B5251 datasheet(3/7 Pages) EPCOS

3 / 7 page

May 03, 2012

B5251

307.2 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˚C to 85 ˚C

Terminating source impedance:

ZS =

Ω and matching network

Terminating load impedance:

ZL =

Ω and matching network

min.

typ.

@ 25 ˚C

max.

Nominal frequency

—

307.2

—

MHz

Minimum insertion attenuation

(including matching network)

min

—

12.5

Passband width

rel < 1.2 dB

1.2 dB

46.2

—

MHz

rel < 3dB

3 dB

48.0

—

MHz

Error vector magnitude

fN ,WCDMA(κ)1)± 1.92 MHz

1) fN,WCDMA(k)=287.9MHz+k*5MHz;

k=(0,1,2,3,4,5,6,7)

—2

Amplitude ripple (p-p)

∆α

fN ± 20.5 MHz

—

0.7

1.2

Phase ripple (p-p)

∆ϕ

fN ± 20.5 MHz

—

6.2

deg

Absolute group delay

fN ± 20.5 MHz

—

0.55

1.0

µs

Group delay ripple (p-p)

∆τ

fN ± 20.5 MHz

—

100

Relative attenuation (relative to

min)

rel

100.00 MHz

...

210.00 MHz

—

210.00 MHz

...

275.00 MHz

—

339.00 MHz

...

400.00 MHz

—

400.00 MHz

...

600.00 MHz

—

600.00 MHz

...

1000.0 MHz

—

Temperature coefficient of frequency

TCf

—

–75

—

ppm/K

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