B3567 datasheet(3/6 Pages) EPCOS

3 / 6 page

May 09, 2001

SAW Components

B3567

433,42 MHz

Low-loss Filter

Data Sheet

Characteristics

Reference temperature:

TA = -20 ... 70 ˚C

Terminating source impedance:

ZS = 50 Ω and matching network

Terminating load impedance:

ZL = 50 Ω and matching network

1)Temperature dependance of fC: fC(TA) = fC(T0) (1 + TCf(TA - T0)2)

2) Impedance for passband matching bases on an ideal, perfect matching of the SAW filter to

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

—

433,42

—

MHz

(center frequency between 3 dB points)

Minimum insertion attenuation

min

433,31 ... 433,53 MHz

—

3,3

4,8

(including loss in matching coils)

Amplitude ripple (p-p)

433,34 ... 433,50 MHz

—

0,5

2,0

433,31 ... 433,53 MHz

—

1,0

3,0

Relative attenuation (relative to

min)

rel

10,00 ... 429,00 MHz

—

429,00 ... 432,62 MHz

—

433,92 ... 434,22 MHz

—

434,22 ... 434,42 MHz

—

434,42 ... 460,00 MHz

—

460,00 ...1000,00 MHz

—

Impedance for pass band matching 2)

Input:

ZIN

RIN

CIN

—

415 || 1,6

—

Ω || pF

Output:

ZOUT = ROUT || COUT

—

420 || 1,7

—

Ω || pF

Temperature coefficient of frequency 1)

TCf

—

-0,03

—

ppm/K2

Frequency inversion point

10—40

°C

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