3

Feb 03, 2004

SAW Components

X 6865 D

36,125 MHz

Bandpass Filter

Data Sheet

Characteristics

Reference temperature:

Terminating source impedance:

Terminating load impedance:

min.

typ.

max.

Center frequency

—

36,125

—

MHz

(center between 3 dB points)

Insertion attenuation

α

Reference level for the

36,13 MHz

16,1

17,6

19,1

dB

following data

Pass bandwith

α

5,8

6,0

6,2

MHz

α

7,4

7,6

7,8

MHz

Relative attenuation

α

rel

33,59 MHz

–1,1

0,1

1,3

dB

38,65 MHz

–0,8

0,4

1,6

dB

33,12 MHz

1,3

2,5

3,7

dB

39,12 MHz

1,9

3,1

4,3

dB

Lower sidelobe

25,00 ... 32,12 MHz

38,0

44,0

—

dB

Upper sidelobe

40,12 ... 41,42 MHz

36,0

40,0

—

dB

41,42 ... 45,00 MHz

38,0

45,0

—

dB

Reflected wave signal suppression

1,3

µs ... 6,0 µs after main pulse

42,0

52,0

—

dB

(test pulse 250 ns,

carrier frequency 36,13 MHz)

Feedthrough signal suppression

1,3

µs ... 1,2 µs before main pulse

50,0

56,0

—

dB

(test pulse 250 ns,

carrier frequency 36,13 MHz)

Group delay ripple (p-p)

∆τ

33,12 ... 39,12 MHz

—

40

—

ns

Impedance at 36,13 MHz

Input:

=

||

—

2,2 ||15,3

—

k

Ω || pF

Output:

—

1,4 || 5,6

—k

Ω || pF

Temperature coefficient of frequency

—

–72

—

ppm/K