B5217 datasheet(3/7 Pages) EPCOS

3 / 7 page

Sep 11, 2009

B5217

491.52 MHz

SAW Components

SAW IF filter

Data Sheet

Please read

cautions and warnings and

important notes at the end of this document.

Characteristics

Operating temperature range:

–40 to 85 ˚C

Terminating source impedance:

ZS =50 Ω and matching network

Terminating load impedance:

ZL =50 Ω and matching network

min.

typ.

@ 25

max.

Nominal frequency

—

491.52

—

MHz

Insertion attenuation at fN (T=25˚C)

6.0

7.0

8.0

Variation of Insertion att.

(rel. to α

rel

——

±0.9

Passband bandwidth

rel <= 3 dB

B3dB

1.0

1.67

—

MHz

Amplitude ripple (p-p)

∆α

fN ± 0.1 MHz

—

0.3

0.5

Relative attenuation

(relative to α

rel

fN -200.00 MHz ... fN - 10.00 MHz

—

fN -10.00 MHz ... fN -

3.00 MHz

—

fN + 3.00 MHz ... fN + 10.00 MHz

—

fN + 10.00 MHz ... fN +200.00 MHz

—

Temperature coefficient of frequency1)

1) Temperature dependance of fc: fc(TA) = fc(T0)(1 + TCf(TA – T0)2)

TCf

—

-0.036

—

ppm/K2

Turnover temperature

—25

—

˚C

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