78
LTM450U SERIES
4 ELEMENT CERAMIC FILTER
Ultra small size high selectivity type ceramic
filter for communication use.
FEATURES
Ultra small size
6.5 mm profile
Bandwidths from
4KHz to 30KHz available
RoHS Compliant (Note 7 exemption)
4 elements
PACKAGE DIMENSIONS (mm)
OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS
ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 913-782-7787 800-237-1041 FAX 913-782-6991 WWW.ECSXTAL.COM
CERAMIC FILTERS
2.4 1.8 0.8
7
6.5
4
7
4.3
0.8
4.3
4
3
2
1
Connection
Input
Ground
Output
Ground
3
4
2
1
2.4
1.8 0.8
Figure 1) LTM450U – Front, Side and Bottom views
R1
Rg
GROUND
INPUT
OUTPUT
Rg+R1=R2=input/output impedance
S.S.G.
LTMU
RF
V.M.
R2
1
2
3
4
Figure 2) LTM450U – Measuring Circuit
Frequency (KHz)
Attenuation
(dB)
0
10
20
30
40
50
60
410
420
430
440
450
460
470
480
490
500
LTM455BU
LTM455EU
LTM455HU
Figure 3) LTM4550U – Characteristics
CENTER
INSERTION
PASS BAND
6 dB
40 dB
STOP BAND ATT.
INPUT / OUTPUT
PART NUMBER
FREQUENCY
LOSS
RIPPLE
BANDWIDTH
±100KHZ
IMPEDANCE
(KHz)
(dB) MAX.
(KHz) MIN.
(dB) MAX.
(dB) MIN.
(
)
LTM450BU
450 ±2.0
4
2
±15
±30
27
1500
LTM450CU
450 ±2.0
4
2
±12.5
±24
27
1500
LTM450DU
450 ±1.5
4
2
±10
±20
27
1500
LTM450EU
450 ±1.5
6
2
±7.5
±15
27
1500
LTM450FU
450 ±1.5
6
2
±6
±12.5
27
2000
LTM450GU
450 ±1.0
6
2
±4.5
±10
25
2000
LTM450HU
450 ±1.0
6
2
±3
±9
25
2000
LTM450IU
450 ±1.0
6
2
±2
±7.5
25
2000
LTM450HTU
450 ±1.0
6
2
±3
±9
35
2000
LTM450ITU
450 ±1.0
6
2
±2
±7.5
35
2000
Note: To avoid potential problems, connect the output to an
IF amplifier through a DC cut capacitor.
Avoid applying a direct current to output end of the ceramic
filters (between and xy).
相关PDF资料
LTM450DU 0.45 MHz, CERAMIC BPF
LTM450EU 0.45 MHz, CERAMIC BPF
LTM450FU 0.45 MHz, CERAMIC BPF
LTM450GU 0.45 MHz, CERAMIC BPF
LTM450HTU 0.45 MHz, CERAMIC BPF
LTM450HU 0.45 MHz, CERAMIC BPF
LTM450ITU 0.45 MHz, CERAMIC BPF
LTM450IU 0.45 MHz, CERAMIC BPF
相关代理商/技术参数
LTM-450CU 制造商:EUROQUARTZ 制造商全称:EUROQUARTZ limited 功能描述:CERAMIC FILTER
LTM450CW 制造商:未知厂家 制造商全称:未知厂家 功能描述:6 ELEMENT CERAMIC FILTER
LTM450DU 制造商:ECS 制造商全称:ECS, Inc. 功能描述:4 ELEMENT CERAMIC FILTER
LTM-450DU 制造商:EUROQUARTZ 制造商全称:EUROQUARTZ limited 功能描述:CERAMIC FILTER
LTM450DW 制造商:未知厂家 制造商全称:未知厂家 功能描述:6 ELEMENT CERAMIC FILTER
LTM450EU 制造商:ECS 制造商全称:ECS, Inc. 功能描述:4 ELEMENT CERAMIC FILTER
LTM-450EU 制造商:EUROQUARTZ 制造商全称:EUROQUARTZ limited 功能描述:CERAMIC FILTER
LTM450EU-080 功能描述:信号调节 450KHz IL=6dB BW=15KHz RoHS:否 制造商:EPCOS 产品:Duplexers 频率:782 MHz, 751 MHz 频率范围: 电压额定值: 带宽: 阻抗:50 Ohms 端接类型:SMD/SMT 封装 / 箱体:2.5 mm x 2 mm 工作温度范围:- 30 C to + 85 C 封装:Reel