3

May 15, 2013

B3960

433.92 MHz

SAW Components

SAW RF filter

Data sheet

Please read

cautions and warnings and

Characteristics

Temperature range for specification:

T

= –45 ˚C to +95 ˚C

Terminating source impedance:

Terminating load impedance:

min.

typ.

@ 25 ˚C

max.

Center frequency

—

433.92

—

MHz

Minimum insertion attenuation

α

min

—

2.3

2.9

dB

excl. loss in matching elements

—

1.8

2.4

dB

Pass band (relative to

α

433.77 ...

434.07 MHz

—

0.6

2.0

dB

433.75 ...

434.09 MHz

—

0.8

3.0

dB

Relative attenuation (relative to

α

α

rel

10.00 ...

414.00 MHz

47

52

—

dB

414.00 ...

427.00 MHz

43

48

—

dB

427.00 ...

432.50 MHz

29

34

—

dB

432.50 ...

433.10 MHz

13

17

—

dB

434.92 ...

436.00 MHz

20

25

—

dB

436.00 ...

450.00 MHz

25

30

—

dB

450.00 ...

500.00 MHz

42

47

—

dB

500.00 ...

810.00 MHz

47

52

—

dB

810.00 ... 1500.00 MHz

60

65

—

dB

1500.00 ... 2500.00 MHz

58

63

—

dB

1)

Impedance for passband matching bases on an ideal, perfect matching of the SAW filter to source- and to load

impedance (here 50 Ohm). After removal of the SAW filter the input impedance of the input and output match-

ing network is calculated. The conjugate complex value of these characteristic impedances are the input and

output impedances for flat passband. For more details we refer to EPCOS application note #18.

Input:

—

360 || 1.7

—

Ω || pF

—

360 || 2.2

—

Ω || pF