B3841 datasheet(3/6 Pages) EPCOS

3 / 6 page

Feb 26, 2002

SAW Components

B3841

174,2 MHz

Low-Loss Filter

Data Sheet

Characteristics

Operating temperature range:

= -5 to +85 ˚C

Terminating source impedance:

ZS = 250 Ω || 43 nH

Terminating load impedance:

ZL = 400 Ω|| 92 nH

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

min.

typ.

max.

Nominal frequency

—

174,2

—

MHz

Minimum insertion attenuation

min

—

6,2

8,0

3dB bandwidth

rel

≤ 3,0 dB

B3,0dB

660

730

—

kHz

Amplitude ripple (p-p)

fN ± 67 kHz

∆α

—

0,1

0,25 dB

fN ± 125 kHz

∆α

—

0,3

1,0

fN ± 200 kHz

∆α

—

0,6

1,2

Absolute group delay (at

fN )τ

—

2,3

2,6

µs

Group delay ripple (p-p)

fN ± 200 kHz

∆τ

—

190

260

Relative attenuation (relative to

min)

rel

fN ± 469 kHz

...

fN ± 600 kHz

—

fN ± 600 kHz

...

fN ± 860 kHz

—

fN ± 860 kHz

...

fN ± 1200 kHz

—

MHz

...

168,2

MHz

—

168,2

MHz

...

fN − 1200 kHz

—

fN + 1200 kHz

...

180,2

MHz

—

180,2

MHz

...

400

MHz

—

Return loss (at

fN )

—

Temperature coefficient of frequency 1)

TCf

—

–0,036

—

ppm/K2

Turnover temperature

—40

—

˚C

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