3

Feb 04, 2004

SAW Components

B3647

125,0 MHz

Low-Loss Filter

Data Sheet

Characteristics

Operating temperature:

Terminating source impedance:

Terminating load impedance:

min.

typ.

max.

Nominal frequency

—

125,0

—

MHz

Insertion attenuation

α

max

1,2

1,5

3,2

dB

Passband width

α

—

2,2

—

MHz

Amplitude ripple (p-p)

∆α

—

0,15

1,0

dB

Absolute group delay (at

τ

—

250

300

ns

Group delay ripple (p-p)

∆τ

—

20

30

ns

Relative attenuation (relative to

α

α

rel

10,0 MHz ...

12,0

70,0

—

dB

5,0

50,0

—

dB

0,0

—

—

dB

0,0

—

—

dB

30,0

50,0

—

dB

44,0

48,0

—

dB

38,0

46,0

—

dB

1) With two 10 dBm fundamental signals at 125 MHz and 139 MHz applied the third order intermodulation product

at the output at 111 MHz will have less than -64 dBm.

45

—

—

dBm

VSWR

—

1,4:1

2,0:1

Temperature coefficient of frequency

—

-70

—

ppm/K