3

Feb 27, 2004

SAW Components

B3762

868,30 MHz

Low-loss Filter

Data Sheet

Characteristics

Reference temperature:

Terminating source impedance:

Terminating load impedance:

source- and to load impedance (here 50 Ohm). After the SAW filter is removed and input imped-

ance into the input matching / output matching network is calculated.

The conjugate complex value of these characteristic impedances are the input and output imped-

ances for flat passband. For more details, we refer to EPCOS application note #4.

min.

typ.

max.

Center frequency

—

868,30

—

MHz

(center frequency between 3 dB points)

Minimum insertion attenuation

α

min

868,00 ... 868,60 MHz

—

3,1

3,8

dB

Pass band (relative to

α

868,10 ... 868,50 MHz

—

0,5

2,0

dB

868,00 ... 868,60 MHz

—

1,0

3,0

dB

Pass bandwidth

α

1,25

1,35

1,45

MHz

Relative attenuation (relative to

α

α

rel

10,00 ... 850,00 MHz

55

59

—

dB

850,00 ... 858,00 MHz

50

55

—

dB

858,00 ... 865,50 MHz

30

35

—

dB

871,00 ... 880,00 MHz

23

27

—

dB

880,00 ... 890,00 MHz

40

45

—

dB

890,00 ...1000,00 MHz

55

59

—

dB

Input:

=

||

—

270 || 1,0

—

Ω || pF

Output:

—

270 || 1,0

—

Ω || pF