LTM-455BU

455±2.0

4

2

±15

±30

27

1500

LTM-455CU

455±2.0

4

2

±12.5

±24

27

1500

LTM-455DU

455±1.5

4

2

±10

±20

27

1500

LTM-455EU

455±1.5

6

2

±7.5

±15

27

1500

LTM-450FU

455±1.5

6

2

±6

±12.5

27

2000

LTM-450GU

455±1.0

6

2

±4.5

±10

25

2000

LTM-450HU

455±1.0

6

2

±3

±9

25

2000

LTM-450IU

455±1.0

6

2

±2

±7.5

25

2000

LTM-450HTU

455±1.0

6

2

±3

±9

35

2000

LTM-450ITU

455±1.0

6

2

±2

±7.5

35

2000

Frequency v. Attenuation Characteristics

Attenuation

(dB)

Frequency (kHz)

0

10

20

30

40

50

60

410 420 430 440 450 460 470 480

500

490

LTM-455BU

LTM-455EU

LTM-455HU

( ) = typical values

LTMU

R2

R1

RG

RF

V.M.

Output

Input

SSG

Ground

1

2

3

RG+R1=R2=Input/Output Impedance

4

TEST CIRCUIT

•

•

•

•

High selectivity type ceramic filters

Pass bandwidths from 30kHz to 4MHz

Easily mounted to PCB

Miniature size

LTM-455 U CERAMIC FILTER

4 Element

SPECIFICATION

Outline and Dimensions

7.0

6.5

4.0

7.0

0.8

4.3

1.8

Actual size

(outline top view)

Connections

1

2

3

4

Input

Output

Ground

Ground

12

3

2.4

4

ELECTRICAL CHARACTERISTICS

Centre

Frequency

(kHz)

Insertion

Loss

(dB max.)

Part

Number

Pass Band

Ripple

(dB max.)

40dB

Bandwidth

(kHz min.)

6dB

Bandwidth

(kHz min.)

Stop Band

Att. ±100kHz

(dB min.)

Input/Output

Impedance

()

W

EUROQUARTZ LIMITED Blacknell Lane CREWKERNE Somerset UK TA18 7HE

Tel: +44(0)1460 230000 Fax: +44(0)1460 230001 Email: sales@euroquartz.co.uk www.euroquartz.co.uk