LPZ455JL-84T【PDF 1/2 页】0.455 MHz, CERAMIC BPF

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Center frequency (fo) is available in a range of 450 to 470KHz. The standard tolerance of fo is ±2KHz. For synthesizers and digital indicators, ±1KHz tolerance is also available.

The LPZ455JL series, with its two directly coupled elements, has a high degree of selectivity. The series features excellent matching characteristics for IFT.

( ) = Typical values

ECS, INC. INTERNATIONAL 1105 S. RIDGEVIEW, OLATHE, KS 66062 913-782-7787 800-237-1041 FAX 913-782-6991 WWW.ECSXTAL.COM

CERAMIC FILTERS

3.5

7.5

2.5 2.5

3.5

Connection

Input

Ground

Output

LPUB / LPZJL SERIES

CERAMIC FILTER

OPERATING CONDITIONS/ELECTRICAL CHARACTERISTICS

3dB

SELECTIVITY

INSERTION

PART NUMBER

BANDWIDTH (KHz)

-9 KHZ OFF (dB) MIN. +9 KHZ OFF (dB) MIN.

LOSS (dB) MAX.

COMPOSITION

LPU455B - (connected with IFT)

10 ±3

5 (7.5)

3 (5.5)

5 (3)

1 Element with IFT

LPZ455JL - (connected with IFT)

5.5 ±1

18 (20)

7 (3.5)

2 Elements Direct Coupling Type

Figure 1) LPU455B – Front and Side views

7.0

±0.3

Direct Coupled

Ground

Connection

Output

Ground

Input

9.0

±0.3

3.5

±0.5

7.0

±0.3

2.5 2.5

3.6

2.5 2.5

Figure 2) LPZ455JL – Front, Side and Bottom views

FEATURES

AM use

RoHS Compliant (Note 7 exemption)

PACKAGE DIMENSIONS (mm)

ITEM \ TYPE

LPU

LPZ

x—yy——x—yy——

70 T

115 T

7 T

68 T

84 T

14 T

UNLOADED Qu

105

TUNING CAPACITY

180pF

WINDING SPECIFICATIONS

Bottom

view

LPU 455B

LPZ 455JL

GROUND

INPUT

OUTPUT

Rg+R1=R2=input/output impedance

S.S.G.

LPU

V.M.

Figure 4) LPU Series – Measuring Circuit

Figure 3) Recommended IFT Specifications

Rg = 50

LPZ

S.S.G.

V.M.

: Input

: Ground

: Direct Coupled

: Output

Figure 5) LPZ Series – Measuring Circuit

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