3

May 08, 2001

SAW Components

X 7001 L

30,72 MHz

IF Bandpass Filter

Data Sheet

Characteristics

Reference temperature:

Terminating source impedance:

Terminating load impedance:

min.

typ.

max.

Center frequency

—

30,72

—

MHz

(center between 3 dB points)

Insertion attenuation

α

Reference level for the

30,72 MHz

19,3

20,8

22,3

dB

following data

Pass bandwidth

α

—

1,6

—

MHz

α

—

2,4

—

MHz

α

—

2,6

—

MHz

Relative attenuation

α

rel

Lower sidelobe

22,00 ... 27,92 MHz

40,0

47,0

—

dB

27,92 ... 28,82 MHz

37,0

44,0

—

dB

Lower sidelobe

32,62 ... 42,00 MHz

40,0

47,0

—

dB

Reflected wave signal suppression

1,6

µs ... 6,0 µs after main pulse

38,0

45,0

—

dB

(test pulse 250 ns,

carrier frequency 30,72 MHz)

Group delay ripple (p–p)

∆τ

Aperture 50 kHz

29,95 ... 31,49 MHz

—

50

—

ns

Impedance at 30,72 MHz

Input:

=

||

—

2,0 || 19,8

—

k

Ω || pF

Output:

—

2,5 || 10,1

—k

Ω || pF

Temperature coefficient of frequency

—

–18

—

ppm/K