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Fax : +44 118 979 1283

Email: info@actcrystals.com

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

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

http://www.actcrystals.com

Electronic Characteristics

Reference temperature:

Terminating source impedance:

Terminating load impedance:

Item

min.

typ.

max.

Unit

Centre frequency

(Centre between 10 dB points)

(38.874)

(38.912)

(38.950)

MHz

Insertion attenuation

IL

Reference level for

the following data

38.922 (38.912)

MHz

17.2

18.7

20.2

dB

Pass bandwidth

α

—

1.5

—

MHz

α

—

2.7

—

MHz

Relative attenuation

α

rel

36.27 … 37.31 (36.26 … 37.30)

MHz

40.0

52.0

—

dB

40.61 … 41.41 (40.60 … 41.40)

MHz

38.0

46.0

—

dB

Lower sidelobe (incl. second adjacent channel)

30.01 … 36.27 (30.00 … 36.26)

MHz

43.0

53.0

—

dB

Upper sidelobe (incl. second adjacent channel)

41.41 … 50.01 (41.40 … 50.00)

MHz

42.0

47.0

—

dB

Reflected wave signal suppression

1.6

μs ... 6.0 μs after main pulse

(test pulse 250 ns, carrier frequency 38.922 MHz)

42.0

52.0

—

dB

Group delay ripple (p-p)

Δ

τ

38.12 … 39.72 (38.11 … 39.71)

MHz

—

35

—

ns

Temperature coefficient of frequency

—

–18

—

ppm/K

Issue : 1 C1

Date : SEPT 04