4

Jan 12, 2005

SAW Components

X 7257 M

36,125 MHz

Bandpass Filter

Data Sheet

Characteristics of channel 2 (switching input pin 2 connected to pin 1)

Reference temperature:

Terminating source impedance:

Terminating load impedance:

min.

typ.

max.

Insertion attenuation

α

Reference level for the

36,125 MHz

20,5

22,0

23,5

dB

following data

Pass bandwidth

α

—

6,0

—

MHz

α

—

7,7

—

MHz

Relative attenuation

α

rel

33,59 MHz

– 1,2

0,0

1,2

dB

38,65 MHz

– 1,2

0,0

1,2

dB

33,12 MHz

—

2,7

—

dB

39,12 MHz

—

2,7

—

dB

Lower sidelobe

25,00 ... 32,00 MHz

34,0

40,0

—

dB

Upper sidelobe

40,40 ... 42,50 MHz

27,0

33,0

—

dB

42,50 ... 45,00 MHz

33,0

39,0

—

dB

Reflected wave signal suppression

1,4

µs ... 6,0 µs after main pulse

40,0

50,0

—

dB

(test pulse 250 ns, carrier frequency 36,125 MHz)

Feedthrough signal suppression

1,3

µs ... 1,2 µs before main pulse

—

50,0

—

dB

(test pulse 250 ns, carrier frequency 36,125 MHz)

Group delay ripple (p-p)

∆τ

33,59 ... 38,65 MHz

—

50

—

ns

Impedance at 36,125 MHz

Input:

=

||

—

1,6 ||17,0

—

k

Ω || pF

Output:

—

2,4 || 4,3

—k

Ω || pF

Temperature coefficient of frequency

—

–72

—

ppm/K