B39431B3782Z810【PDF 3/9 页】FILTER SAW 433.92MHZ SMD

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SAW Components

SAW filter

Data sheet

Characteristics

Temperature range for specification:

Terminating source impedance:

Terminating load impedance:

T = –40 ?C to +105 ?C

Z S = 50 ? and matching network

Z L = 50 ? and matching network

B3782

433.92 MHz

min.

typ.

@ 25 ?C

max.

Center frequency

f C

—

433.92

—

MHz

Minimum insertion attenuation

α min

incl. loss in matching elements (Q L = 46)

excl. loss in matching elements

—

—

2.2

1.3

2.9

2.0

dB

dB

Pass band (relative to α min )

433.385 ... 434.455 MHz 1)

433.370... 434.470 MHz 2)

—

—

1.3

1.4

2.5

3.0

dB

dB

Relative attenuation (relative to α min )

α rel

10.00 ... 390.00 MHz

390.00 ... 425.00 MHz

425.00 ... 430.00 MHz

430.00 ... 432.80 MHz

432.80 ... 433.00 MHz

435.00 ... 435.40 MHz

435.40 ... 441.50 MHz

441.50 ... 450.00 MHz

450.00 ... 550.00 MHz

550.00 ... 1000.00 MHz

1000.00 ... 2500.00 MHz

50

45

29

18

7

8

15

35

48

55

45

55

50

33

23

14

12

19

40

53

60

50

—

—

—

—

—

—

—

—

—

—

—

dB

dB

dB

dB

dB

dB

dB

dB

dB

dB

dB

Impedance for pass band matching 3)

Input: Z IN

= R IN

|| C IN

—

400 || 2.6

—

? || pF

Output: Z OUT = R OUT || C OUT

—

400 || 2.6

—

? || pF

1)

2)

3)

433.385 ... 434.400 MHz for extended temperature range –40 ?C to +125 ?C.

433.370 ... 434.415 MHz for extended temperature range –40 ?C to +125 ?C.

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 #4.

Maximum ratings

Operable temperature range T

–45/+125 ?C

Storage temperature range

T stg

–45/+125 ?C

DC voltage

V DC

6

V

Source power

P S

10

dBm

source impedance 50 ?

Please read cautions and warnings and

important notes at the end of this document.

3

December 20, 2012

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