic Filters for Communication
Surface Mount Ceramic Filters for Communication (Murata CFUCG Compatible)
Preview Token chip ceramic filters LTC455/450 U/W series for communication (Compatible to Murata CFUCG series) comprises small, high performance, thin (4.0mm) consisting of 4 ceramic elements. Their innovative construction is perfect for shrinking mobile communication products such as pocket pagers and cellular phones. The surface mount LTC455/450 U/W series for AM use is one of the most recommendable intermediate filters, having such distinctive features as high selectivity, high stability and adjustment-free operation. Additionally its easy matching with IC helps create an easy circuit design. With dimensions (7.5 x 6.0 mm) and 4.0 mm low profile, the LTC455/450 U/W filters have a small mounting area enabling flexible PCB design and are suitable for automatic placers. Standard Center Frequency is 455kHz with tolerance ±1.5 and 450kHz is also available. Pass Band Ripple (dB) max is 2db, Input / Output Impedance is 1000Ω and 1500Ω. Custom parts are available on request. Token will also produce devices outside these specifications to meet specific customer requirements, please contact our sales for more information. Features - They are slim, at only 4.0mm max. thickness, and have a small mounting area enabling flexible PCB design. - Operating temperature range: -20°C to +80°C. - Can be reflow soldered and withstand washing. - The bandwidth ranges from D to G. - Mountable by automatic placers. Version 2010
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Dimensions
① 455EU ② ③ 7.5Max
LTC 455/450 Chip Ceramic Filters
6.5
6.5
① ③
455EW
② ④
7.5 Max ① Input ③④ Ground ② Output 3.0 Max
6.0
① Input ② Output ③ Ground 4.0 Max
11.5
4.0
5.5
Technical Characteristics
0
(dB) Attenuation
(dB) Attenuation
10 20 30 40 50 60 410
LTC455B LTC455E LTC455H
0 10 20 30 40 50 60 410
LTC455B LTC455E LTC455H
430
450 460
480
500
430
450 460
480
500
Frequency (KHz) Insertion Loss (dB) max LTC LTC 455U 455W 4 4 4 4 6 6 6 6 6 4 4 4 6 6 6 6 Pass Band Ripple (dB) max 2 2 2 2 2 2 2 2 6dB Band Width (kHz) min ±15.0 ±12.5 ±10.0 ±7.5 ±6.0 ±4.5 ±3.0 ±2.0
Frequency (KHz) 40dB Band Width (kHz) min LTC455U ±30 ±25 ±20 ±15 ±12 ±10 ±9.0 ±7.5 Spurious 50dB Input Attenuation Band / fo±100kHz Width Output (dB) min (kHz) Impedance min LTC LTC (Ω) LTC455W 455U 455W ±30 27 50 1000 ±25 ±20 ±15 ±12 ±10 ±9.0 ±7.5 27 27 27 27 25 25 25 50 50 50 47 47 47 47 1000 1500 1500 1500 1500 1500 1500
Part Number
Center Frequency (fo)(kHz) 455±1.5 455±1.5 455±1.5 455±1.5 455±1.5 455±1.5 455±1.5 455±1.5
LTC 455BU LTC 455CU LTC 455DU LTC 455EU LTC 455FU LTC 455GU LTC 455HU LTC 455IU
LTC 455BW LTC 455CW LTC 455DW LTC 455EW LTC 455FW LTC 455GW LTC 455HW LTC 455IW
Note: Center frequency 450KHz is also available.
02 of 03
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Version 2010
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Test Circuit
LTC455□U R1 ① Rg
LTC 455/450 Chip Ceramic Filters
LTC455□W ② ③ R2 RF V.M Rg ① ④ ② ③ R2 RF V.M
~
S.S.G
~
S.S.G
Rg+ R1= R2=Input/Output Impedance
Rg+ R1= R2=Input/Output Impedance
How to Order
LTC455BU Part Number Package
P
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Version 2010
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