3

Mar 02, 2004

SAW Components

B4957

128,1 MHz

Low-Loss Filter for Mobile Communication

Data Sheet

Operating temperature range:

T

= -30˚C ... +85 ˚C

Terminating source impedance:

Terminating load impedance:

min.

typ.

max.

Nominal frequency

—

128,1

—

MHz

Minimum insertion attenuation

α

min

—

9,2

10,5

dB

(including loss in matching network without loss in balun)

Amplitude ripple

∆α

...

—

0,6

1,0

dB

Phase linearity (rms deviation)

—

1,6

3,0

˚

Relative attenuation (relative to

α

α

rel

—

4,0

4,5

dB

10,0

MHz

...

1) exception: 122,1 MHz +/- 200 kHz

48

—

dB

...

37

39

—

dB

37

49

—

dB

37

44

—

dB

37

52

—

dB

37

43

—

dB

37

40

—

dB

37

53

—

dB

37

44

—

dB

37

54

—

dB

...

37

40

—

dB

...

2) exception: 135,2 MHz +/- 300 kHz

48

—

dB

172,485 MHz ...

173,715 MHz

60

75

—

dB

207,485 MHz ...

208,715 MHz

48

50

—

dB