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:

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Fax :

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In keeping with our ongoing policy of product evolvement and improvement, the above specification is subject to change without notice.

ISO9001: 2000 Registered

-

Registration number 6830/2

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3 The Business Centre, Molly Millars Lane, Wokingham, Berks, RG41 2EY, UK

http://www.actcrystals.com

4-2.Electronic Characteristics

Reference temperature:

Terminating source impedance:

Terminating load impedance:

Group delay aperture:

0.25MHz

Characteristics of Channel1

Characteristic

Min.

Typ.

Max.

Units

Center Frequency

fc

478.50

479.50

480.50

MHz

Insertion attenuation

479.50 MHz

α

(Reference level for the following data)

--

21.0

22.5

dB

Pass bandwidth

--

27.0

--

MHz

Relative attenuation

466.00 MHz

493.00 MHz

Lower sidelobe

430.00 ….452.00 MHz

Upper sidelobe

507.00 … 530.00 MHz

--

--

32.0

30.0

3.3

2.5

38.0

36.0

4.5

4.5

--

--

dB

dB

dB

dB

Reflected wave signal suppression

0.13

μs … 2.0μs after main pulse

40.0

49.0

--

dB

Amplitude ripple (p-p)

471.00 … 488.00 MHz

Δ α

--

0.6

1.2

dB

Group delay ripple (p-p)

466.00 … 493.00 MHz

Δ

τ

--

11

18

ns

Temperature coefficient of frequency

--

-86

--

ppm/K

Issue : 1 C1

Date : SEPT 04