B3817 datasheet(3/7 Pages) EPCOS

3 / 7 page

May 30, 2005

SAW Components

B3817

208,0 MHz

Low-Loss Filter

Data Sheet

Characteristics

Operating temperature range:

= 0 ... 70 ˚C

Terminating source impedance:

ZS = 50 Ω and matching network

Terminating load impedance:

ZL = 200 Ω and matching network

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

min.

typ.

max.

Nominal frequency

—

208,0

—

MHz

Minimum insertion attenuation

min

(including matching network)

fN ± 1,92 MHz

—

11,7

13,0

Passband width

rel ≤ 1 dB

B1dB

—

4,2

—

MHz

Amplitude ripple (p-p)

∆α

fN ± 1,92 MHz

—

0,7

1,0

Phase ripple (p-p)

∆ϕ

fN ± 1,92 MHz

—

Phase ripple (rms)

∆ϕ

fN ± 1,92 MHz

—

1,1

—

˚ rms

Absolute group delay

mean

mean value within

fN ± 1,92 MHz

790

795

800

Relative attenuation (relative to

min)

rel

fN ± 2,53 MHz ... fN ± 2,70 MHz

—

fN ± 2,70 MHz ... fN ± 2,75 MHz

—

fN ± 2,75 MHz ... fN ± 2,90 MHz

—

fN ± 2,90 MHz ... fN ± 3,30 MHz

—

fN ± 3,30 MHz ... fN ±

10 MHz

—

fN ±

10 MHz ...

fN ±

28 MHz

—

fN ±

28 MHz ...

fN ±

60 MHz

—

Input IP3

—

dBm

Temperature coefficient of frequency1)

TCf

—

– 0,036

—

ppm/K2

Turnover temperature

—25—

˚C

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